Lab Wale

Shopping cart

  • Your cart is empty
  • Continue Shopping

Free Shipping On Order of ₹499 And Above

science projects for class 7

All Departments

+91-8527246961, recently viewed.


25 Awesome topic ideas for class 7 Science projects

Class 7 science projects.

  • By Lab Wale
  • Posted on July 11, 2023

class 7 Science projects

Table of Contents

1. Swing a Glass of Water

2. exploration of swim bladders , 3. blow hot or cold bubbles, 4. spin bey blades to explore angular momentum, 5. play around with oxidation, 6. generate electricity science , 7. create a taxonomy system, 8. build a da vinci bridge, 9. design a pinball machine , 10. learn whether color affects memory, 11. collect and control biofilm, 12. tinker around with hydraulic power , 13. swab and test for germs, 14. copper-plate some coins, 15. stretch your mind with a flexibility , 16. extract dna from an onion, 17. explore how sugary drinks affect teeth , 18. design your own slime, 19. construct a water clock , 20. ride the wave (machine), 21. purify water with charcoal , 22. test ph using cabbage, 23. burn calories to explore stored energy  , 24. discover computer coding with lego bricks  , 25. marvel at a density rainbow , final words.

If you’re looking for some great ideas for class science projects, you’ve come to the right place! In this article, we’ll give you some tips on how to choose a project that’s both interesting and educational.

We know that coming up with science project ideas can be tough, so we’ve compiled a list of some awesome ideas to get you started. Whether you’re interested in studying the stars or investigating the properties of matter, there’s a project here for you!

Remember, the best projects are those that are both fun and informative. So take your time in choosing a topic, and make sure to consult your teacher before getting started. With these guidelines in mind, you’re sure to create a masterpiece!

There are a number of really great ideas for class 7 science projects. These can be done with just a few laboratory items and a little bit of knowledge about how circuits work. These are the fun project that can be done over the course of a few weeks. 

A glass of water is a great way to get started with your science project. Not only is it an easy and inexpensive way to get started, but you can also use it to learn about the properties of water and how they change when different substances are added to it.

You can also use it to study the effects of temperature on water and how different liquids mix together.

When it comes to exploring the science behind swim bladders, there are a few key things to keep in mind.

First, swim bladders are gas-filled sacs that help fish maintain their buoyancy.

Second, the size and shape of a fish’s swim bladder can vary depending on the species.

And lastly, there is some evidence to suggest that fish with swim bladders may be able to sense changes in water pressure and temperature.

Bubbles are always a hit with kids, so why not incorporate them into a science project?

There are two ways to blow bubbles – with hot air or cold air. Try both methods and see which one produces bigger bubbles.

You can also experiment with different types of soap to see which one makes the strongest bubbles.

If you’re looking for a fun and engaging way to learn about angular momentum, then look no further than Beyblade spinning toys. By spinning a Beyblade around its axis, students can observe firsthand how angular momentum affects an object in motion.

You can also experiment with different blade shapes and sizes to see how they affect the toy’s spin.

There are many different types of oxidation that can be explored through class 7 science projects. One example is rust, which is the oxidation of iron. 

This can be explored by testing different methods of preventing rust, such as painting or coating iron in a protective layer.

Other types of oxidation include the fading of colors and the decomposition of materials. These processes can be accelerated and monitored through experiments.

Generating electricity is a process of converting one form of energy into another. In this science experiment, we will be using our bodies to generate electricity.

First, we will take one of the alligator clip wires and attach it to the positive side of the battery.

 Then, we will take the other alligator clip wire and attach it to the negative side of the battery. Finally, we will touch the two wires together, which will cause the light bulb to light up!

This experiment is a great way to learn about how electricity is generated and used in our everyday lives.

When creating a taxonomy system for a class 7 science project, it is important to consider what information will be most useful for the project.

For example, if the focus of the project is on plants, then including information on kingdom and phylum would be most helpful. 

If the focus of the project is on animals, then including information on class and order would be most helpful.

Once you have decided what information will be most useful for the project, you can begin creating your taxonomy system.

In this project, students will learn about the engineering principles used by Leonardo da Vinci to design his famous bridge. They will then use these same principles to build their own bridges out of popsicle sticks and glue.

This is a great project for teaching the basics of engineering and physics .  

Students will use popsicle sticks and glue to build a replica of the famous da Vinci bridge.

This project is perfect for students who are interested in engineering and architecture. In addition to being a fun and engaging class 7 science project, this experiment will also teach students about the science of bridges. 

A pinball machine is a great way to teach the scientific method to kids. With this experiment, they will learn how to design and build a simple pinball machine. They will also learn about the physics of motion and energy. 

First, cut a hole in the cardboard. This will be the starting point for your ball. Next, tape three paper cups upside down on the cardboard. These will be your targets. Finally, cut a small slit in the bottom of each cup. The ball will fall through these slits when hit.

Now it’s time to test your machine! Drop the ball from the top of the cardboard and see how it does. Does it hit all the targets? Does it go off the edge of the cardboard? Make adjustments until you are happy with your design.

Color has been shown to affect memory in a variety of ways.

For instance, one study found that participants were better able to remember words that were presented in red font if the words had a positive connotation (e.g., love, happy), but they were better able to remember words that were presented in blue font if the words had a negative connotation (e.g., sad, evil).

These findings suggest that color can influence memory by affecting how we process and encode information.

Therefore, if you’re working on a class 7 science project about memory, you may want to experiment with different colors to see how they impact memory recall.

To collect and control biofilm, students will need to understand what it is and how it forms. A biofilm is a slimy substance that contains bacteria, fungi, and other microorganisms. It can form on wet surfaces, such as in pipes or on teeth.

To control biofilm, students will need to learn about the different methods of cleaning and disinfecting surfaces.

They will also have to understand how biofilm can be used to benefit humans, such as in the production of certain medications or in the treatment of sewage.

 If you’re looking for some ideas for your next class 7 science projects, why not try a hydraulic power experiment?

Hydraulic power is the force that is generated when water is under pressure. By using this force, we can do things like lift heavy objects or move vehicles. In this experiment, you will be using hydraulic power to move a small object.

Fill your container with water and add a few drops of food coloring if you like. Place your object in the center of the container.

Make sure that the top of the object is level with the water line.

Now, apply pressure to one side of the container with your hand. You should see the object start to move!

Try different amounts of pressure to see how it affects the speed of movement. Can you make the object move faster or slower? 

There are many ways to test for the presence of germs, but one of the most common is to swab an area and then test the swab for bacteria or other microorganisms. This can be done using a variety of methods, including microscopy, culture plates, and DNA sequencing.

Copper-plating coins is a great way to add a personal touch to your pocket change. This project is perfect for kids who are interested in science and chemistry.

First, clean your coins with the distilled water and dry them off. Next, cut the copper into small strips using scissors or wire cutters.

Attach one end of the copper strips to the positive terminal of the battery with an alligator clip.

Then, touch the other end of the copper strip to the negative terminal of the battery. Finally, dip your coins into the solution and wait a few minutes for them to turn green.

Too often, we get bogged down in the same old routines and fail to see the beauty and excitement that surrounds us everyday.

One way to combat this rut is to challenge your brain with new experiences. A great way to do this is through flexibility experiments.

Flexibility experiments are a fun way to explore the world around you while also growing your mental capacity. By their very nature, they force you to think outside the box and come up with new ways to approach problems. This makes them perfect for science class projects.

There are endless possibilities when it comes to flexibility experiments. You could try something as simple as seeing how long you can hold a handstand or how far you can stretch without moving your feet.

Or, you could get really creative and build a Rube Goldberg machine that accomplishes a simple task in the most complicated way possible.

No matter what you choose to do, flexing your mental muscle with a flexibility experiment is sure to be a fun and enlightening experience!

There are many ways to extract DNA from an onion, but we will outline two of the most popular methods.

The first method is to cut the onion in half and then use a blender or other tool to blend it up into a liquid.

Once the onion is liquified, add some dish soap and stir. The dish soap will break down the cell walls of the onion and release the DNA. 

Then, pour the mixture into a strainer to remove any solids. Finally, add some isopropyl alcohol to the liquid and gently swirl.

The DNA will precipitate out of solution and collect at the bottom of the container. You can then scoop it out with a spoon or pipette.

Sugary drinks are often high in acidity, which can lead to tooth enamel erosion.

In this experiment, students will investigate how sugary drinks affect teeth by placing eggshells in different types of sugary drinks and observing the changes over time.

Collect a few eggshells and clean them thoroughly. Allow them to dry completely. Fill three glasses with water and label them “control”. Add one eggshell to each glass.

Fill three other glasses with different sugary drinks and label them accordingly. Add one eggshell to each glass.

Observe the eggshells in the control group after 24 hours, 48 hours, and 72 hours. Record your observations in a table or chart.

Repeat step 4 for the eggshells in the sugary drink group. Compare your results between the two groups of eggshells!

There are a ton of ways to make slime, but here is one way to design your own slime:

In a bowl, mix together the glue and water. Add food coloring, glitter, and any other desired add-ins to the bowl and mix together.

In a separate bowl, mix together 1/2 tsp borax powder with 1/4 cup water. Stir until the borax is dissolved. Pour the borax mixture into the glue mixture and stir until combined. The slime will start to form immediately.

Once everything is mixed together, knead the slime with your hands until it reaches the desired consistency. If it’s too sticky, add a bit more borax powder; if it’s too stiff, add a bit more water. And that’s it – you’ve made your very own slime!

Cut a small hole in the bottom of your container. The hole should be big enough to fit the end of your ruler or measuring tape. Fill your container with water. You can add food coloring to the water if you like. 

Place the container on a flat surface and insert the ruler or measuring tape through the hole in the bottom. The end of the ruler or measuring tape should be touching the bottom of the container.

Use the permanent marker to mark where the water level is on the outside of the container. This will be your starting point. Wait 1 hour and then use the permanent marker to mark where the water level is again. This will be your ending point.

Measure the distance between your starting point and ending point. This is how much water has flowed out of your container in 1 hour!

If you’re looking for an awesome science project, why not try riding the wave machine? This is a great project for anyone interested in physics or engineering, and it’s sure to be a hit with your classmates. Here’s what you’ll need to do to get started:

Build your own wave machine. You can find plenty of instructions online or in science textbooks. Experiment with different materials to see what works best. Some good options include cardboard, wood, foam, and plastic.

Once you have your machine built, test it out! See how high you can make the waves and how long they last. Make observations and take measurements throughout your experiment. Be sure to record all of your data so that you can analyze it later.

Present your findings in a detailed report or presentation. Include information on your design, testing process, results, and conclusions.

When it comes to Science projects, there are many different ways to purify water. One popular method is using charcoal. This experiment will show you how effective charcoal is at purifying water.

Pour the cup of water into the bowl. Add the activated charcoal to the water and stir. Place the coffee filter or cloth over the top of the bowl and allow the mixture to sit for 15 minutes.

After 15 minutes, remove the coffee filter or cloth and observe the filtered water. You should notice that it is much clearer than when you started!

First, you’ll need to gather your materials. You’ll need a head of cabbage, red wine vinegar, water, a glass jar or container, a measuring spoon, and pH strips. You’ll also need blue food coloring if you want to see the pH change color as it happens.

To start, cut the cabbage into small pieces and add it to the jar or container. Add equal parts red wine vinegar and water to the cabbage (1/2 cup each should be enough). If you’re using food coloring, add a few drops of blue food coloring to the mixture now.

Place the lid on the jar or container and give it a good shake until everything is mixed together well. Let the mixture sit for at least 24 hours so that the cabbage has time to release its natural pH indicator – this is what will show you how acidic or basic your solution is on the pH scale.

After 24 hours have passed, it’s time to test your solution! Take a pH strip and dip it into the liquid in the jar or container. Compare the color of the strip to the chart that came with your pH strips – this will tell you where your solution falls on the pH scale (acidic, neutral, or basic).

To measure the amount of energy that is stored in various types of food, we will need to conduct an experiment. In this experiment, we will be burning calories to see how much energy is released.

Place the food item on the balance scale and weigh it. Record the weight in your data table. Place the food item on a heat-proof surface. Ignite it with a match and start the stopwatch or timer. Record the time in your data table. 

Allow the food item to burn completely. Once it has burned out, weigh the ashes on the balance scale and record the weight in your data table. Calculate the amount of energy released by the food by subtracting the weight of the ashes from the original weight of the food item.

This will give you grams of lost weight due to combustion. Energy release is measured in kilojoules/kilocalories (kJ/kcal), so use your calculator to convert grams lost to kJ/kcal lost using this formula: kJ/kcal = 4184 x grams lost

Coding with LEGO bricks is a great way to introduce kids to the basics of computer programming. By following simple instructions, they can create programs that make their LEGO creations move and interact with each other. This is a great way to get kids interested in coding, and it’s also a lot of fun! 

Coding with LEGO is a great way for kids to learn the basics of coding. By experimenting with different code blocks, they can learn how to create simple programs and games . Plus, it’s a lot of fun!

 A density rainbow is a beautiful and easy way to learn about density ! All you need is a clear container, some water, food coloring, and a few common household objects.

To make your density rainbow, start by filling the container with water. Add a few drops of food coloring to the water, and then carefully add your objects one at a time. Be sure to add them in order from heaviest to lightest!

Once all of your objects are in the water, take a step back and admire your handiwork. The different colors of the food coloring will show you which object is denser than the others. The heaviest object will be at the bottom of the container, while the lightest object will float on top!

It’s finally time to wrap up this awesome blog post on ideas for class science projects! We hope you found some inspiration from our list and that your students have a blast with their chosen project. As always, be sure to consult your child’s teacher before starting any project to make sure it falls within the guidelines.

And there you have it! Our top ideas for class science projects. Did we miss any? Kindly let us know in the comments below.

We hope that this list of 25 awesome topic ideas for class 7 Science projects has given you some inspiration for your own project. Remember to choose a topic that interests you and that you can research thoroughly. Good luck!

' src=

Related posts

Class 5 Science Projects for Presentation 15 Interesting Projects

  • Class 5 Science Projects

Class 5 Science Projects for Presentation: 15 Interesting Projects

Maths Model Ideas for Class 5 to 10

  • Class 10 Class 5 Class 6 Class 7 Class 8 Class 9 Mathematics Projects

Suitable Maths Model Ideas for Class 5 to 10

The 30 Easiest Science Experiment for Classrooms

  • Science Projects

The 30 Easiest Science Experiment for Classrooms

The Top 10 Class 8 Science Projects to Showcase

  • Class 8 Science Projects

The Top 10 Class 8 Science Projects to Showcase

20 Interesting Class 10 Science Projects for Exhibitions

  • Class 10 Science Projects

20 Interesting Class 10 Science Projects for Exhibitions

10 Easy Class 4 Science Projects for Exhibitions

  • Class 4 Science Projects

10 Easy Class 4 Science Projects for Exhibitions

18 Mind-Blowing Ideas for Class 6 Science Projects

  • Class 6 Science Projects

18 Mind-Blowing Ideas for Class 6 Science Projects

Class 12 Science Projects 50 easy and interesting ideas

  • Class 12 Science Projects

Class 12 Science Projects: 50 easy and interesting ideas

Leave a reply cancel reply.

Save my name, email, and website in this browser for the next time I comment.

science projects for class 7

WhatsApp us

  • Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar

Teaching Expertise

  • Classroom Ideas
  • Teacher’s Life
  • Deals & Shopping
  • Privacy Policy

67 Superb Science Fair Projects For 7th Graders

September 18, 2023 //  by  Suzanne Bucknam

From homemade helping hands to germs and sugary drinks, we have all of the most creative ideas for science projects right here! Time to use the scientific method for some awesome experiments and impress your peers. Let us help you win your middle school science fair!

1. Caffeine and Computers

Can caffeine really help us focus more and work harder or faster? Write down some questions you want to answer and get experimenting with a cup of coffee (or two) and a computer! You can also use soda or another beverage with high caffeine content.

Learn More: ThoughtCo.

2. Bridging the Gaps

Grab some pencils and small rubber bands to build a bridge inspired by Leonardo da Vinci! Follow the instructions here and see how much weight your bridge can hold at the end. You can make it more challenging by setting a time restriction or making it into a race!

Learn More: Pinterest

3. Generating Amazement

This science fair project idea is sure to win you some blue ribbons! See what materials you need here and get started constructing your generator.

Learn More: Sciencing

4. Blowing Bubbles

Does air temperature affect whether or not bubbles can form? Answer this question and others with this fun and interactive bubble-blowing science experiment using hot and cold water and see what happens!

5. Homemade Chapstick

This science activity only requires a few natural materials that your kids can mix and match to create a completely unique lip balm. With just a few easy steps, they’ll use ingredients such as beeswax, shea butter, and almond oil to whip up this useful project that they can then share with their friends and family.

Learn More: Ecoliving Mama

6. Bacteria Buddies

Collect and measure biofilm for your 7th grade science fair project. Pick a small container or surface you want to observe, submerge it in water for 2 weeks, and see what cool bacterial growth happens. Check out the link here to get started!

Learn More: The Homeschool Scientist

7. High Voice Helium

Here is some balloon science that is sure to bring laughs to the science fair. Why does helium affect our voice? Find out the answer for yourself by attempting this fun experiment!

Learn More: Physlink

8. LEGO Coding

Do your students have an interest in computers? Grab some LEGO bricks and learn the basics of coding with this fun and useful engineering science fair project .

Learn More: Little Bins For Little Hands

9. A Rainbow of Density

This colorful experiment looks almost pretty enough to drink! Measure the density of various liquids by pouring them into a see-through container and seeing how they settle in perfect layers.

10. Helping Hands

With a few materials, you can make your own working robotic hand! See what you need to begin here, and start using your extra hand to pick up some toys or have a glass of water.

Learn More: Science Buddies

11. Can Crusher

Did you know you can crush cans with air? Well, air pressure. It’s a matter of hot and cold water causing pressure build-up in the can. Follow the instructions here to see if you can snap, crackle, and pop!

Learn More: Steve Spangler Science

12. Cooking with The Sun

Are you hungry? Now you can roast your marshmallows using an old pizza box, aluminum foil, and a few other household items. See how to put your over together here and let the sun do the rest!

Learn More: ChildSci

13. Caviar or Juice Balls?

Your classmates don’t want to drink their soda or juice? Turn it into fun and delicious juice spheres using this amazing 7th-grade science project. See what you’ll need to transform your liquids here, and get mixing!

14. Acid Rain

See all the types of corrosion and how they are affected by pH levels using this fun 8th grade science project. You can choose any acidic liquid and measure the changes you see over time. Find instructions here and get experimenting!

15. It’s Dome Time!

Use newspaper, tape, and your amazing brain to create a geodesic dome that can support a surprising amount of weight. This is a simple age-appropriate idea for 5th graders but can be modified with more challenging designs for your 7th or 8th grader.

16. Climate Change in Action!

Teach your middle school students about greenhouse gases and the wonders of our atmosphere with this fun science experiment. You’ll need some glass jars, cold water, and a thermometer. Follow the instructions here to see how the sun can heat up the water and release the gas inside the jars!

Learn More:

17. The Power of Charcoal

This magical powder is used in a variety of liquid water purification systems and you can see it in action with this easy science experiment. Follow the simple instructions here to watch how activated charcoal absorbs and removes molecules from your water!

18. Bath Bomb Science

Bath bombs are great for a relaxing soak, but did you ever wonder if water temperature affects their bubbles? Grab some jars, a thermometer, and some of these fizzy bombs to test and see the results on your bath bomb science log. Find detailed instructions on how to, here!

Learn more: Steam Powered Family

19. Mummy Apples?!

Did you know that with a few basic household ingredients you can mummify your food? This experiment uses apple slices, but you can try this in class or at home with a variety of foods. See how to make these salty mummies here!

Learn More: Raising Arizona Kids

20. It’s A Germy World Out There!

Pick a room at home, or your classroom and start swabbing! Using cotton swabs, take samples from multiple surfaces and let them sit in agar and grow. Take pictures and notes on how the germs grow in a week or two. To see what you need, check out this link.

Learn More: Angelic Scalliwags Homeschool

21. Insect Behavior Experiment

There are lots of simple and observable animal behavior experiments to try. This one sees how temperature affects ant behavior. You can put a container of ants in the fridge and another in the sun and watch/record their movements.

Learn More: Ants Alive

22. Color Associations

Try this experiment out on your classmates to see how colors affect how we learn, react, and retain information. You’ll need some index cards and markers. See how to execute this experiment in a class by following the instructions in this link.

23. Pinball Fun

Pinball machines may seem complicated, but with some creativity and a few art supplies, you can make your own to show off at the science fair. See the engineering design process to build your own here.

Learn More: Science Museum Group

24.  Classifying Candy

Classification is a way to find similarities and differences within a group. With this fun experiment, your students will classify different candies to represent taxonomy and understand a little more about group formation.

Learn More: Our Journey Westward

25. Amazing Oxidation!

Grab some household items, put them in paper cups of water, and see if they rust. Watch as they react differently depending on the type of water (distilled water versus saltwater) and take notes on your findings. For more information, check out this helpful link!

Learn More: Teach Beside Me

26. Melting Ice Mixtures

See if adding sugar, salt, or other substances changes the melting speed of ice cubes with this fun and easy experiment. Follow the steps here and log your results!

27. Air-Powered Car

Can a balloon propel a car? Test this hypothesis yourself (in a mini version) using a simple homemade cardboard car and a balloon. Make a list of questions you wish to test and see if this is the future of travel!

28. Preservative Spices

This spicy experiment will have your brain and tastes buds tingling! See what spices contain the preservative ingredient “carvacrol” and how they react with dissolved chicken broth cubes by following the procedure instructions here.

29. Testing How Medications Dissolve

There are many brands of Ibuprofen out there. Pick up a few and test how well and fast they dissolve to see their effectiveness at relieving pain. Most medications need to pass into your bloodstream to work so this can give you useful real-life information. For tips and information check out this useful link.

30. Water Erosion

This experiment is a fun way to see how water and earthwork together to create incredible natural landscapes. Pour some water into sand and see how the sand moves around and forms trenches. Log your results and repeat using different methods and strategies.

31. Tee Off!

Do you like golf? Are you curious about how height affects your swing and accuracy? Try this fun experiment by getting some volunteer golfers, male and female, and 3 different tees of varying heights. See if the longer tee helps or hinders the velocity of your ball and record your results.

Learn More: Poster 4 Teachers

32. Are All Sugars the Same?

Test to see how sugar from different sources is processed by the body. Use water, honey, juice, and table sugar to test the reactions with reagent tablets. The results might give you a sugar rush!

33. Manicure Time

Grab a few different types and brands of nail polish from your local beauty store and test them out to see which last the longest. You can put a different polish on each fingernail and see how many days they take to chip or fade. Record your results.

Learn More: Supply Me

34. Germs Around Us

Test to see which surfaces have the most germs on them. Get a bacteria growing kit and pick some places to swab. You might be surprised by the germy results!

35. Portable Solar Energy

Build your own solar battery to charge your smart devices on the go. Follow the instructions here to put together your solar battery pack and see how well it works at powering your phone.

Learn More: Instructables

36. Remembering Different Fonts 

Does using one font help us remember the content better than if we were to use another one? If our teachers use Times New Roman versus Serif will we be able to remember information more easily? Grab a computer and some volunteers and try it out yourself!

Learn More: Science Fair Adventure

37. Keep it Hot!

Do you wish your hot coffee, tea, or soup never got cold? Is there a way we can keep things hot? Try out this experiment using different cups and materials to see which ones keep the heat in the longest.

38. Musical Study Session

Should classrooms have music playing in the background to help students concentrate? How do different people react to music and do different types of music affect individuals in alternative ways? Try this out with a volunteer classroom and a playlist of various genres.

39. Flowers in Time

Are there simple things we can add to our water to help our flowers bloom for longer? Does water temperature matter? What if we add sugar or salt? Test out your ideas and hypotheses with this experiment.

40. Pen or Pencil?

Test your hand movement/fatigue and note-taking ability with different writing instruments to see which works the best. Grab a few options: big pencil, mini pencil, blue pen, gel pen, marker, colored pencil. Use your classmates as test subjects and see what they think!

41. Dominant Senses

Can we feel more sensations in the dominant side of our bodies? You can try this out with 2 bowls, some hot and cold water, and a stopwatch/timer. See if you and your friends can last longer in the different temperatures with your non-dominant or dominant hands.

42. Light Up the Dark

Black lights are a super fun tool to use in any experiment with fluorescents. See what materials, liquids, chemicals, and natural resources glow under a black light and which do not. Gives reasons to explain your findings and if your predictions were proven correct or incorrect.

43. Green Thumb or Bubble Gum?

How can we make hybrid fruits and vegetables like baby kiwi and blood limes? Scientists and botanists have been experimenting with grafting for centuries, and so can you! Use some chewing gum as a way to hold the stem and cuttings together so they can grow into one new hybrid branch, and see how your new invention grows!

Learn More: 100 Amazing Science Fair Projects by Glen Vecchione

44. Vision and Eye Color

Do blue-eyed people see better than brown-eyed people? More specifically this experiment looks at peripheral vision in different eye colors. Grab some classmates with different eye colors and some objects you can place around their area of vision to see who can see the best and if there is a correlation with eye color.

45. Pop Pop POP!


See which popcorn brand pops the most kernels per bag. Grab a few bags of different popcorn and test this out with the same time and microwave to see which gives you the most pop for your buck!

46. Insulation Investigation

science projects for class 7

Get your kiddies to explore how well different materials insulate against the cold with this simple science fair project. They can use a variety of materials to insulate some hot water, then observe and record the temperature changes that occur over time with a thermometer. 

Learn More: Family Education

47. Earthquake Simulator

Shake things up at your science fair by having your learners develop an earthquake simulator. Simply have them create a shake table to demonstrate how different structures react to tremors.

Learn More: YouTube

48. Scratching the Surface

science projects for class 7

Rocks rock! Get your kiddos to create their very own hardness scales with this super geology project. They can perform scratch tests on different minerals to help them create their scale, and then compare their results to determine which minerals are the toughest in the bunch.

Learn More: All Science Fair Projects

49. Exploring Capillarity

science projects for class 7

Set your little scientists on a quest to unravel the secrets of capillarity. All they’ll need are humble paper towels, water, and food coloring to answer a pressing question: Does thickness affect speed? As they work, have them record their results to then share their Eureka moments with the rest of their class.

Learn More: 123 Homeschool 4 Me

50. Plastic Bag Biodegradation

science projects for class 7

This one’s for all the eco-champions in your class! Arm your students with shovels and biodegradable plastic bags before having them bury the bags in some soil to conduct a study on how fast different materials break down. A few weeks later, have them unearth their bags to observe the various states of decomposition.

51. Hydroponics vs. Soil Planting

science projects for class 7

Green thumbs at the ready! Have your kiddos plant seeds in both soil and a hydroponic setup. Then, over several weeks, guide them in keeping a journal where they document each plant’s growth. By the end, you and your students will have enough data to determine which method is superior for plant growth.

52. Floating on Salt

science projects for class 7

Have your learners navigate the topic of buoyancy with this fun, floating experiment. They’ll use varying salt concentrations to test if an egg floats better in salted or unsalted water. We guarantee that they’ll be shocked at the difference some salt makes!

Learn More: Science Sparks

53. Make a Compass

science projects for class 7

Challenge your kiddos to channel your inner navigators as you guide them through the mystical realms of magnetism. Equip them with a needle and a strong magnet before setting them loose to create their very own compasses. Get them to check that their creations work by comparing them against the readings of real compasses. 

54. Fruit Battery Power

science projects for class 7

This project is perfect for keen little electricians! Have your pupils connect wires to different fruits and show them how to measure which one produces the most voltage. Whether it’s a lemon, an orange, or a banana- they’ll soon discover the shocking truth about the power of fruit!

Learn More: Teaching with Jennifer Findley

55. Natural vs. Synthetic Vitamin C

science projects for class 7

Lab coats on, everyone! Your kiddos will love this activity where they get to become chemists for the day. Guide them in investigating which has a higher vitamin C content- natural sources or synthetic supplements. Using titration methods with iodine, they’ll quickly discover which source packs the greatest punch.

Learn More: StudyLib

56. Glowing Germs

science projects for class 7

Switch off the lights, we’re going dark for a germ investigation! Shock your students as you illuminate an unseen world for them. Start by applying a UV-reactive gel to commonly handled objects around the classroom. Next, break out a blacklight and let them observe just how easily those invisible “germs” can spread.

Learn More: Kids Activities Blog

57. Photosynthesis in Different Light Conditions

science projects for class 7

Let the sun shine! For this interesting project, your kiddos will grow plants under different colored pieces of cellophane and monitor their progress. Show them how to measure growth and assess the plants’ health, so that they can determine which light color is the best for photosynthesis.

Learn More: A Green Muse

58. Effect of Microwave Radiation on Seeds

science projects for class 7

Have your learners investigate the effects of a microwave with this next idea! Start by getting your pupils to microwave different seeds for varying amounts of time. After they plant them, help them to document the germination and growth rates. You and your class might be surprised to discover that radiation has its pros and cons in the realm of botany!

59. Homemade Barometer

science projects for class 7

Step aside, weather channel! Your students will be the new meteorologists in town. Start by showing them how to build their own barometers and keep daily logs. To take things a step further, encourage them to try to make connections between atmospheric pressure and weather conditions. 

Learn More: Housing a Forest

60. Impact of Exercise on Memory

science projects for class 7

Combine a workout with memory drills with this active science project to see if physical activity boosts retention. Get your kiddos moving with an exercise session and then get them to try and complete a memory test. On another occasion, try a memory test on its own and check the difference! This experiment may just produce a generation of fit geniuses!

61. Homemade Spectroscope

science projects for class 7

Invite your kiddos to step into the multicolored world of spectral analysis with this fantastic project idea! By using simple materials like a DVD, your learners can build their very own spectroscopes. Once complete, you can let them examine various light sources to identify their unique spectra of colors. 

Learn More: Buggy and Buddy

62. Homemade Compost

science projects for class 7

Dig into sustainable living by getting your kiddos to start a compost bin! As they begin adding different organic materials, they’ll be able to observe the differences in decomposition rates which will give them valuable insights into natural recycling processes.

Learn More: The Happy Housewife

63. Detecting Fake Silver

science projects for class 7

Real or fake? Let your students decide! Task your students with authenticating real silver using a variety of different methods. From checking its magnetic properties to observing chemical reactions, they’ll have fun exploring all of the various techniques to identify real silver.

Learn more: Kidal

64. Artificial vs. Natural Sweeteners

science projects for class 7

Let the sugar rush begin! Show your little scientists yeast metabolism in action with this exciting, hands-on activity. They can see the results of yeast on natural and artificial sweeteners by watching balloons fill up with the carbon dioxide produced by the reaction. This project will undoubtedly show them which sweetener really rises to the occasion.

65. Brine Shrimp and Water Quality

science projects for class 7

It’s time to dive underwater! Have your kids evaluate the effects of water quality on brine shrimp survival. They can start by setting up tap, distilled, and saltwater environments before monitoring which is most shrimp-friendly over the course of a few days or weeks.

Learn More: Home Science Tools Resource Center

66. The Sweetness of Organic vs. Non-Organic Fruits

Hold a sweetness showdown right in your very own classroom! With this fantastic project, your students will get the chance to use refractometers to gauge the sugar content in organic and non-organic fruits. Which fruit will claim sweet victory?

Learn more: YouTube

67. LDR (Light Dependent Resistor) and Light Intensity

Circuit boards at the ready! Have your learners set up a simple electrical circuit featuring a light-dependent resistor and then ask them to measure how its resistance changes with varying light conditions. What an enlightening introduction to electronics!

The Edvocate

  • Lynch Educational Consulting
  • Dr. Lynch’s Personal Website
  • Write For Us
  • The Tech Edvocate Product Guide
  • The Edvocate Podcast
  • Terms and Conditions
  • Privacy Policy
  • Assistive Technology
  • Best PreK-12 Schools in America
  • Child Development
  • Classroom Management
  • Early Childhood
  • EdTech & Innovation
  • Education Leadership
  • First Year Teachers
  • Gifted and Talented Education
  • Special Education
  • Parental Involvement
  • Policy & Reform
  • Best Colleges and Universities
  • Best College and University Programs
  • HBCU’s
  • Higher Education EdTech
  • Higher Education
  • International Education
  • The Awards Process
  • Finalists and Winners of The 2022 Tech Edvocate Awards
  • Finalists and Winners of The 2021 Tech Edvocate Awards
  • Finalists and Winners of The 2020 Tech Edvocate Awards
  • Finalists and Winners of The 2019 Tech Edvocate Awards
  • Finalists and Winners of The 2018 Tech Edvocate Awards
  • Finalists and Winners of The 2017 Tech Edvocate Awards
  • Award Seals
  • GPA Calculator for College
  • GPA Calculator for High School
  • Cumulative GPA Calculator
  • Grade Calculator
  • Weighted Grade Calculator
  • Final Grade Calculator
  • The Tech Edvocate
  • AI Powered Personal Tutor

College Minor: Everything You Need to Know

14 fascinating teacher interview questions for principals, tips for success if you have a master’s degree and can’t find a job, 14 ways young teachers can get that professional look, which teacher supplies are worth the splurge, 8 business books every teacher should read, conditional admission: everything you need to know, college majors: everything you need to know, 7 things principals can do to make a teacher observation valuable, 3 easy teacher outfits to tackle parent-teacher conferences, 43 of the best 7th grade science projects and experiments.

science projects for class 7

Are you looking for science activities to do with your 7 th graders? No sweat. We have you covered. Check out our list of 43 science projects and experiments that you can try with your 7th graders this month.

  • Yeast Metabolism with and without Aeration | – Grades 6-8 Biology experiment that evaluates the effects of glucose metabolism in yeast.
  • Aspirin Absorption in Carbohydrate Solutions | – Grades 6-8, Does aspirin absorb into the bloodstream quicker if taken with a carbohydrate food? Test aspirin dissolution in an assortment of carbohydrate solutions.
  • Bacteria and Toothpaste | – Grades 6-8, Do you know which toothpaste cleans your teeth best? In this project, you will row bacteria from your recently brushed teeth in petri dishes to find out the answer.
  • Making Batteries from Fruits and Vegetables | – Grades 4-7, Use veggie power to build a simple battery from a variety of vegetables. Which ones are the most powerful?
  • How Do Roots Grow When the Direction of Gravity Changes? | -Grades 6-10, Plants respond to gravity by stems that grow upward and roots that grow downward. Experiment with germinating seeds and rotate them to make up down and down up. How do you think the growing seedlings will respond?
  • Hydroponics vs. Soil Growth | – Grades 6-8, In this project, students find out if plants grow better in soil or a hydroponic solution.
  • Puppy Proportions: Your Dog’s Early Months | – Grades 6-8, Find out how a puppy’s weight, growth, and proportions change early in their lives.
  • Do Migratory Birds Like It Hot? | – Grades 6-8, Pick a species of bird and determine if there is a correlation between air temperature and where and when the birds migrate.
  • That’s a Real Smile! …or is it? | – Grades 6-8, Can people tell the difference between a fake smile and a real one? Gather information from dozens of volunteers to find out.
  • Build a Raft Powered by Surface Tension | – Grades 6-10, Learn about the properties of surface water tension, and use it to propel a raft.
  • Paw Preference in Pets | – Grades 7-10, Are animals left-handed or right-handed like humans?
  • Bat Detector: Listen to the Secret Sounds of Bats | – Grades 7-10, Study the behavior of bats to find out how do they use echolocation to catch their prey
  • Saving Migratory Animals | – Grades 7-10, They’re here today but could be gone tomorrow. Examine the migratory path of a bird species and the similarities and differences between their winter and summer habitats. Recommend which locations should be preserved to protect these species.
  • Which Metal Is the Most Resistant to Corrosion? | – Grades 6-8, Test several kinds of metal exposed to the air, tap water, and saltwater to determine which are the most resistant to corrosion, and which substances are the most corrosive to them.
  • Ionizing vs. Photoelectric Smoke Detectors | – Grades 6-8, Learn how smoke detectors work, and compare the effectiveness of ionizing smoke detectors to photoelectric smoke detectors.
  • Robot Movement | – Grades 6-8, Construct a robot equipped with sound/touch sensor circuitry. Run it through a maze to find out if it displays sequential or random movement.
  • Repurposed Designs | – Grades 6-8, Identify items that need repurposing such as e-waste, batteries, and mattresses. Then get creative and Invent your own original repurposed design.
  • Solar-Powered Robot Bug | – Grades 6-8, Explore electronics and solar energy by building the Frightened Grasshopper, a solar-powered bug.
  • Stressed Out with Beams | – Grades 6-8, Test the load-bearing capacity of several types of beams, including I-beams, U-beams, rectangular beams, and T-beams.
  • Build a Gauss Rifle | – Grades 6-8, Use magnets and ball bearings to build a rifle based on magnetism. Investigate how many magnet and ball bearing “stages” affect the velocity and distance of the projectile.
  • Smart Medicine Cabinet | – Grades 6-8, Do you know someone who needs to take medication daily? Create a sensor that reminds patients when to take their medication.
  • electromagnet?
  • Grow the Best and the Largest Crystals | – Grades 6-8, Figure out the best temperature for making the largest, purest crystals using water and borax.
  • What’s the Fastest Way to Cool a Soda? | – Grades 6-8, Experiment with different ways to cool a can of soda.  Find out the fastest way to get your tall cold drink.
  • How Much Potential Energy Do Different Nuts Have? | – Grades 6-8, Explore the energy of living things. Prove that different varieties of nuts produce electricity in a series of experiments.
  • How Salty Does the Sea Have to Be for an Egg to Float? | – Grades 6-8, Figure out precisely what concentration of salt in water is required to make an egg float.
  • Washing Detergent & Hydrophobic Soil | – Grades 6-8, Some soils do not absorb water very well.  Find out why and if washing detergent and change their ability to absorb water.
  • Make Your Own Psychrometer | – Grades 6-8, Make a psychrometer to measure relative humidity, then use it to measure RH in a variety of weather conditions.
  • Do Our Storm Drains Keep the Ocean Trash Free? | – Grades 6-8, Test your local grated storm drain inlets to see if they’re up to the task of keeping plastic litter out of your community’s stormwater drainage system. If they’re not, work on improving the design.
  • Can Water Float on Water? | – Grades 6-8, Can liquid water float on liquid water? Investigate how the density of water is affected by its temperature and salinity.
  • What Weather Factors Create Radiation Fog? | – Grades 6-8, Make systematic observations about the weather conditions needed to create radiation fog. Can you forecast when and where it will occur?
  • The Science Behind Tsunamis | – Grades 6-8, Study the effect of water depth on wave velocity. Learn how tsunamis form and create your own simulation model wave tank to generate a tsunami.
  • Killing ‘Vampires’: Saving Money and Power | – Grades 6-8, In this project, you’ll identify electricity “vampires” in your home, such as computer peripherals and electronic equipment, that use power even when not in use. Find out exactly how much energy they use. Use this eye-opening data to help your family save money on electricity.
  • Which Wheels Work Best? | – Grades 6-9, Experiment with how different kinds of wheels affect the speed of a skateboard.  You’ll calculate friction co-efficient and its correlation to velocity.
  • Test the Efficiency of a Solar Cell? | – Grades 6-9, Find out how much of the energy from the sun that reaches a photovoltaic cell is changed over into electricity.  Predict how to position solar cells for maximum conversion.
  • How Acidic Waters Make Rocks Disappear | – Grades 6-10, Soak some limestone rocks in varying amounts of acidic water.  Determine how much acidity is needed to make them dissolve.
  • Seafloor Spreading | – Grades 6-12, Use an oatmeal box and some paper to demonstrate seafloor spreading.
  • Storytelling Alice | – Grades 6-12, Create your own computer-animated story using Carnegie Mellon’s 3D programming software. You’ll learn computer programming with easy-to-use drag and drop tools.
  • Modeling Darcy’s Law | – Grades 6-12, Model the underground movement of water, utilizing Darcy’s Law.
  • Globular Clusters | – Grades 7-10, Explore “star gangs” in the Milky Way and beyond. Globular cluster are compact groups of about a million stars that move around in galaxies. Use statistical data to learn how globular clusters help us better understand the universe.
  • Demonstrating the Separation of Mixtures | – Grades 7-10, Separate recycled objects to illustrate how mixtures are created.
  • Customize Your Own Drum Set! | – Grades 7-10, Build a drum set using household materials, a computer, Scratch, and a PicoBoard. Program your drum set to create a synthesized Hip hop, rap, classical, techno, or electronic drumbeat.
  • Harmful Algal Blooms in the Chesapeake Bay | – Grades 8-12, Harmful algal blooms affect the quality of water and impact people, marine animals, and birds. Study how water quality changes before, during, and after algal blooms.

Science of Learning: Metacognition in Education

What teachers really want during teacher appreciation ....

' src=

Matthew Lynch

Related articles more from author.

science projects for class 7

Physics Apps, Tools, and Resources That We Love

High school science apps, tools, and resources that we love.

science projects for class 7

STEAM Learning in Motion

science projects for class 7

How Early Should Kids Begin STEM Education?

science projects for class 7

This high schooler broke out of his shell with the help of 3D printing

science projects for class 7

21 Amazing STEM Resources for Teachers

science projects for class 7

25,000+ students realised their study abroad dream with us. Take the first step today

Meet top uk universities from the comfort of your home, here’s your new year gift, one app for all your, study abroad needs, start your journey, track your progress, grow with the community and so much more.

science projects for class 7

Verification Code

An OTP has been sent to your registered mobile no. Please verify

science projects for class 7

Thanks for your comment !

Our team will review it before it's shown to our readers.

Leverage Edu

  • School Education /

16 Easy Topics for Science Projects for Class 7 Students

' src=

  • Updated on  
  • Jan 27, 2024

16 Easy Topics for Science Projects for Class 7 Students

Science Projects for Class 7: Practical knowledge is more effective than theoretical knowledge, especially for Science students. Thus, educators need to teach concepts of Science via projects, experiments, and models. However, teachers often hustle to explore project ideas, owing to the limited availability of materials. Also, teachers have to look after student safety while experimenting. Therefore, we have included cost-effective and safe Science Projects for Class 7 students in this blog. Explore and experiment!!

This Blog Includes:

1. solar oven experiment, 2. water filter project, 3. electricity generation from fruits experiment, 4. simple circuit experiment, 5. plant growth in different soils experiment, explore more: 11 ideas for science projects for class 7 students.

Also Read: Science Projects for Class 8 & Working Models

With rising temperatures and deteriorating air quality, it is essential to encourage students to opt for renewable sources of energy. In this attempt to impart knowledge about alternate sources of energy such as solar power, teachers can suggest students create solar ovens. 

To make a solar oven, you can use a cardboard box and line it with reflective material like aluminum foil. Thereafter, create a reflective lid and cover it with a transparent sheet. Once you reach this step, place your cooking vessel inside to harness sunlight for an eco-friendly cooking experience.

Also Read: What is the Full Form of PV?

In addition, Class 7 Science teachers can assign water filter projects to their students to enable them to realize the importance of water conservation. Also, with this project, students will know about the increasing scarcity of water, owing to global warming and water pollution . 

You need sand, gravel, and activated charcoal to create a simple water filter. After gathering the materials, layer them in a plastic bottle. Now, pour dirty water through the layers and observe as impurities are filtered out. Thereafter, you can explain the filtration process in your presentation by showcasing a cost-effective solution for clean water.

Also Read: Essay on Save Water: In 100 Words, 200 Words, 300 Words

science projects for class 7

When the world is dealing with a scarcity of electricity and witnessing the rapid depletion of fossil fuels, it has become essential to seek alternate sources of energy. If you are a school teacher, then it is your responsibility to teach students about the grave crisis and motivate them to use non-exhaustive sources of energy. In this attempt, you can ask students to generate electricity using fruits as a source. 

For this, students can connect fruits such as lemons or potatoes to form a basic electrochemical cell. Now, measure the voltage produced as the fruits’ acids facilitate electron flow, showcasing the potential for harnessing small-scale, eco-friendly power sources.

Also Read: Save Electricity Essay: Format & Samples

science projects for class 7

In addition, as Class 7 students you can explore NCERT Class 7 Science Chapter 10 Electric Current and its Effect through simple circuit experiments. To create a simple circuit, you can connect batteries, wires, and light bulbs to create circuits. Thereafter, you need to investigate how various components impact the flow of electricity. 

With this experiment, you must understand the basics of electricity by observing the illumination of light bulbs when circuits are complete. This hands-on approach helps grasp concepts like conductivity and resistance. Thus, you learn about the components of electrical circuits engagingly and practically.

Also Read: NCERT Solutions and Notes Class 6 Science Chapter 9: Electricity and Circuits

science projects for class 7

Furthermore, while covering NCERT Class 7 Science Chapter 1 Nutrition in Plants teachers can help students learn about different soil types through an experiment. Class 7 teachers can conduct experiments on growing plants in different types of soil to investigate the impact of diverse soil types on plant growth. This can be done by planting identical seeds in various soil compositions. 

Thereafter, monitor and measure the growth of the plants over a designated period.  The findings will enable students to learn about how soil characteristics influence plant development. In addition, students will learn about agricultural practices and understand the relationship between plants and their surrounding environment.

Also Read: Different Types of Plants: By Life Cycle, Seeds & Size

Additionally, teachers can encourage their pupils to participate in the following Science Projects for Class 7 to expand their knowledge about Science.

  • Investigating the density of different liquids by creating a density column.
  • Play different genres of music to plants and observe their growth patterns and overall health.
  • Study the science of aerodynamics by experimenting with different paper airplane designs. 
  • Make a simple balloon rocket to explore the principles of motion.
  • Use a magnet and experiment with different materials to see what is attracted to magnets and explore magnetic fields.
  • Explore the concept of solubility by testing how different candies dissolve in water.
  • Understand static electricity by conducting experiments with materials that create static charges. 
  • Create a model of the solar system to illustrate the relative sizes and distances of planets. 
  • Conduct experiments with baking soda and vinegar to demonstrate chemical reactions. 
  • Set up an experiment with plants exposed to different light conditions (natural sunlight, artificial light, darkness) to observe their growth over a few weeks.
  • Create a mini-ecosystem in a sealed jar to demonstrate the concept of a closed system

Explore NCERT Solution of Class 7:

Ans: Students can try the following Science projects: 1. Solar Oven Experiment 2. Water Filter Project 3. Electricity Generation from Fruits Experiment 4. Simple Circuit Experiment 5. Plant Growth in Different Soils Experiment

Ans: To make a solar oven, you can use a cardboard box and line it with reflective material like aluminum foil. Thereafter, create a reflective lid and cover it with a transparent sheet. 

Ans: Here are the different types of science projects for school students: 1. Models 2. Investigative Projects 3. Demonstration Projects 4. Research Projects 5. Collections

For interesting project ideas and more on Class 7 Science Notes , follow the school education page of Leverage Edu now!!

' src=

Ankita Singh

Ankita is a history enthusiast with a few years of experience in academic writing. Her love for literature and history helps her curate engaging and informative content for education blog. When not writing, she finds peace in analysing historical and political anectodes.

Leave a Reply Cancel reply

Save my name, email, and website in this browser for the next time I comment.

Contact no. *

science projects for class 7

Connect With Us

science projects for class 7

25,000+ students realised their study abroad dream with us. Take the first step today.

science projects for class 7

Resend OTP in

science projects for class 7

Need help with?

Study abroad.

UK, Canada, US & More


Scholarship, Loans & Forex

Country Preference

New Zealand

Which English test are you planning to take?

Which academic test are you planning to take.

Not Sure yet

When are you planning to take the exam?

Already booked my exam slot

Within 2 Months

Want to learn about the test

Which Degree do you wish to pursue?

When do you want to start studying abroad.

January 2024

September 2024

What is your budget to study abroad?

science projects for class 7

How would you describe this article ?

Please rate this article

We would like to hear more.

Have something on your mind?

science projects for class 7

Make your study abroad dream a reality in January 2022 with

science projects for class 7

India's Biggest Virtual University Fair

science projects for class 7

Essex Direct Admission Day

Why attend .

science projects for class 7

Don't Miss Out

Talk to our experts


  • Science Experiments for Class 7


Clear Concepts Easily through Science Experiments for Class 7 with Explanation

Science experiments for Class 7 are a systematic and organized way for students of Class 7 to test different important theories by following specific procedures. The primary objective of experiments is to provide evidence that supports or refutes a scientific hypothesis. By conducting these experiments, one can observe and study the cause-and-effect relationship between different variables and determine the outcomes of specific factors.

 When it comes to an understanding the concepts of science, there are so many ways to do that. But if you want to learn the concepts in the best way, there is no better option than experimenting. This is why we have the best science experiments for Class 7 with explanation . These procedures of experiments can vary depending on the scale and goals of the experiment. They can range from simple experiments, which can be conducted in a classroom, to more complex experiments that require advanced equipment and specialized laboratories.

Indulge in Small Science Experiments for Class 7 and Learn More

The importance of experiments lies in their ability to produce reliable and accurate results that can be analyzed logically. By following a methodical procedure, experiments can eliminate biases or errors and provide scientific evidence supporting or refuting a hypothesis. This helps in advancing scientific knowledge and understanding.

Talking about the Science Experiments for Class 7 , the students can conduct various experiments. These experiments are designed to be age-appropriate and relevant to the curriculum, providing students with a hands-on learning experience. By conducting these experiments, students can develop their scientific skills, critical thinking, and analytical abilities, which can be useful in their future careers and understanding.

Science experiments are an essential aspect of the CBSE Class 7 curriculum, particularly for Science students. These experiments involve hands-on activities that enable students to actively participate in the subject matter and engage more deeply with the concepts being taught. The subject becomes more interesting and easier to comprehend by performing practical experiments.

The small Science Experiments for Class 7 can range from informal comparisons to personal observations, and they aim to demonstrate various concepts in Human Science and Natural Science. The experiments are carefully selected to ensure that all the key concepts are covered thoroughly.

Here we Have the Best Small Science Experiments for Class 7

As mentioned, here are some of the best science experiments for Class 7 .

Electricity is Easy to Produce? 

Salt Water Energy is an experiment that explores electricity generation using simple objects that we use in our daily lives. One common example of this is a battery, which uses chemical reactions to create electrical energy.

In this experiment, students can learn more about the science behind batteries by creating their batteries using salt water and other common materials. They can observe the chemical reactions taking place and learn about how the flow of electrons generates electrical energy.

Rocket Science: is it Easy to Learn?

Rocket Science is another experiment that students can conduct to learn more about a branch of Aeronautical Engineering. In this experiment, students can explore the application of pressure to launch a simple rocket made from materials that are readily available in their households.

They can learn about the principles of thrust, lift, and drag, and how these concepts are important for space exploration and other applications of rocket science.

Rainbow with Density Play

Rainbows are a fascinating natural phenomenon that occurs due to the interaction of light with water droplets in the air. The experiment involves creating a rainbow using different levels of density.

The materials required are transparent glass, water, sugar, and food colouring. The sugar solution is poured into the glass in layers of increasing density, and a light source is directed at the glass from one side. As the light passes through the sugar solution, it gets refracted and dispersed, forming a rainbow.

Creating Clouds is Fun

Clouds are a critical part of the water cycle and play an essential role in regulating the Earth's climate. The experiment on cloud formation is simple and interesting, using just a few things used in daily life. This experiment provides an excellent opportunity for students to learn about the water cycle and the role of clouds in regulating the Earth's climate.

Best and Easy Science Experiments for Class 7 

This is your chance to learn more about the subject with Science experiments for Class 7 . We have the best experiments in line for you to have fun and learn a lot. These experiments are an important part of the curriculum that helps students to develop a deeper understanding of scientific concepts and principles. They provide an opportunity for hands-on learning and make the subject more interesting and engaging for students.


FAQs on Science Experiments for Class 7

1. Why is it important to record data during a science experiment?

It is important to record data during a science experiment because it allows for the accurate analysis and interpretation of the results. Recording data also allows for the replication of the experiment by others, which helps to establish the validity of the results.

2. What should I do if my science experiment doesn't go as planned?

Keep going if your science experiment goes as planned. Analyze what went wrong, consult with your teacher or a science expert, and make any necessary adjustments to the procedure or materials. Remember, even if an experiment doesn't produce the expected results, it can still provide valuable insights and opportunities for learning.

3. How can I apply what I learned from a science experiment to real life?

There are many ways to apply what you learned from a science experiment to real life. You can use the knowledge and skills gained from the experiment to solve real-world problems, make informed decisions, and better understand the natural world around you. This will not only help you understand concepts but also help you establish your career in the best way.

  • Skip to primary navigation
  • Skip to secondary navigation
  • Skip to main content
  • Skip to primary sidebar

An Everyday Story

Baby Gifts, Kids Toys & Motherhood

  • Terms of Services
  • Privacy Policy

30 Ideas For 7th Grade Science Fair Projects

By Beth Roberts | Last Updated May 4, 2022

We’ve compiled some of the best seventh grade science fair projects for your convenience! These science fair project ideas for 7th graders are sure to get you inspired and ready to do go on your own amazing research. We’ve also provided a list of resources you can use at home or in the classroom that will help give you tips on how to start your project, how to present it, and how to write an awesome science fair paper.

science projects for class 7

1. Drive A Balloon-Powered Car

This is an easy to build science fair project that you can even do with your younger brothers and sisters. You will need a high-quality balloon, scissors, tape, paperclip and a ruler.

First you will want to cut off the end of the balloon just above where half of it already has a hole in it. Then thread the tape through the hole so that it is on one side and stick the paperclip through it (close to the bottom of the balloon). Now take your ruler and measure how long it is going to be. When measuring however, you have to make sure that you are going to cut past where half of your paperclip is.

2. Make A Bionic Hand

This project involves making a bionic hand out of rubber and plastic parts and will involve cutting, gluing and soldering. You will want to be careful when cutting this project as you can seriously injure yourself if you cut too close to the plastic so make a good outline before doing it. First you will want to find out how big your hand is going to be. Then draw that on the rubber sheet with a pencil (minus the thumb where it will be). Measure how long your hand is going to be from top to bottom then measure 1/4″ from all 4 sides (you want 4 measurements).

science projects for class 7

3. Do An Experiment On The Physical Properties Of Water

This seventh grade science fair project assumes you already know some things about the physical properties of water. You will want to do this experiment with a partner who also knows some things about water. First you will want to find out whether or not your partner is willing to do this experiment with you and then measure out how many 1/2 cups of water there are in a gallon. Then take a sample of that and measure it again, this time in 1/4 cups. Then you will want to find out how many 4 oz cups are in your sample, then 1 cup and then 2 cups. Now take your results and do what is called an average of those measurements in a data table like this.

science projects for class 7

4. Make A Tornado In A Bottle

This project is somewhat easy but it may take some time to get right . You will want to do this by yourself as you can be seriously injured if you do the wrong thing. First you will want to take your empty soda bottle and rinse out all of the soda from it. Then make sure there is no water left in the bottle from rinsing it then soak it in water for about 20 minutes. After your 20 minutes are up, shake the water out of the bottle, but make sure you leave enough that it will not leak out as soon as you put in your dry ice (if you use dry ice).

science projects for class 7

5. Sorting Jellybeans is a Fun way To Learn about Heredity.

Use the following pointers to sort jellybeans :

a. Jellybeans come in blue, yellow, orange and pink jellybean colors (you can use colored paper and a different color of pen)

b. Jellybeans are round (you can use a ruler)

c. The outside edge of each jellybean is the “seam” that runs down the middle of the jellybean (you will be able to see this clearly after you fill the bag) 

science projects for class 7

6. Allow A Teabag To Float In The Air

This experiment is best done outside. First you will want to take a tea bag and put it in a glass of water , then carefully place it on top of the water in the cup. Make sure there is plenty of room between the cup and the tea bag (this will allow for air to circulate and help it to float). Watch as your teabag floats in mid-air!

science projects for class 7

7. Make A Slime Bomb

This science fair project is best done with an adult or older kid . You will want to find out what chemicals to use for the slime (you can search the internet for that) and then make it. It is best if you have a friend who knows how to make slime with you, too!

science projects for class 7

8. Build A Mini Catapult And Launch Yourself Across The Room

This science fair project can be fun , but it does take some time to get right. You will need several objects to build a mini catapult out of: a small stick, tape, string, paperclips and cans (for launching).

science projects for class 7

9. Make A Vacuum Cleaner Powered Fan

This science fair project is fun , but it can be dangerous. You will want to do this in an area where you do not have many dangerous electrical cords nearby and make sure you can easily get out of the way if it starts to fly off the ground. You will need a fan, a handheld vacuum, scissors and paperclips. First you will want to take apart your handheld vacuum and find the blade part of it. You will want to cut out about 1/2″ of the rubber around the blade. Then tape that on one side of your fan (make sure you have 2 blades facing each other).

science projects for class 7

10. Make A Solar Oven Design.

Students explore thermal energy, reflection, convection, and other physics principles as they experiment with the best way to create a solar oven . They’ll be able to serve up their experiment findings as well as their final reports!

science projects for class 7

11. Make A Rocket Powered By Dry Ice.

This is a science fair project that is best accompanied with someone who has done this before. You will want to make sure you are in an open area where you can easily get out of the way if it does not work.

First you will want to use a craft knife to cut out the bottom part of a soda bottle, making sure that you leave about 1/4″ on the bottom so it does not leak. About halfway up you will want to then cut off another part (this will be used for your air intake) and make sure your intake side is smaller than your exhaust side. Cut as close as possible so that they are seamless together.

science projects for class 7

12. Make Your Own Lava Lamp

This is a fun science fair project that involves melting wax and oil together . You will want to make sure you have something to put this in (a bottle, jar or plastic cup would work). You will need: red food coloring, water, dish detergent, oil (olive or vegetable), and that small globe from a lava lamp you might have lying around the house.

science projects for class 7

13. Take A Look At How The Greenhouse Effect Works.

The greenhouse effect is a natural phenomenon that can be observed in the Earth’s atmosphere on a daily basis. Many people are unaware of how it works and how much it affects our lives. This project encourages students to gain a better understanding of the greenhouse effect and its impact on Earth’s temperature.

science projects for class 7

14. Use Water Color To Make Your Own Kaleidoscope

You can use a permanent marker, paint or crayon. By varying the size and shape of the dots, you can create many different patterns in your result. Study how light is reflected in two and three dimensions of the pattern.

science projects for class 7

15. A Dense Rainbow Is Awe-Inspiring.

Density is the same as mass divided by volume . It is a measure of how tightly packed together molecules of matter are. This project forces students to learn about density in order to obtain a rainbow of monochromatic liquids in graduated cylinders that vary in size. The light source and liquid arrangement allows them to observe the density spectrum of each liquid.

science projects for class 7

16. Use Charcoal To Purify Water.

Water is one of the most important substances on Earth . It keeps us alive, purifies us and is also used to grow crops. Many people do not have access to clean drinking water and this project will help them by guiding them in the creation and use of charcoal for use in a filter for water purification.

science projects for class 7

17. Find Out How Energy Is Transformed.

Energy can be transformed from one form to another , but often loses some of its original properties. This project highlights the effects on a car battery if it is connected to a series of light bulbs and a conducting wire.

science projects for class 7

18. Make Your Own Tesla Coil.

Invented by Nikola Tesla in 1891, the Tesla Coil is an electrical resonant transformer circuit capable of producing extremely high voltages using an air-core transformer based on two spark gaps and two capacitors that allow alternating current through the primary coil to build up an oscillating high voltage in the secondary coil without requiring any type of power source with wires directly attached to it like you would find in conventional coils.

science projects for class 7

19. Coat Some Coins With Copper.

Copper-plating gives a metallic luster and color to many things , such as coins, jewelry, and even small kitchen utensils. In this project, students will use copper sulphate solution to convert a penny into a shiny plated coin.

science projects for class 7

20. Play With Hydraulics To See What You Can Come Up With.

Hydraulics is the study of fluids at rest or in motion and the mechanical devices that are directed by them. This project will allow students to learn about how pressure and force can be used to create movement and power.

21. Biofilms Should Be Collected And Managed.

Biofilms are naturally occurring communities of microorganisms , usually bacteria but also fungi and algae cells. Biofilms are found in almost all natural environments and on most man-made surfaces. They consist of living microbes that can persist for long periods, while producing tranquil points which may be as much as 100 times greater than their own area. This project introduces students to biofilms in order to encourage them to observe how they grow and how they are treated during the experiments.

science projects for class 7

22. Using Experiment Kits On Baking Soda And Vinegar, Make A Volcano.

An erupting volcano is an impressive sight to many people , but they are also extremely dangerous! In this experiment, students will learn about what causes volcanoes to erupt and what type of rocks are needed to build them with their own hands.

science projects for class 7

23. Crystals Are Fun To Grow And Play With.

Crystals are beautiful, fascinating and useful . Students will learn about how crystals grow by experiencing it themselves and observing the different ways they can form, with the help of a variety of experiment kits. This is a hands-on science experiment that encourages students to be creative, experience sensory impact and develop an intuitive understanding of materials as they work with them in real time.

science projects for class 7

24. Explore The Laws Of Motion Using A Spinner.

Gyroscopes are used in many aspects of our everyday lives . You know them as small spinning wheels that come with every electronic device nowadays, but their uses extend from guiding missiles and rockets in flight, to balancing boats and planes, to keeping your computer monitor from falling over on its side.

science projects for class 7

25. Make A Simple Breadboard To Use A Battery And Then Attach LEDs.

A breadboard is a board which allows you to connect multiple electronic components on one side . This project uses simple components to demonstrate the use of electricity in real time. You will need some type of battery and some LEDs, but you can buy these items at a local hardware store in addition to assembling the parts yourself.

science projects for class 7

26. Make A Simple Musical Instrument Using Simple Items.

A musical instrument is any object that is used to make music . In this project, students will use an empty plastic water bottle and some chopsticks to make a simple musical instrument; they will explore the laws of vibration by experimenting with a variety of sounds.

science projects for class 7

27. Make A Paper Airplane Which Can Fly.

A paper airplane is an aircraft designed to fly by being thrown . There are many variations of paper airplanes, but they all rely on the same basic structure and usually only require a piece of paper or thin cardboard. In this project, students will learn about aerodynamics as they build their own paper airplane.

science projects for class 7

28. Build A Storage Bin Using Recycled Materials

Storage bins are used to store clothing or other things that you do not need to use regularly but still want to keep around. This project will help students learn about the different shapes of storage bins and the ability they have to store things while being used in real time.

science projects for class 7

29. Make A Simple Compass.

A compass is a tool used to measure direction and orientation . It is used for navigation and orienteering. This project will help students explore the earth’s magnetic field using simple materials to create their own homemade compass.

science projects for class 7

30. Make A Rock Tumbler And Use It To Polish Rocks.

Polishing can be a valuable skill that provides aesthetic value and shiny, smooth surfaces for your household items. In this experiment, students will explore various sources for polishing rocks, as well as using their own creativity to create dazzling results in real-time during the experiment itself.

science projects for class 7

The field of science is vast and varied, with many different types of projects that students can engage in to learn about the world around them. Science projects can be engaging for students and teachers alike if they are designed to provoke a level of interest and excitement about what students are learning. It is also important to consider that science is not only limited to the four corners of a book or classroom; it is all around us, literally everywhere!

This means that there may be opportunities for children to learn while they are waiting in line at the bank, watching television at home, or even while they are otherwise being entertained.

Uplifting Mayhem

15 Fascinating Science Experiments for 7th Graders

Sharing is caring!

Whether it’s for the science fair, extra credit, or just exploration, there are plenty of fantastic science experiments that seventh graders can do. Here’s a roundup of 15 fascinating science experiments for 7th graders or any child of any age really who is interested in discovering something new!! These are some of the best experiments shared across the web that are definitely worth trying.

15 Fascinating Science Experiments that are sure to be exciting and interesting!! Science experiments for 7th graders and above are sure to be a hit!!

15 Fascinating Science Projects for 7th Graders…..and beyond. 

#1 – check out charcoal’s purification abilities.

This experiment demonstrates how charcoal powder, or activated carbon, purifies water. Charcoal is used in many water filtration systems, but seeing it in action is quite impressive–and all you’ll need is activated carbon, dirty water, and a few jars! Click here for instructions.

#2 – Determine If Mint Is Actually Cooling

Sure, mint always leaves your mouth feeling cooler–but does it actually cool it down? Get the details with this fun experiment that only requires some hot water, a thermometer, and some breath mints to setup. Click here for instructions.

#3 – Experiment with what plants grow best in your home in a homemade grow box

This is such a fun experiment that your kids will love to do! Pick a various amount of seeds to plant and experiment to see which one comes up first, which one produces first etc. The possibilities are endless.  Click here for instructions.

science projects for class 7

#4 – Harness The Power of the Sun

Design the most powerful “solar oven” you can using whatever materials you have on hand–like a pizza box and some aluminum foil. Then, test the effectiveness of a few different designs and make calculations regarding how long it takes each oven, at what outdoor temperature, to melt a bar of chocolate in direct sunlight. Click here for instructions.

#5 – Measure The Effectiveness of Different Insulations

Have you ever noticed how quick ice melts when you carry a cup or glass outside? You may have even noticed that ice seems to melt more slowly when placed in a foam cup compared to a paper or plastic one. In this experiment, you’ll put these materials to the test to measure the effectiveness of each type of insulated cup–ranging from a normal glass to a cups with and without lids. Click here for instructions.

#6 – How Does Color Affect Your Memory

Are certain colors more memorable or stick out more than others? Find out with this awesome science project to see if your brain remembers things better if they are in certain colors!!  Click here for instructions.

#7 – See If You Can Prevent or Delay Rust

Rust is the result of corrosion, which occurs when moisture meets bare metal. It has long been a problem in the automotive industry and countless other fields–so what can we do to prevent or delay it? Test this out by using various products and substances (such as coatings and special paints) on clean metal and then dropping the metal into water to see what rusts the quickest. Click here for instructions.

#8 – Measure The Impact of Caffeine

Caffeine is a known stimulant and it can certainly give you a kick of energy in the morning, but does it really improve your speed or productivity? In this experiment, you’ll get to explore just how caffeine effects the body and if it really has any improvement over speed and efficiency. A typing test is a great way to measure results! Click here for instructions.

I am not an advocate of caffeine on a regular basis but discovering what caffeine does to your body could be an interesting experiment. An experiment could be done with how it affects different people differently. 

#9 – Find Out If Stretching Matters

Everyone tells you to stretch out your muscles for improved flexibility, but does stretching really make a difference? Find out by measuring flexibility before and after various stretches. Click here for instructions.

#10 – Use Cabbage to Test pH

Measuring the alkaline or acidic content of a substance doesn’t require pH strips. In this experiment, you’ll just boil down some red cabbage and use it to measure the pH of various items. The rule is simple: acids turn red and bases turn green! Click here for instructions.

I remember doing this experiment in elementary and then again in High School. Posters were updated and we ended up taking second place in High School…HA HA!! 

#11 – How Much Salt Does it Take to Float in Water???

This is an easy and fun experiment to do with eggs. You will discover how much salt it takes to allow yourself to float in water without sinking. Click Here for Instructions

science projects for class 7

#12 – See What Else Floats (or Sinks)

Most people know that oil floats in water, but the point of this experiment is to see where everything else falls. You’ll just need to take a few different substances and put them in a tall pitcher. Figure out the right order and you can make a rainbow! Click here for instructions.

#13 – Build a Generator from Scratch

Anyone can plug into a potato, but how about building a real electricity generator? With a few basic supplies, you can figure out how to do just that in this exciting science experiment. You can also easily expand upon this experiment by trying various things with the generator you build. Click here for instructions.

#14 -What do Sugary Drinks do to Our Teeth

Find out with this fun Science Experiment what sugary drinks do to your teeth! This experiment may have you think twice about how much sugary drinks you actually consume! Click here for instructions.

#15 – Testing the Effectiveness of Sunscreens

There are so many sunscreens on the market and some work better than others!! This is a fun experiment that can benefit others with your findings!! You can buy little beads that change color when placed under ultra violet light  Click here for instructions.

I hope you have found at least one in this list of science experiments for 7th graders and beyond!! 


At many middle schools and junior high schools, the annual Science Fair is the highlight of the school year. Help your 7th grader select the best science fair idea, then step back and watch your scientist shine!

In this post, we’ve assembled 17 great science fair project ideas for 7th grade. We link each project description to its original source, where you can get more information and step-by-step instructions.


Science Fair Projects on Earthquakes

This site offers several different project ideas related to earthquakes. There are links available for additional information.

Recommended for Grades 7-8.



The Science of Fingerprints by Leonard Bloch

Fingerprints offer a fun way to explore the science of forensics. This site offers some basic experiments and then takes the student on a “Crime scene” investigation using their fingerprint knowledge.



Gender Difference in Resting Pulse Rate of 7 th Graders

This experiment tested to see if gender made a difference in resting heart rates. Follow the scientist’s experiments to see what you conclude.



Do Humans Have a Blind Spot?

This experiment will test if humans have a blind spot in their vision and how to find it.


' title=

Correlation between ring finger length and athletic ability

Does the length of your ring finger determine how accomplished of an athlete you are? This project guides you through the steps to find out.

Recommended for Grades 6-7.


' title=

The Mechanics of Carnival Games

This site gives you the background and instructions for answering this age old carnival question…..Why are the “simple” games at carnivals so hard to win?



Metal Conductivity

Discover which metals are best for a pot or a handle on the pot. This site guides you through the process of scientific discovery.


' title=

Taste and Smell

This experiment tests the relationship between taste and smell. The site offers great guidelines, links for research and much more.

Recommended for Grades 6-8.



Does Chewing Gum Make You Smarter?

This will test the theory that chewing gum will help you perform better on tests and other mental challenges.

Recommended for grades 6-8.


' title=

Which Gear Gives the Best Performance in a Kart Race?

These two scientists give you all of their tips to reproduce this experiment on your own to determine who will win your race.



How to Power a Radio with Solar Power

Learn how to power up a radio using the power of the sun!


' title=

The Science of Tsunamis

Find out what effect the water depth has on a wave’s velocity.

Recommended for Grade 6-8.



Cleaning Coins

This project explores the effectiveness of various cleaning solutions in cleaning tarnished and oxidized coins.



Is There Chemical Contamination in Your Stream or Creek?

Using lettuce as a bioassay, students can test the quality of water. Check out these experiments for your science fair project.



Solar Cell Power Output vs Temperature

In this project you will build a simple circuit and experimental setup to investigate whether the power output of a solar cell changes with ambient temperature.



Does Music have an Effect on Biological Systems?

This experiment will help to determine if music has an effect on the growth rate of vegetation.

Recommended for grades 7-8.


' title=

Exploring Skyscraper Design with Legos

Can you determine the best design for a skyscraper? Test out your hypotheses using Legos.

Source: - science experiments and activities - logo - transparent


Science experiments for class 7 – cbse syllabus.

Activity – 4.1: Is our sense of touch reliable? Activity – 4.2: Reading a thermometer Activity – 4.3: Measuring the body temperature of some persons Activity – 4.4: Measuring the temperature of water with a laboratory thermometer Activity – 4.5: What is the use of kink in clinical thermometer Activity – 4.6: Transfer of heat Activity – 4.7: Heat conductors and insulators Activity – 4.8: Convection of heat in water Activity – 4.9: Transfer of heat by convection in air Activity – 4.10: Which surface absrob more heat, dark or light colour Activity – 4.11: Which clothes are more suitable in summer, dark or light colour

Activity – 15.1: Light gets reflected from plane mirror Activity – 15.2: Image Activity – 15.3: Locating image in a plane mirror Activity – 15.4: Right or Left Activity – 15.5: A concave and a convex mirror Activity – 15.6: Concave mirror forms a real image Activity – 15.7: Image formed by the concave mirror is smaller or larger Activity – 15.8: Convex mirror Activity – 15.9: Convex lens Activity – 15.10: Image from convex lens real or virtual Activity – 15.11: Sunlight – white or coloured Activity – 15.12: A disc with seven colours

Kolb Labs emphasizes the need of experiential learning for kids. Kolb labs offers Science Lab As A Service to schools. We visit schools and perform science experiments for class 7 students within school campus as per CBSE syllabus. Schools need not to worry about setting up science lab and maintaining it. Instructors from Kolb Labs will bring the equipment, material required for each science experiment for class 7 to school and demonstrate the activities as per CBSE syllabus.Experiential learning helps students to learn fast and understand the concepts clearly. More importantly, practical demonstration of science experiments will make learning fun and exciting for 7th class students. Learning by doing will help students immensely to improve their thought process. Kolb Labs encourages to adopt experiential learning at the very young age itself to influence the thought process of young minds towards innovation and creativity.

There are 94 Science experiments for Class 7 as per CBSE Syllabus. Kolb Labs will perform most of the science experiments using the real material. Kolb labs will also use other methods like images, videos, prototypes etc. Kolb labs will encourage class 7 students to perform activities hands-on.

Kolb Labs also helps Class 7 students to prepare science working models and science projects to participate in science fairs. Kolb Labs also encourages 7th class students to come up with new science project ideas with knowledge gained through science activities performed as per CBSE syllabus.


  • CBSE Science Project
  • Science Projects For Class 7

Science Projects for CBSE Class 7

Cbse science projects for class 7.

Science can be simple and is actually only about understanding the world you live in. Science certainly does not need to revolve around complicated formulae , heavy textbooks and students in white lab coats with thick glasses. Doing CBSE science projects are all about testing and getting results, even if you get a surprising result than you might not have expected. Children approach a particular topic, having their questions and interests as a starting point, in an attempt to deal with specific problems and/or everyday instances through a scientific investigation for deeper knowledge and understanding. For the students to get an idea about Science, we have compiled in this article the CBSE Class 7 Science projects and some experiments.

CBSE Science fairs are a wonderful way to get excited about learning, but it requires a lot of hard work. If you want the benefits of participating in a CBSE Science fair but don’t know where to start, this guide is for you. It will provide a brief overview of the most important aspects of a Science fair project of CBSE Class 7 and get you well on your way to having a display at your local fair.


How to make Yoghurt

musical instruments

Guitar String Harmonic Frequencies

For more information on CBSE exams, syllabus and notifications, stay tuned with BYJU’S. At BYJU’S, CBSE students are also provided with the latest sample papers, question papers, worksheets and other exam materials to help them learn in a better way.

Leave a Comment Cancel reply

Your Mobile number and Email id will not be published. Required fields are marked *

Request OTP on Voice Call

Post My Comment

science projects for class 7

  • Share Share

Register with BYJU'S & Download Free PDFs

Register with byju's & watch live videos.



  • Grades 6-12
  • School Leaders

FREE Poetry Worksheet Bundle! Perfect for National Poetry Month.

72 Easy Science Experiments Using Materials You Already Have On Hand

Because science doesn’t have to be complicated.

Easy science experiments including a "naked" egg and "leakproof" bag

If there is one thing that is guaranteed to get your students excited, it’s a good science experiment! While some experiments require expensive lab equipment or dangerous chemicals, there are plenty of cool projects you can do with regular household items. We’ve rounded up a big collection of easy science experiments that anybody can try, and kids are going to love them!

Easy Chemistry Science Experiments

Easy physics science experiments, easy biology and environmental science experiments, easy engineering experiments and stem challenges.

Skittles form a circle around a plate. The colors are bleeding toward the center of the plate. (easy science experiments)

1. Taste the Rainbow

Teach your students about diffusion while creating a beautiful and tasty rainbow! Tip: Have extra Skittles on hand so your class can eat a few!

Learn more: Skittles Diffusion

Colorful rock candy on wooden sticks

2. Crystallize sweet treats

Crystal science experiments teach kids about supersaturated solutions. This one is easy to do at home, and the results are absolutely delicious!

Learn more: Candy Crystals

3. Make a volcano erupt

This classic experiment demonstrates a chemical reaction between baking soda (sodium bicarbonate) and vinegar (acetic acid), which produces carbon dioxide gas, water, and sodium acetate.

Learn more: Best Volcano Experiments

4. Make elephant toothpaste

This fun project uses yeast and a hydrogen peroxide solution to create overflowing “elephant toothpaste.” Tip: Add an extra fun layer by having kids create toothpaste wrappers for plastic bottles.

Girl making an enormous bubble with string and wire

5. Blow the biggest bubbles you can

Add a few simple ingredients to dish soap solution to create the largest bubbles you’ve ever seen! Kids learn about surface tension as they engineer these bubble-blowing wands.

Learn more: Giant Soap Bubbles

Plastic bag full of water with pencils stuck through it

6. Demonstrate the “magic” leakproof bag

All you need is a zip-top plastic bag, sharp pencils, and water to blow your kids’ minds. Once they’re suitably impressed, teach them how the “trick” works by explaining the chemistry of polymers.

Learn more: Leakproof Bag

Several apple slices are shown on a clear plate. There are cards that label what they have been immersed in (including salt water, sugar water, etc.) (easy science experiments)

7. Use apple slices to learn about oxidation

Have students make predictions about what will happen to apple slices when immersed in different liquids, then put those predictions to the test. Have them record their observations.

Learn more: Apple Oxidation

8. Float a marker man

Their eyes will pop out of their heads when you “levitate” a stick figure right off the table! This experiment works due to the insolubility of dry-erase marker ink in water, combined with the lighter density of the ink.

Learn more: Floating Marker Man

Mason jars stacked with their mouths together, with one color of water on the bottom and another color on top

9. Discover density with hot and cold water

There are a lot of easy science experiments you can do with density. This one is extremely simple, involving only hot and cold water and food coloring, but the visuals make it appealing and fun.

Learn more: Layered Water

Clear cylinder layered with various liquids in different colors

10. Layer more liquids

This density demo is a little more complicated, but the effects are spectacular. Slowly layer liquids like honey, dish soap, water, and rubbing alcohol in a glass. Kids will be amazed when the liquids float one on top of the other like magic (except it is really science).

Learn more: Layered Liquids

Giant carbon snake growing out of a tin pan full of sand

11. Grow a carbon sugar snake

Easy science experiments can still have impressive results! This eye-popping chemical reaction demonstration only requires simple supplies like sugar, baking soda, and sand.

Learn more: Carbon Sugar Snake

12. Mix up some slime

Tell kids you’re going to make slime at home, and watch their eyes light up! There are a variety of ways to make slime, so try a few different recipes to find the one you like best.

Two children are shown (without faces) bouncing balls on a white table

13. Make homemade bouncy balls

These homemade bouncy balls are easy to make since all you need is glue, food coloring, borax powder, cornstarch, and warm water. You’ll want to store them inside a container like a plastic egg because they will flatten out over time.

Learn more: Make Your Own Bouncy Balls

Pink sidewalk chalk stick sitting on a paper towel

14. Create eggshell chalk

Eggshells contain calcium, the same material that makes chalk. Grind them up and mix them with flour, water, and food coloring to make your very own sidewalk chalk.

Learn more: Eggshell Chalk

Science student holding a raw egg without a shell

15. Make naked eggs

This is so cool! Use vinegar to dissolve the calcium carbonate in an eggshell to discover the membrane underneath that holds the egg together. Then, use the “naked” egg for another easy science experiment that demonstrates osmosis .

Learn more: Naked Egg Experiment

16. Turn milk into plastic

This sounds a lot more complicated than it is, but don’t be afraid to give it a try. Use simple kitchen supplies to create plastic polymers from plain old milk. Sculpt them into cool shapes when you’re done!

Student using a series of test tubes filled with pink liquid

17. Test pH using cabbage

Teach kids about acids and bases without needing pH test strips! Simply boil some red cabbage and use the resulting water to test various substances—acids turn red and bases turn green.

Learn more: Cabbage pH

Pennies in small cups of liquid labeled coca cola, vinegar + salt, apple juice, water, catsup, and vinegar. Text reads Cleaning Coins Science Experiment. Step by step procedure and explanation.

18. Clean some old coins

Use common household items to make old oxidized coins clean and shiny again in this simple chemistry experiment. Ask kids to predict (hypothesize) which will work best, then expand the learning by doing some research to explain the results.

Learn more: Cleaning Coins

Glass bottle with bowl holding three eggs, small glass with matches sitting on a box of matches, and a yellow plastic straw, against a blue background

19. Pull an egg into a bottle

This classic easy science experiment never fails to delight. Use the power of air pressure to suck a hard-boiled egg into a jar, no hands required.

Learn more: Egg in a Bottle

20. Blow up a balloon (without blowing)

Chances are good you probably did easy science experiments like this when you were in school. The baking soda and vinegar balloon experiment demonstrates the reactions between acids and bases when you fill a bottle with vinegar and a balloon with baking soda.

21 Assemble a DIY lava lamp

This 1970s trend is back—as an easy science experiment! This activity combines acid-base reactions with density for a totally groovy result.

Four colored cups containing different liquids, with an egg in each

22. Explore how sugary drinks affect teeth

The calcium content of eggshells makes them a great stand-in for teeth. Use eggs to explore how soda and juice can stain teeth and wear down the enamel. Expand your learning by trying different toothpaste-and-toothbrush combinations to see how effective they are.

Learn more: Sugar and Teeth Experiment

23. Mummify a hot dog

If your kids are fascinated by the Egyptians, they’ll love learning to mummify a hot dog! No need for canopic jars , just grab some baking soda and get started.

24. Extinguish flames with carbon dioxide

This is a fiery twist on acid-base experiments. Light a candle and talk about what fire needs in order to survive. Then, create an acid-base reaction and “pour” the carbon dioxide to extinguish the flame. The CO2 gas acts like a liquid, suffocating the fire.

I Love You written in lemon juice on a piece of white paper, with lemon half and cotton swabs

25. Send secret messages with invisible ink

Turn your kids into secret agents! Write messages with a paintbrush dipped in lemon juice, then hold the paper over a heat source and watch the invisible become visible as oxidation goes to work.

Learn more: Invisible Ink

26. Create dancing popcorn

This is a fun version of the classic baking soda and vinegar experiment, perfect for the younger crowd. The bubbly mixture causes popcorn to dance around in the water.

Students looking surprised as foamy liquid shoots up out of diet soda bottles

27. Shoot a soda geyser sky-high

You’ve always wondered if this really works, so it’s time to find out for yourself! Kids will marvel at the chemical reaction that sends diet soda shooting high in the air when Mentos are added.

Learn more: Soda Explosion

Empty tea bags burning into ashes

28. Send a teabag flying

Hot air rises, and this experiment can prove it! You’ll want to supervise kids with fire, of course. For more safety, try this one outside.

Learn more: Flying Tea Bags

Magic Milk Experiment How to Plus Free Worksheet

29. Create magic milk

This fun and easy science experiment demonstrates principles related to surface tension, molecular interactions, and fluid dynamics.

Learn more: Magic Milk Experiment

Two side-by-side shots of an upside-down glass over a candle in a bowl of water, with water pulled up into the glass in the second picture

30. Watch the water rise

Learn about Charles’s Law with this simple experiment. As the candle burns, using up oxygen and heating the air in the glass, the water rises as if by magic.

Learn more: Rising Water

Glasses filled with colored water, with paper towels running from one to the next

31. Learn about capillary action

Kids will be amazed as they watch the colored water move from glass to glass, and you’ll love the easy and inexpensive setup. Gather some water, paper towels, and food coloring to teach the scientific magic of capillary action.

Learn more: Capillary Action

A pink balloon has a face drawn on it. It is hovering over a plate with salt and pepper on it

32. Give a balloon a beard

Equally educational and fun, this experiment will teach kids about static electricity using everyday materials. Kids will undoubtedly get a kick out of creating beards on their balloon person!

Learn more: Static Electricity

DIY compass made from a needle floating in water

33. Find your way with a DIY compass

Here’s an old classic that never fails to impress. Magnetize a needle, float it on the water’s surface, and it will always point north.

Learn more: DIY Compass

34. Crush a can using air pressure

Sure, it’s easy to crush a soda can with your bare hands, but what if you could do it without touching it at all? That’s the power of air pressure!

A large piece of cardboard has a white circle in the center with a pencil standing upright in the middle of the circle. Rocks are on all four corners holding it down.

35. Tell time using the sun

While people use clocks or even phones to tell time today, there was a time when a sundial was the best means to do that. Kids will certainly get a kick out of creating their own sundials using everyday materials like cardboard and pencils.

Learn more: Make Your Own Sundial

36. Launch a balloon rocket

Grab balloons, string, straws, and tape, and launch rockets to learn about the laws of motion.

Steel wool sitting in an aluminum tray. The steel wool appears to be on fire.

37. Make sparks with steel wool

All you need is steel wool and a 9-volt battery to perform this science demo that’s bound to make their eyes light up! Kids learn about chain reactions, chemical changes, and more.

Learn more: Steel Wool Electricity

38. Levitate a Ping-Pong ball

Kids will get a kick out of this experiment, which is really all about Bernoulli’s principle. You only need plastic bottles, bendy straws, and Ping-Pong balls to make the science magic happen.

Colored water in a vortex in a plastic bottle

39. Whip up a tornado in a bottle

There are plenty of versions of this classic experiment out there, but we love this one because it sparkles! Kids learn about a vortex and what it takes to create one.

Learn more: Tornado in a Bottle

Homemade barometer using a tin can, rubber band, and ruler

40. Monitor air pressure with a DIY barometer

This simple but effective DIY science project teaches kids about air pressure and meteorology. They’ll have fun tracking and predicting the weather with their very own barometer.

Learn more: DIY Barometer

A child holds up a pice of ice to their eye as if it is a magnifying glass. (easy science experiments)

41. Peer through an ice magnifying glass

Students will certainly get a thrill out of seeing how an everyday object like a piece of ice can be used as a magnifying glass. Be sure to use purified or distilled water since tap water will have impurities in it that will cause distortion.

Learn more: Ice Magnifying Glass

Piece of twine stuck to an ice cube

42. String up some sticky ice

Can you lift an ice cube using just a piece of string? This quick experiment teaches you how. Use a little salt to melt the ice and then refreeze the ice with the string attached.

Learn more: Sticky Ice

Drawing of a hand with the thumb up and a glass of water

43. “Flip” a drawing with water

Light refraction causes some really cool effects, and there are multiple easy science experiments you can do with it. This one uses refraction to “flip” a drawing; you can also try the famous “disappearing penny” trick .

Learn more: Light Refraction With Water

44. Color some flowers

We love how simple this project is to re-create since all you’ll need are some white carnations, food coloring, glasses, and water. The end result is just so beautiful!

Square dish filled with water and glitter, showing how a drop of dish soap repels the glitter

45. Use glitter to fight germs

Everyone knows that glitter is just like germs—it gets everywhere and is so hard to get rid of! Use that to your advantage and show kids how soap fights glitter and germs.

Learn more: Glitter Germs

Plastic bag with clouds and sun drawn on it, with a small amount of blue liquid at the bottom

46. Re-create the water cycle in a bag

You can do so many easy science experiments with a simple zip-top bag. Fill one partway with water and set it on a sunny windowsill to see how the water evaporates up and eventually “rains” down.

Learn more: Water Cycle

Plastic zipper bag tied around leaves on a tree

47. Learn about plant transpiration

Your backyard is a terrific place for easy science experiments. Grab a plastic bag and rubber band to learn how plants get rid of excess water they don’t need, a process known as transpiration.

Learn more: Plant Transpiration

Students sit around a table that has a tin pan filled with blue liquid wiht a feather floating in it (easy science experiments)

48. Clean up an oil spill

Before conducting this experiment, teach your students about engineers who solve environmental problems like oil spills. Then, have your students use provided materials to clean the oil spill from their oceans.

Learn more: Oil Spill

Sixth grade student holding model lungs and diaphragm made from a plastic bottle, duct tape, and balloons

49. Construct a pair of model lungs

Kids get a better understanding of the respiratory system when they build model lungs using a plastic water bottle and some balloons. You can modify the experiment to demonstrate the effects of smoking too.

Learn more: Model Lungs

Child pouring vinegar over a large rock in a bowl

50. Experiment with limestone rocks

Kids  love to collect rocks, and there are plenty of easy science experiments you can do with them. In this one, pour vinegar over a rock to see if it bubbles. If it does, you’ve found limestone!

Learn more: Limestone Experiments

Plastic bottle converted to a homemade rain gauge

51. Turn a bottle into a rain gauge

All you need is a plastic bottle, a ruler, and a permanent marker to make your own rain gauge. Monitor your measurements and see how they stack up against meteorology reports in your area.

Learn more: DIY Rain Gauge

Pile of different colored towels pushed together to create folds like mountains

52. Build up towel mountains

This clever demonstration helps kids understand how some landforms are created. Use layers of towels to represent rock layers and boxes for continents. Then pu-u-u-sh and see what happens!

Learn more: Towel Mountains

Layers of differently colored playdough with straw holes punched throughout all the layers

53. Take a play dough core sample

Learn about the layers of the earth by building them out of Play-Doh, then take a core sample with a straw. ( Love Play-Doh? Get more learning ideas here. )

Learn more: Play Dough Core Sampling

Science student poking holes in the bottom of a paper cup in the shape of a constellation

54. Project the stars on your ceiling

Use the video lesson in the link below to learn why stars are only visible at night. Then create a DIY star projector to explore the concept hands-on.

Learn more: DIY Star Projector

Glass jar of water with shaving cream floating on top, with blue food coloring dripping through, next to a can of shaving cream

55. Make it rain

Use shaving cream and food coloring to simulate clouds and rain. This is an easy science experiment little ones will beg to do over and over.

Learn more: Shaving Cream Rain

56. Blow up your fingerprint

This is such a cool (and easy!) way to look at fingerprint patterns. Inflate a balloon a bit, use some ink to put a fingerprint on it, then blow it up big to see your fingerprint in detail.

Edible DNA model made with Twizzlers, gumdrops, and toothpicks

57. Snack on a DNA model

Twizzlers, gumdrops, and a few toothpicks are all you need to make this super-fun (and yummy!) DNA model.

Learn more: Edible DNA Model

58. Dissect a flower

Take a nature walk and find a flower or two. Then bring them home and take them apart to discover all the different parts of flowers.

DIY smartphone amplifier made from paper cups

59. Craft smartphone speakers

No Bluetooth speaker? No problem! Put together your own from paper cups and toilet paper tubes.

Learn more: Smartphone Speakers

Car made from cardboard with bottlecap wheels and powered by a blue balloon

60. Race a balloon-powered car

Kids will be amazed when they learn they can put together this awesome racer using cardboard and bottle-cap wheels. The balloon-powered “engine” is so much fun too.

Learn more: Balloon-Powered Car

Miniature Ferris Wheel built out of colorful wood craft sticks

61. Build a Ferris wheel

You’ve probably ridden on a Ferris wheel, but can you build one? Stock up on wood craft sticks and find out! Play around with different designs to see which one works best.

Learn more: Craft Stick Ferris Wheel

62. Design a phone stand

There are lots of ways to craft a DIY phone stand, which makes this a perfect creative-thinking STEM challenge.

63. Conduct an egg drop

Put all their engineering skills to the test with an egg drop! Challenge kids to build a container from stuff they find around the house that will protect an egg from a long fall (this is especially fun to do from upper-story windows).

Learn more: Egg Drop Challenge Ideas

Student building a roller coaster of drinking straws for a ping pong ball (Fourth Grade Science)

64. Engineer a drinking-straw roller coaster

STEM challenges are always a hit with kids. We love this one, which only requires basic supplies like drinking straws.

Learn more: Straw Roller Coaster

Outside Science Solar Oven Desert Chica

65. Build a solar oven

Explore the power of the sun when you build your own solar ovens and use them to cook some yummy treats. This experiment takes a little more time and effort, but the results are always impressive. The link below has complete instructions.

Learn more: Solar Oven

Mini Da Vinci bridge made of pencils and rubber bands

66. Build a Da Vinci bridge

There are plenty of bridge-building experiments out there, but this one is unique. It’s inspired by Leonardo da Vinci’s 500-year-old self-supporting wooden bridge. Learn how to build it at the link, and expand your learning by exploring more about Da Vinci himself.

Learn more: Da Vinci Bridge

67. Step through an index card

This is one easy science experiment that never fails to astonish. With carefully placed scissor cuts on an index card, you can make a loop large enough to fit a (small) human body through! Kids will be wowed as they learn about surface area.

Student standing on top of a structure built from cardboard sheets and paper cups

68. Stand on a pile of paper cups

Combine physics and engineering and challenge kids to create a paper cup structure that can support their weight. This is a cool project for aspiring architects.

Learn more: Paper Cup Stack

Child standing on a stepladder dropping a toy attached to a paper parachute

69. Test out parachutes

Gather a variety of materials (try tissues, handkerchiefs, plastic bags, etc.) and see which ones make the best parachutes. You can also find out how they’re affected by windy days or find out which ones work in the rain.

Learn more: Parachute Drop

Students balancing a textbook on top of a pyramid of rolled up newspaper

70. Recycle newspapers into an engineering challenge

It’s amazing how a stack of newspapers can spark such creative engineering. Challenge kids to build a tower, support a book, or even build a chair using only newspaper and tape!

Learn more: Newspaper STEM Challenge

Plastic cup with rubber bands stretched across the opening

71. Use rubber bands to sound out acoustics

Explore the ways that sound waves are affected by what’s around them using a simple rubber band “guitar.” (Kids absolutely love playing with these!)

Learn more: Rubber Band Guitar

Science student pouring water over a cupcake wrapper propped on wood craft sticks

72. Assemble a better umbrella

Challenge students to engineer the best possible umbrella from various household supplies. Encourage them to plan, draw blueprints, and test their creations using the scientific method.

Learn more: Umbrella STEM Challenge

Plus, sign up for our newsletters to get all the latest learning ideas straight to your inbox.

Science doesn't have to be complicated! Try these easy science experiments using items you already have around the house or classroom.

You Might Also Like

Collage of Volcano Science Experiments

15 Red-Hot Volcano Science Experiments and Kits For Classrooms or Science Fairs

Kids will erupt with excitement! Continue Reading

Copyright © 2023. All rights reserved. 5335 Gate Parkway, Jacksonville, FL 32256


Choose Your Test

Sat / act prep online guides and tips, 37 cool science experiments for kids to do at home.

author image

General Education


Are you looking for cool science experiments for kids at home or for class? We've got you covered! We've compiled a list of 37 of the best science experiments for kids that cover areas of science ranging from outer space to dinosaurs to chemical reactions. By doing these easy science experiments, kids will make their own blubber and see how polar bears stay warm, make a rain cloud in a jar to observe how weather changes, create a potato battery that'll really power a lightbulb, and more.

Below are 37 of the best science projects for kids to try. For each one we include a description of the experiment, which area(s) of science it teaches kids about, how difficult it is (easy/medium/hard), how messy it is (low/medium/high), and the materials you need to do the project. Note that experiments labelled "hard" are definitely still doable; they just require more materials or time than most of these other science experiments for kids.

#1: Insect Hotels

  • Teaches Kids About: Zoology
  • Difficulty Level: Medium
  • Messiness Level: Medium

Insect hotels can be as simple (just a few sticks wrapped in a bundle) or as elaborate as you'd like, and they're a great way for kids to get creative making the hotel and then get rewarded by seeing who has moved into the home they built. After creating a hotel with hiding places for bugs, place it outside (near a garden is often a good spot), wait a few days, then check it to see who has occupied the "rooms." You can also use a bug ID book or app to try and identify the visitors.

  • Materials Needed
  • Shadow box or other box with multiple compartments
  • Hot glue gun with glue
  • Sticks, bark, small rocks, dried leaves, bits of yarn/wool, etc.

insect hotel

#2: DIY Lava Lamp

  • Teaches Kids About: Chemical reactions
  • Difficulty Level: Easy

In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp . Oil and water don't mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring. Just add the ingredients together and you'll end up with a homemade lava lamp!

  • Vegetable oil
  • Food coloring
  • Antacid tablets

#3: Magnetic Slime

  • Teaches Kids About: Magnets
  • Messiness Level: High (The slime is black and will slightly dye your fingers when you play with it, but it washes off easily.)

A step up from silly putty and Play-Doh, magnetic slime is fun to play with but also teaches kids about magnets and how they attract and repel each other. Some of the ingredients you aren't likely to have around the house, but they can all be purchased online. After mixing the ingredients together, you can use the neodymium magnet (regular magnets won't be strong enough) to make the magnetic slime move without touching it!

  • Liquid starch
  • Adhesive glue
  • Iron oxide powder
  • Neodymium (rare earth) magnet

#4: Baking Soda Volcanoes

  • Teaches Kids About: Chemical reactions, earth science
  • Difficulty Level: Easy-medium
  • Messiness Level: High

Baking soda volcanoes are one of the classic science projects for kids, and they're also one of the most popular. It's hard to top the excitement of a volcano erupting inside your home. This experiment can also be as simple or in-depth as you like. For the eruption, all you need is baking soda and vinegar (dishwashing detergent adds some extra power to the eruption), but you can make the "volcano" as elaborate and lifelike as you wish.

  • Baking soda
  • Dishwashing detergent
  • Large mason jar or soda bottle
  • Playdough or aluminum foil to make the "volcano"
  • Additional items to place around the volcano (optional)
  • Food coloring (optional)

#5: Tornado in a Jar

  • Teaches Kids About: Weather
  • Messiness Level: Low

This is one of the quick and easy and science experiments for kids to teach them about weather. It only takes about five minutes and a few materials to set up, but once you have it ready you and your kids can create your own miniature tornado whose vortex you can see and the strength of which you can change depending on how quickly you swirl the jar.

  • Glitter (optional)

#6: Colored Celery Experiment

  • Teaches Kids About: Plants

This celery science experiment is another classic science experiment that parents and teachers like because it's easy to do and gives kids a great visual understanding of how transpiration works and how plants get water and nutrients. Just place celery stalks in cups of colored water, wait at least a day, and you'll see the celery leaves take on the color of the water. This happens because celery stalks (like other plants) contain small capillaries that they use to transport water and nutrients throughout the plant.

  • Celery stalks (can also use white flowers or pale-colored cabbage)

#7: Rain Cloud in a Jar

This experiment teaches kids about weather and lets them learn how clouds form by making their own rain cloud . This is definitely a science project that requires adult supervision since it uses boiling water as one of the ingredients, but once you pour the water into a glass jar, the experiment is fast and easy, and you'll be rewarded with a little cloud forming in the jar due to condensation.

  • Glass jar with a lid
  • Boiling water
  • Aerosol hairspray


#8: Edible Rock Candy

  • Teaches Kids About: Crystal formation

It takes about a week for the crystals of this rock candy experiment to form, but once they have you'll be able to eat the results! After creating a sugar solution, you'll fill jars with it and dangle strings in them that'll slowly become covered with the crystals. This experiment involves heating and pouring boiling water, so adult supervision is necessary, once that step is complete, even very young kids will be excited to watch crystals slowly form.

  • Large saucepan
  • Clothespins
  • String or small skewers
  • Candy flavoring (optional)

#9: Water Xylophone

  • Teaches Kids About: Sound waves

With just some basic materials you can create your own musical instrument to teach kids about sound waves. In this water xylophone experiment , you'll fill glass jars with varying levels of water. Once they're all lined up, kids can hit the sides with wooden sticks and see how the itch differs depending on how much water is in the jar (more water=lower pitch, less water=higher pitch). This is because sound waves travel differently depending on how full the jars are with water.

  • Wooden sticks/skewers

#10: Blood Model in a Jar

  • Teaches Kids About: Human biology

This blood model experiment is a great way to get kids to visual what their blood looks like and how complicated it really is. Each ingredient represents a different component of blood (plasma, platelets, red blood cells, etc.), so you just add a certain amount of each to the jar, swirl it around a bit, and you have a model of what your blood looks like.

  • Empty jar or bottle
  • Red cinnamon candies
  • Marshmallows or dry white lima beans
  • White sprinkles

#11: Potato Battery

  • Teaches Kids About: Electricity
  • Difficulty Level: Hard

Did you know that a simple potato can produce enough energy to keep a light bulb lit for over a month? You can create a simple potato battery to show kids. There are kits that provide all the necessary materials and how to set it up, but if you don't purchase one of these it can be a bit trickier to gather everything you need and assemble it correctly. Once it's set though, you'll have your own farm grown battery!

  • Fresh potato
  • Galvanized nail
  • Copper coin


#12: Homemade Pulley

  • Teaches Kids About: Simple machines

This science activity requires some materials you may not already have, but once you've gotten them, the homemade pulley takes only a few minutes to set up, and you can leave the pulley up for your kids to play with all year round. This pulley is best set up outside, but can also be done indoors.

  • Clothesline
  • 2 clothesline pulleys

#13: Light Refraction

  • Teaches Kids About: Light

This light refraction experiment takes only a few minutes to set up and uses basic materials, but it's a great way to show kids how light travels. You'll draw two arrows on a sticky note, stick it to the wall, then fill a clear water bottle with water. As you move the water bottle in front of the arrows, the arrows will appear to change the direction they're pointing. This is because of the refraction that occurs when light passes through materials like water and plastic.

  • Sticky note
  • Transparent water bottle

#14: Nature Journaling

  • Teaches Kids About: Ecology, scientific observation

A nature journal is a great way to encourage kids to be creative and really pay attention to what's going on around them. All you need is a blank journal (you can buy one or make your own) along with something to write with. Then just go outside and encourage your children to write or draw what they notice. This could include descriptions of animals they see, tracings of leaves, a drawing of a beautiful flower, etc. Encourage your kids to ask questions about what they observe (Why do birds need to build nests? Why is this flower so brightly colored?) and explain to them that scientists collect research by doing exactly what they're doing now.

  • Blank journal or notebook
  • Pens/pencils/crayons/markers
  • Tape or glue for adding items to the journal

#15: DIY Solar Oven

  • Teaches Kids About: Solar energy

This homemade solar oven definitely requires some adult help to set up, but after it's ready you'll have your own mini oven that uses energy from the sun to make s'mores or melt cheese on pizza. While the food is cooking, you can explain to kids how the oven uses the sun's rays to heat the food.

  • Aluminum foil
  • Knife or box cutter
  • Permanent marker
  • Plastic cling wrap
  • Black construction paper


#16: Animal Blubber Simulation

  • Teaches Kids About: Ecology, zoology

If your kids are curious about how animals like polar bears and seals stay warm in polar climates, you can go beyond just explaining it to them; you can actually have them make some of their own blubber and test it out. After you've filled up a large bowl with ice water and let it sit for a few minutes to get really cold, have your kids dip a bare hand in and see how many seconds they can last before their hand gets too cold. Next, coat one of their fingers in shortening and repeat the experiment. Your child will notice that, with the shortening acting like a protective layer of blubber, they don't feel the cold water nearly as much.

  • Bowl of ice water

#17: Static Electricity Butterfly

This experiment is a great way for young kids to learn about static electricity, and it's more fun and visual than just having them rub balloons against their heads. First you'll create a butterfly, using thick paper (such as cardstock) for the body and tissue paper for the wings. Then, blow up the balloon, have the kids rub it against their head for a few seconds, then move the balloon to just above the butterfly's wings. The wings will move towards the balloon due to static electricity, and it'll look like the butterfly is flying.

  • Tissue paper
  • Thick paper
  • Glue stick/glue

#18: Edible Double Helix

  • Teaches Kids About: Genetics

If your kids are learning about genetics, you can do this edible double helix craft to show them how DNA is formed, what its different parts are, and what it looks like. The licorice will form the sides or backbone of the DNA and each color of marshmallow will represent one of the four chemical bases. Kids will be able to see that only certain chemical bases pair with each other.

  • 2 pieces of licorice
  • 12 toothpicks
  • Small marshmallows in 4 colors (9 of each color)
  • 5 paperclips

#19: Leak-Proof Bag

  • Teaches Kids About: Molecules, plastics

This is an easy experiment that'll appeal to kids of a variety of ages. Just take a zip-lock bag, fill it about ⅔ of the way with water, and close the top. Next, poke a few sharp objects (like bamboo skewers or sharp pencils) through one end and out the other. At this point you may want to dangle the bag above your child's head, but no need to worry about spills because the bag won't leak? Why not? It's because the plastic used to make zip-lock bags is made of polymers, or long chains of molecules that'll quickly join back together when they're forced apart.

  • Zip-lock bags
  • Objects with sharp ends (pencils, bamboo skewers, etc.)


#20: How Do Leaves Breathe?

  • Teaches Kids About: Plant science

It takes a few hours to see the results of this leaf experiment , but it couldn't be easier to set up, and kids will love to see a leaf actually "breathing." Just get a large-ish leaf, place it in a bowl (glass works best so you can see everything) filled with water, place a small rock on the leaf to weigh it down, and leave it somewhere sunny. Come back in a few hours and you'll see little bubbles in the water created when the leaf releases the oxygen it created during photosynthesis.

  • Large bowl (preferably glass)
  • Magnifying glass (optional)

#21: Popsicle Stick Catapults

Kids will love shooting pom poms out of these homemade popsicle stick catapults . After assembling the catapults out of popsicle sticks, rubber bands, and plastic spoons, they're ready to launch pom poms or other lightweight objects. To teach kids about simple machines, you can ask them about how they think the catapults work, what they should do to make the pom poms go a farther/shorter distance, and how the catapult could be made more powerful.

  • Popsicle sticks
  • Rubber bands
  • Plastic spoons
  • Paint (optional)

#22: Elephant Toothpaste

You won't want to do this experiment near anything that's difficult to clean (outside may be best), but kids will love seeing this " elephant toothpaste " crazily overflowing the bottle and oozing everywhere. Pour the hydrogen peroxide, food coloring, and dishwashing soap into the bottle, and in the cup mix the yeast packet with some warm water for about 30 seconds. Then, add the yeast mixture to the bottle, stand back, and watch the solution become a massive foamy mixture that pours out of the bottle! The "toothpaste" is formed when the yeast removed the oxygen bubbles from the hydrogen peroxide which created foam. This is an exothermic reaction, and it creates heat as well as foam (you can have kids notice that the bottle became warm as the reaction occurred).

  • Clean 16-oz soda bottle
  • 6% solution of hydrogen peroxide
  • 1 packet of dry yeast
  • Dishwashing soap

#23: How Do Penguins Stay Dry?

Penguins, and many other birds, have special oil-producing glands that coat their feathers with a protective layer that causes water to slide right off them, keeping them warm and dry. You can demonstrate this to kids with this penguin craft by having them color a picture of a penguin with crayons, then spraying the picture with water. The wax from the crayons will have created a protective layer like the oil actual birds coat themselves with, and the paper won't absorb the water.

  • Penguin image (included in link)
  • Spray bottle
  • Blue food coloring (optional)


#24: Rock Weathering Experiment

  • Teaches Kids About: Geology

This mechanical weathering experiment teaches kids why and how rocks break down or erode. Take two pieces of clay, form them into balls, and wrap them in plastic wrap. Then, leave one out while placing the other in the freezer overnight. The next day, unwrap and compare them. You can repeat freezing the one piece of clay every night for several days to see how much more cracked and weathered it gets than the piece of clay that wasn't frozen. It may even begin to crumble. This weathering also happens to rocks when they are subjected to extreme temperatures, and it's one of the causes of erosion.

  • Plastic wrap

#25: Saltwater Density

  • Teaches Kids About: Water density

For this saltwater density experiment , you'll fill four clear glasses with water, then add salt to one glass, sugar to one glass, and baking soda to one glass, leaving one glass with just water. Then, float small plastic pieces or grapes in each of the glasses and observe whether they float or not. Saltwater is denser than freshwater, which means some objects may float in saltwater that would sink in freshwater. You can use this experiment to teach kids about the ocean and other bodies of saltwater, such as the Dead Sea, which is so salty people can easily float on top of it.

  • Four clear glasses
  • Lightweight plastic objects or small grapes

#26: Starburst Rock Cycle

With just a package of Starbursts and a few other materials, you can create models of each of the three rock types: igneous, sedimentary, and metamorphic. Sedimentary "rocks" will be created by pressing thin layers of Starbursts together, metamorphic by heating and pressing Starbursts, and igneous by applying high levels of heat to the Starbursts. Kids will learn how different types of rocks are forms and how the three rock types look different from each other.

  • Toaster oven

#27: Inertia Wagon Experiment

  • Teaches Kids About: Inertia

This simple experiment teaches kids about inertia (as well as the importance of seatbelts!). Take a small wagon, fill it with a tall stack of books, then have one of your children pull it around then stop abruptly. They won't be able to suddenly stop the wagon without the stack of books falling. You can have the kids predict which direction they think the books will fall and explain that this happens because of inertia, or Newton's first law.

  • Stack of books

#28: Dinosaur Tracks

  • Teaches Kids About: Paleontology

How are some dinosaur tracks still visible millions of years later? By mixing together several ingredients, you'll get a claylike mixture you can press your hands/feet or dinosaur models into to make dinosaur track imprints . The mixture will harden and the imprints will remain, showing kids how dinosaur (and early human) tracks can stay in rock for such a long period of time.

  • Used coffee grounds
  • Wooden spoon
  • Rolling pin

#29: Sidewalk Constellations

  • Teaches Kids About: Astronomy

If you do this sidewalk constellation craft , you'll be able to see the Big Dipper and Orion's Belt in the daylight. On the sidewalk, have kids draw the lines of constellations (using constellation diagrams for guidance) and place stones where the stars are. You can then look at astronomy charts to see where the constellations they drew will be in the sky.

  • Sidewalk chalk
  • Small stones
  • Diagrams of constellations

#30: Lung Model

By building a lung model , you can teach kids about respiration and how their lungs work. After cutting off the bottom of a plastic bottle, you'll stretch a balloon around the opened end and insert another balloon through the mouth of the bottle. You'll then push a straw through the neck of the bottle and secure it with a rubber band and play dough. By blowing into the straw, the balloons will inflate then deflate, similar to how our lungs work.

  • Plastic bottle
  • Rubber band


#31: Homemade Dinosaur Bones

By mixing just flour, salt, and water, you'll create a basic salt dough that'll harden when baked. You can use this dough to make homemade dinosaur bones and teach kids about paleontology. You can use books or diagrams to learn how different dinosaur bones were shaped, and you can even bury the bones in a sandpit or something similar and then excavate them the way real paleontologists do.

  • Images of dinosaur bones

#32: Clay and Toothpick Molecules

There are many variations on homemade molecule science crafts . This one uses clay and toothpicks, although gumdrops or even small pieces of fruit like grapes can be used in place of clay. Roll the clay into balls and use molecule diagrams to attach the clay to toothpicks in the shape of the molecules. Kids can make numerous types of molecules and learn how atoms bond together to form molecules.

  • Clay or gumdrops (in four colors)
  • Diagrams of molecules

#33: Articulated Hand Model

By creating an articulated hand model , you can teach kids about bones, joints, and how our hands are able to move in many ways and accomplish so many different tasks. After creating a hand out of thin foam, kids will cut straws to represent the different bones in the hand and glue them to the fingers of the hand models. You'll then thread yarn (which represents tendons) through the straws, stabilize the model with a chopstick or other small stick, and end up with a hand model that moves and bends the way actual human hands do.

  • Straws (paper work best)
  • Twine or yarn

#34: Solar Energy Experiment

  • Teaches Kids About: Solar energy, light rays

This solar energy science experiment will teach kids about solar energy and how different colors absorb different amounts of energy. In a sunny spot outside, place six colored pieces of paper next to each other, and place an ice cube in the middle of each paper. Then, observe how quickly each of the ice cubes melt. The ice cube on the black piece of paper will melt fastest since black absorbs the most light (all the light ray colors), while the ice cube on the white paper will melt slowest since white absorbs the least light (it instead reflects light). You can then explain why certain colors look the way they do. (Colors besides black and white absorb all light except for the one ray color they reflect; this is the color they appear to us.)

  • 6 squares of differently colored paper/cardstock (must include black paper and white paper)

#35: How to Make Lightning

  • Teaches Kids About: Electricity, weather

You don't need a storm to see lightning; you can actually create your own lightning at home . For younger kids this experiment requires adult help and supervision. You'll stick a thumbtack through the bottom of an aluminum tray, then stick the pencil eraser to the pushpin. You'll then rub the piece of wool over the aluminum tray, and then set the tray on the Styrofoam, where it'll create a small spark/tiny bolt of lightning!

  • Pencil with eraser
  • Aluminum tray or pie tin
  • Styrofoam tray

#36: Tie-Dyed Milk

  • Teaches Kids About: Surface tension

For this magic milk experiment , partly fill a shallow dish with milk, then add a one drop of each food coloring color to different parts of the milk. The food coloring will mostly stay where you placed it. Next, carefully add one drop of dish soap to the middle of the milk. It'll cause the food coloring to stream through the milk and away from the dish soap. This is because the dish soap breaks up the surface tension of the milk by dissolving the milk's fat molecules.

  • Shallow dish
  • Milk (high-fat works best)


#37: How Do Stalactites Form?

Have you ever gone into a cave and seen huge stalactites hanging from the top of the cave? Stalactites are formed by dripping water. The water is filled with particles which slowly accumulate and harden over the years, forming stalactites. You can recreate that process with this stalactite experiment . By mixing a baking soda solution, dipping a piece of wool yarn in the jar and running it to another jar, you'll be able to observe baking soda particles forming and hardening along the yarn, similar to how stalactites grow.

  • Safety pins
  • 2 glass jars

Summary: Cool Science Experiments for Kids

Any one of these simple science experiments for kids can get children learning and excited about science. You can choose a science experiment based on your child's specific interest or what they're currently learning about, or you can do an experiment on an entirely new topic to expand their learning and teach them about a new area of science. From easy science experiments for kids to the more challenging ones, these will all help kids have fun and learn more about science.

What's Next?

Are you also interested in pipe cleaner crafts for kids? We have a guide to some of the best pipe cleaner crafts to try!

Looking for multiple different slime recipes? We tell you how to make slimes without borax and without glue as well as how to craft the ultimate super slime .

Want to learn more about clouds? Learn how to identify every cloud in the sky with our guide to the 10 types of clouds .

Want to know the fastest and easiest ways to convert between Fahrenheit and Celsius? We've got you covered! Check out our guide to the best ways to convert Celsius to Fahrenheit (or vice versa) .

author image

Christine graduated from Michigan State University with degrees in Environmental Biology and Geography and received her Master's from Duke University. In high school she scored in the 99th percentile on the SAT and was named a National Merit Finalist. She has taught English and biology in several countries.

Student and Parent Forum

Our new student and parent forum, at , allow you to interact with your peers and the PrepScholar staff. See how other students and parents are navigating high school, college, and the college admissions process. Ask questions; get answers.

Join the Conversation

Ask a Question Below

Have any questions about this article or other topics? Ask below and we'll reply!

Improve With Our Famous Guides

  • For All Students

The 5 Strategies You Must Be Using to Improve 160+ SAT Points

How to Get a Perfect 1600, by a Perfect Scorer

Series: How to Get 800 on Each SAT Section:

Score 800 on SAT Math

Score 800 on SAT Reading

Score 800 on SAT Writing

Series: How to Get to 600 on Each SAT Section:

Score 600 on SAT Math

Score 600 on SAT Reading

Score 600 on SAT Writing

Free Complete Official SAT Practice Tests

What SAT Target Score Should You Be Aiming For?

15 Strategies to Improve Your SAT Essay

The 5 Strategies You Must Be Using to Improve 4+ ACT Points

How to Get a Perfect 36 ACT, by a Perfect Scorer

Series: How to Get 36 on Each ACT Section:

36 on ACT English

36 on ACT Math

36 on ACT Reading

36 on ACT Science

Series: How to Get to 24 on Each ACT Section:

24 on ACT English

24 on ACT Math

24 on ACT Reading

24 on ACT Science

What ACT target score should you be aiming for?

ACT Vocabulary You Must Know

ACT Writing: 15 Tips to Raise Your Essay Score

How to Get Into Harvard and the Ivy League

How to Get a Perfect 4.0 GPA

How to Write an Amazing College Essay

What Exactly Are Colleges Looking For?

Is the ACT easier than the SAT? A Comprehensive Guide

Should you retake your SAT or ACT?

When should you take the SAT or ACT?

Stay Informed

science projects for class 7

Get the latest articles and test prep tips!

Looking for Graduate School Test Prep?

Check out our top-rated graduate blogs here:

GRE Online Prep Blog

GMAT Online Prep Blog

TOEFL Online Prep Blog

Holly R. "I am absolutely overjoyed and cannot thank you enough for helping me!”

Social learning Network

Default error msg

Forgot password?


By clicking Agree & join, you agree to the Study24x7 User Agreement,Privacy Policy and Terms T&C.

New to Study24X7 ?

Already have an account ?

Change Password


Best topic ideas for class 7 Science projects

  • Get a link Click to copy

science projects for class 7

Science is considered as one of the difficult subjects including both theory and practical application. Students of Class 7th learn to make working models and understand it’s applications. There are various science projects for class 7th students that are given by the teachers. Students are allowed to make a group of 3 – 5 members to coordinate accordingly and make the model. These models are in a form of the diagram that the students must have seen as a kid in various commercials.  

The students working together develop skills like teamwork, leadership skills, synchronization and much more. These skills help the students in the long run for other future prospects. These scientific models somehow explain the behaviour of the systems in the real world i.e. how do they react to natural calamities or how are they made and used. 

These models are made to make the concepts easier. Students understand whatever they have learnt in the classroom lectures through creating these working models. Students enjoy making such models with an understanding of interesting facts from subjects like Physics, Chemistry, Biology, Earth and many more. Below are some of the working models that students make in order to simplify the concepts of science. 

List of Science Working Models for Class 7th 

There are various models provided to the students so that they can understand and learn various difficult concepts. Below is the list of some science models that students are given.

  • Water Turbine Project
  • Vacuum Cleaner Project
  • Hand Generator Project
  • Windmill Project
  • Pinhole Camera Project
  • Potato Battery Project
  • Periscope Project
  • Motorized Windmill Project
  • Biodiesel Project
  • Solar Cell Project
  • Cotton Candy Machine
  • Wind Turbine Project
  • Working Model of Heart
  • Biogas Plant Project

science projects for class 7

These are some of the winning science fair projects for 7th grade . Students can learn and explain to their team members or peers about how the model works and what it represents. These models are a part of exams and students are evaluated in the exam based on this project.      

Science projects for class 7th working models

There are other working models too apart from the ones mentioned above. These science projects lead to a better understanding of various theoretical concepts. Below are some other projects that students might be willing to make. 

  • Small bar magnets
  • Motor model kit
  • Vegetable battery kit
  • Wind energy house
  • Simple Solar House
  • Wind Energy House
  • Solar System
  • Eclipse Models
  • Hydropower House
  • Automatic Street Light Model
  • Rain Harvesting Model
  • House with Burglar Exam
  • Solar Street Light Model
  • Automatic Water level Controller model
  • Rain Alarm with house
  • Wind City Model
  • Industry with Solar Power
  • Dam working model
  • Hand Generator Model with Bulb
  • Electric Bell Model Kit
  • Energy from Waste
  • Brain Model
  • Urinary Model
  • Blood Circulation in Human Body Model

These are some of the science projects for Class 7th in science exhibition . Students can take part in various science competitions and exhibitions and win several prizes.   

Working Model of Science for Class 7th 

There are several other working models in science that are easy and understandable. These models include:

1. Greenhouse Effect:

This model is made by the students to depict how various gases and other surfaces traps the heat and leads to the depletion of the Ozone layer that results in increased pollution. This experiment shows the effect of the greenhouse on the environment. 

2. UV Protection:

UV Rays are harmful to the human body along with the environment. The science models are made to protect the human body and the environment. Students learn about such concepts while working through these models.

3. Periscope:

A periscope is an instrument that is used to look at distant objects through a hidden position. Students make such working models and explain them to their peers. These models are used in submarines to see the surface above the water. A periscope is a flexible instrument that can be rotated in all directions. 

These are some other science projects for Class 7th students. Students can inculcate various skills while working through the process of making these models. The students can learn the practical application of the concepts learned while making such models. These are some of the best topics for class 7th science projects. Thus, these working models make certain concepts easy to understand.  

Related Article:

Essay topic ideas for class 7 students

science projects for class 7

Best Study timetable for class 8th students

science projects for class 7


science projects for class 7

The best daily routine for class 8 students

science projects for class 7


By cbse class 10.

  • 1307 Enrollment
  • Validity Unlimited

science projects for class 7


By cbse class 7.

  • 619 Enrollment

science projects for class 7

Talent Enhancement Skill Test -Class 7th

By talent in you.

  • 753 Enrollment

science projects for class 7

Class 10 Hindi

By cbse study materials.

  • 720 Enrollment
  • Validity 11 month,26 days

science projects for class 7


  • 968 Enrollment

Cabinet declared which day as ‘National Space Day’ in India?


which are the following triple entente

When government of india act was passed by the british, what is the name of the phenomenon that causes the earth's magnetic poles to switch places over geological time scales, which of the following interesting facts about our earth is true, which statement is true for the reflection of light,  the ratio of the number of chromosomes in a human zygote and a human sperm is, aids is a deadly disease which is caused by, reproduction is essential for living organisms in order to, fruits are formed from the, check these related articles on study24x7.

Is tuition necessary in class 10 CBSE?

The Central Board of Secondary Education (CBSE) conducts examinations for 10th and 12th along with various entrance examinations like AIEEE, AIPMT and

science projects for class 7



Best Reference Books for Class - 10th

Reference books help in getting useful information for students who aspire to prepare for their board exams. There are different reference books for v


Mother is the heartbeat in the home and without her there seems to be no heartthrob. Mothers are like glue...

science projects for class 7

By  Tripti Gautam


Bad effects of watching Television and playing video games

Television and Video Games have become an important part of a kid’s life. Children are always seen fidgeting on mobile phones, watching television or

science projects for class 7



Knowledge of Basic Arithmetic

Basic arithmetic includes addition, subtraction, multiplication, and division. This is elementary school mathematics, so it is very essential to maste

science projects for class 7

By  Class 10th Mathematics by AK S


NTSE Syllabus: Section-by-section syllabus is available here!!

NTSE Syllabus: Students should know that NTSE Stage 1 will include questions from their modified school board. This year, many councils decided to

science projects for class 7

By  Study24x7


Avoid these 10 Poor Habits when Studying

Everyone has a different way of studying. While some behaviors are beneficial as students go along the educational ladder (such as through online cour

science projects for class 7

By  Edubabble LLP



It is a fact that we all know and agree that an organized schedule is the key to success and a better living.  But the question remains 'Do we all f

science projects for class 7

By  Educational Guide


  • Campus Hiring
  • Privacy Policy
  • Terms of Use

© 2024 Edubabble Learning Pvt Ltd.


The Effects of Climate Change

The effects of human-caused global warming are happening now, are irreversible for people alive today, and will worsen as long as humans add greenhouse gases to the atmosphere.

science projects for class 7

  • We already see effects scientists predicted, such as the loss of sea ice, melting glaciers and ice sheets, sea level rise, and more intense heat waves.
  • Scientists predict global temperature increases from human-made greenhouse gases will continue. Severe weather damage will also increase and intensify.

Earth Will Continue to Warm and the Effects Will Be Profound


Global climate change is not a future problem. Changes to Earth’s climate driven by increased human emissions of heat-trapping greenhouse gases are already having widespread effects on the environment: glaciers and ice sheets are shrinking, river and lake ice is breaking up earlier, plant and animal geographic ranges are shifting, and plants and trees are blooming sooner.

Effects that scientists had long predicted would result from global climate change are now occurring, such as sea ice loss, accelerated sea level rise, and longer, more intense heat waves.

The magnitude and rate of climate change and associated risks depend strongly on near-term mitigation and adaptation actions, and projected adverse impacts and related losses and damages escalate with every increment of global warming.

science projects for class 7

Intergovernmental Panel on Climate Change

Some changes (such as droughts, wildfires, and extreme rainfall) are happening faster than scientists previously assessed. In fact, according to the Intergovernmental Panel on Climate Change (IPCC) — the United Nations body established to assess the science related to climate change — modern humans have never before seen the observed changes in our global climate, and some of these changes are irreversible over the next hundreds to thousands of years.

Scientists have high confidence that global temperatures will continue to rise for many decades, mainly due to greenhouse gases produced by human activities.

The IPCC’s Sixth Assessment report, published in 2021, found that human emissions of heat-trapping gases have already warmed the climate by nearly 2 degrees Fahrenheit (1.1 degrees Celsius) since 1850-1900. 1 The global average temperature is expected to reach or exceed 1.5 degrees C (about 3 degrees F) within the next few decades. These changes will affect all regions of Earth.

The severity of effects caused by climate change will depend on the path of future human activities. More greenhouse gas emissions will lead to more climate extremes and widespread damaging effects across our planet. However, those future effects depend on the total amount of carbon dioxide we emit. So, if we can reduce emissions, we may avoid some of the worst effects.

The scientific evidence is unequivocal: climate change is a threat to human wellbeing and the health of the planet. Any further delay in concerted global action will miss the brief, rapidly closing window to secure a liveable future.

Here are some of the expected effects of global climate change on the United States, according to the Third and Fourth National Climate Assessment Reports:

Future effects of global climate change in the United States:

sea level rise

U.S. Sea Level Likely to Rise 1 to 6.6 Feet by 2100

Global sea level has risen about 8 inches (0.2 meters) since reliable record-keeping began in 1880. By 2100, scientists project that it will rise at least another foot (0.3 meters), but possibly as high as 6.6 feet (2 meters) in a high-emissions scenario. Sea level is rising because of added water from melting land ice and the expansion of seawater as it warms. Image credit: Creative Commons Attribution-Share Alike 4.0

Sun shining brightly over misty mountains.

Climate Changes Will Continue Through This Century and Beyond

Global climate is projected to continue warming over this century and beyond. Image credit: Khagani Hasanov, Creative Commons Attribution-Share Alike 3.0

Satellite image of a hurricane.

Hurricanes Will Become Stronger and More Intense

Scientists project that hurricane-associated storm intensity and rainfall rates will increase as the climate continues to warm. Image credit: NASA

science projects for class 7

More Droughts and Heat Waves

Droughts in the Southwest and heat waves (periods of abnormally hot weather lasting days to weeks) are projected to become more intense, and cold waves less intense and less frequent. Image credit: NOAA

2013 Rim Fire

Longer Wildfire Season

Warming temperatures have extended and intensified wildfire season in the West, where long-term drought in the region has heightened the risk of fires. Scientists estimate that human-caused climate change has already doubled the area of forest burned in recent decades. By around 2050, the amount of land consumed by wildfires in Western states is projected to further increase by two to six times. Even in traditionally rainy regions like the Southeast, wildfires are projected to increase by about 30%.

Changes in Precipitation Patterns

Climate change is having an uneven effect on precipitation (rain and snow) in the United States, with some locations experiencing increased precipitation and flooding, while others suffer from drought. On average, more winter and spring precipitation is projected for the northern United States, and less for the Southwest, over this century. Image credit: Marvin Nauman/FEMA

Crop field.

Frost-Free Season (and Growing Season) will Lengthen

The length of the frost-free season, and the corresponding growing season, has been increasing since the 1980s, with the largest increases occurring in the western United States. Across the United States, the growing season is projected to continue to lengthen, which will affect ecosystems and agriculture.

Heatmap showing scorching temperatures in U.S. West

Global Temperatures Will Continue to Rise

Summer of 2023 was Earth's hottest summer on record, 0.41 degrees Fahrenheit (F) (0.23 degrees Celsius (C)) warmer than any other summer in NASA’s record and 2.1 degrees F (1.2 C) warmer than the average summer between 1951 and 1980. Image credit: NASA

Satellite map of arctic sea ice.

Arctic Is Very Likely to Become Ice-Free

Sea ice cover in the Arctic Ocean is expected to continue decreasing, and the Arctic Ocean will very likely become essentially ice-free in late summer if current projections hold. This change is expected to occur before mid-century.

U.S. Regional Effects

Climate change is bringing different types of challenges to each region of the country. Some of the current and future impacts are summarized below. These findings are from the Third 3 and Fourth 4 National Climate Assessment Reports, released by the U.S. Global Change Research Program .

  • Northeast. Heat waves, heavy downpours, and sea level rise pose increasing challenges to many aspects of life in the Northeast. Infrastructure, agriculture, fisheries, and ecosystems will be increasingly compromised. Farmers can explore new crop options, but these adaptations are not cost- or risk-free. Moreover, adaptive capacity , which varies throughout the region, could be overwhelmed by a changing climate. Many states and cities are beginning to incorporate climate change into their planning.
  • Northwest. Changes in the timing of peak flows in rivers and streams are reducing water supplies and worsening competing demands for water. Sea level rise, erosion, flooding, risks to infrastructure, and increasing ocean acidity pose major threats. Increasing wildfire incidence and severity, heat waves, insect outbreaks, and tree diseases are causing widespread forest die-off.
  • Southeast. Sea level rise poses widespread and continuing threats to the region’s economy and environment. Extreme heat will affect health, energy, agriculture, and more. Decreased water availability will have economic and environmental impacts.
  • Midwest. Extreme heat, heavy downpours, and flooding will affect infrastructure, health, agriculture, forestry, transportation, air and water quality, and more. Climate change will also worsen a range of risks to the Great Lakes.
  • Southwest. Climate change has caused increased heat, drought, and insect outbreaks. In turn, these changes have made wildfires more numerous and severe. The warming climate has also caused a decline in water supplies, reduced agricultural yields, and triggered heat-related health impacts in cities. In coastal areas, flooding and erosion are additional concerns.

1. IPCC 2021, Climate Change 2021: The Physical Science Basis , the Working Group I contribution to the Sixth Assessment Report, Cambridge University Press, Cambridge, UK.

2. IPCC, 2013: Summary for Policymakers. In: Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change [Stocker, T.F., D. Qin, G.-K. Plattner, M. Tignor, S.K. Allen, J. Boschung, A. Nauels, Y. Xia, V. Bex and P.M. Midgley (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA.

3. USGCRP 2014, Third Climate Assessment .

4. USGCRP 2017, Fourth Climate Assessment .

Related Resources

science projects for class 7

A Degree of Difference

So, the Earth's average temperature has increased about 2 degrees Fahrenheit during the 20th century. What's the big deal?

science projects for class 7

What’s the difference between climate change and global warming?

“Global warming” refers to the long-term warming of the planet. “Climate change” encompasses global warming, but refers to the broader range of changes that are happening to our planet, including rising sea levels; shrinking mountain glaciers; accelerating ice melt in Greenland, Antarctica and the Arctic; and shifts in flower/plant blooming times.

science projects for class 7

Is it too late to prevent climate change?

Humans have caused major climate changes to happen already, and we have set in motion more changes still. However, if we stopped emitting greenhouse gases today, the rise in global temperatures would begin to flatten within a few years. Temperatures would then plateau but remain well-elevated for many, many centuries.

CS 224C Final Project Details

Stanford / spring 2024.

The final project is the main assignment of the course. Projects are required to be related in a reasonable way to at least one of the central topics of the course or related to other social science topics via the lens of computation. Final projects can be done in groups of 1–3 people; in our experience, groups of 3 lead to the best outcomes, so we encourage you to form a team of that size. Each project team will be assigned a mentor (a member of the teaching team), who will provide feedback on all their project-related work and generally be available.

Submission Format

The literature review, experiment protocol, and final paper must use the ACL submission format and abide by all the ACL requirements except where we have specified otherwise.

1. Literature Review: Due Apr 25th, 23:59pm PT

  • General problem/task definition : What are these papers trying to solve, and why?
  • Concise summaries of the articles : Do not simply copy the article text in full. We can read them ourselves. Put in your own words the major contributions of each article.
  • Compare and contrast : Point out the similarities and differences of the papers. Do they agree with each other? Are results seemingly in conflict? If the papers address different subtasks, how are they related? (If they are not related, then you may have made poor choices for a lit review...). This section is probably the most valuable for the final project, as it can become the basis for a literature review section. .
  • Future work : Make several suggestions for how the work can be extended. Are there open questions to answer? How do the papers relate to your final project idea?
  • References section : The entries should appear alphabetically and give at least full author name(s), year of publication, title, and outlet if applicable (e.g., journal name or proceedings name). Beyond that, we are not picky about the format. Electronic references are fine but need to include the above information in addition to the link.

2. Experiment Protocol (Due May 14, 23:59pm PT)

Required sections:

  • Research Questions : A statement of the project's core research questions.
  • Data : A description of the dataset(s) that the project will use for either the analyses or evaluations.
  • Methods or Approaches : A description of the methods or approaches that you'll be using, and a preliminary description of the approach that will be the focus of your investigation. At this early stage, some aspects of these approaches might not yet be worked out, so preliminary descriptions are fine.
  • General Reasoning or Discussion : An explanation of how the data and approach come together to help answer or evaluate your core research questions.
  • Summary of Progress : what you have been done, what you still need to do, and any obstacles or concerns that might prevent your project from coming to fruition.
  • References : In the same format as for literature review.

3. Final Paper (Due Friday Jun 7, 23:59pm PT)

The final paper should be 8 pages long, in ACL submission format and adhering to ACL guidelines concerning references, layout, supplementary materials, and so forth. We'll provide additional guidance on writing up final papers. The course readings include many exceptionally good examples of NLP+CSS papers in this format.

There are two required paper sections that are special to our course:

Ethical Consideration : Please write an explicit discussion section of any potential ethical issues, such as around the ethical implication of the project, the use of the data, and potential applications of your work. Here are some recommendations from ACL's ethics guideline : "Ethical questions may arise when working with a variety of types of computational work with language, including (but not limited to) the collection and release of data, inference of information or judgments about individuals, real-world impact of the deployment of language technologies, and environmental consequences of large-scale computation."

  • Authorship statement : At the end of your paper (after the 'Acknowledgments' section in the template), please include a brief authorship statement, explaining how the individual authors contributed to the project. You are free to include whatever information you deem important to convey. For guidance, see the second page, right column, of this guidance for PNAS authors (p. 12). We are requiring this largely because we think it is a good policy in general. This statement is required even for singly-authored papers, because we want to know whether your project is a collaboration with people outside of the class. Only in extreme cases, and after discussion with the team, would we consider giving separate grades to team members based on this statement.

Sentinel and Enterprise

Industry pros award students for science project

Share this:.

  • Click to share on Facebook (Opens in new window)
  • Click to share on X (Opens in new window)
  • Entertainment

Five middle schoolers win at Student Industry Connects Showcase

The award-winning 7th-grade students from Megan Mayo’s Memorial Middle School class. From left, Chris Allen, Jacquie Pagan, Marcus LaDue, Julian Martinez and Crystal-Lynn Ellis. (FITCHBURG PUBLIC SCHOOL DISTRICT)

FITCHBURG — When you work hard, try your very best and have fun in the process, usually good things happen.

Just ask some 7th-grade students from teacher Megan Mayo’s Memorial Middle School class if that’s true.

The group of Jacquie Pagan, Crystal-Lynn Ellis, Chris Allen, Marcus LaDue and Julian Martinez submitted specific work samples from an OpenSciEd unit to One8’s Student Industry Connects Showcase.

The work that was submitted was reviewed by industry professionals and these hard-working students were recently selected as winners for their project.

“It’s a little crazy,” Mayo said. “I showed them the email and they were like, ‘we never win’ and I was like, ‘well, look at what you did and all the hard work you put in, everything you learned and all the progress you made.

“I’ve had these guys for two years, so the progress they’ve made over the last two years is pretty significant. I’m going to get choked up. I’m really, really proud of them. They are really great kids. They are able to make these really crazy, amazing connections through all of the work they are doing that can sometimes be hard.”

Fitchburg Public Schools Science Curriculum Director, Jessica Stodulski, says she’s extremely proud of the students for the work each one of them put into this project.

“The students’ work showed clear evidence that they had applied what they learned about heat transfer to design an effective solution to minimize heat transfer,” Stodulski said. “Thank you to One8 for the recognition of their hard work. We are very proud of the work they do each and every day and are grateful that others recognize the great things they are doing.”

Have you ever had your ice in your coffee or soda melt too fast on a hot day and water down your drink? This is the problem the students were trying to solve, and the project required students to select different household materials, such as cotton balls or aluminum foil. The intent was to design a cup which would stay colder for a longer period of time than a regular plastic cup would. Most importantly, students had to then explain how the items they chose would be implemented into the design to slow the transfer of energy from the air and sun, which would allow the drink to stay cold longer.

“We were pretty happy about the project,” LaDue said. “The thing I was most happy about that I learned is that I learned how to make cups. Aluminum foil keeps in the cold longer.”

Martinez added: “I enjoyed creating the cup and using different materials in different ways.”

Designing was perhaps the biggest hit with the students.

“I was excited because we got to design our own cups that we could see if they worked or not,” Ellis said. “Some of us added cotton balls to it. I took my cotton balls and glued them to the cup, but my cup didn’t kind of work, but it did.”

“We usually had our own cups, but if we didn’t have our own cups we helped other people with their cups and we did a bunch of tests with our cups,” Pagan said. “We put a lot of work into this. It didn’t feel like work because it was fun.”

Martinez’s cup tested the best and kept in the cold the longest. So what made his cup so special?

The class believes that because before Martinez put the aluminum foil on the cup, he put a cardboard Cozie on it and used that as the initial barrier. He then put the foil on after that. No one else had thought to use the cardboard Cozie, which proved to be the winning decision.

“We talked about what made it the best and they came up with that it was an additional barrier to keep the energy out of the cup and to keep the cold inside the cup,” Mayo said.

Allen said he had fun and learned a few things during the process.

“Learning about cups wasn’t my big cup of tea, but I guess it was fun how they do stuff, I guess?” he said. “The biggest thing I learned the most is the bigger the hole is on the cup, the more water you lose and you contaminate your water.”

The students also submitted hand-drawn models, along with video and written explanations about the reasoning behind their designs.

Their hard work and effort paid off as one Industry professional stated:  “I love all the thoughtful design and material choices for this project which demonstrated understanding of the science and applying real-world concepts. The class pictures are a delight to see.”

“We put some work into it because we had to design it, write about it and then we had to test it,” Ellis said.

“It was a lot of trial and error, and coming to a consensus as a class, and they worked really, really well together as a class,” Mayo said. “I’m really proud of them.”

Hard work does pay off.

-Fitchburg Public School District

More in Local News

An estimated $1.09 billion prize is now on the line for Wednesday's Powerball drawing, which can be paid out in an annuity over 30 years or as a $527.3 million cash payment.

Local News | Powerball jackpot hits $1B, ninth largest in lottery history

Working to ‘uplift individuals’

Working to ‘uplift individuals’

FSU celebrating launch of Biotech Research Lab


Fsu celebrating launch of biotech research lab.

North Middlesex Regional reschedules Ashby budget presentation to April 24

North Middlesex Regional reschedules Ashby budget presentation to April 24


  1. Science Projects For Class 7

    science projects for class 7

  2. Class 7 Science Projects

    science projects for class 7

  3. 20 Cool Science Projects For School Students

    science projects for class 7

  4. Science Projects for School Exhibition, Science Model Easy for Class 7

    science projects for class 7

  5. Class 7 Science Project Ideas

    science projects for class 7

  6. 7th Grade Cell Project

    science projects for class 7


  1. Science projects class-8 class 7

  2. Science project for class 7th students working model easy science exhibition projects class

  3. Science project for class 8th students working model easy science exhibition projects class

  4. Science project for class 8th students working model easy science exhibition projects class

  5. Class 7 Science Project Ideas

  6. Science project for class 8th students working model easy science exhibition projects class


  1. 50 Best 7th Grade Science Fair Projects and Classroom Activities

    50 Sensational 7th Grade Science Fair Projects and Classroom Activities. Mummification, oxidation, electroplating, and more! Engage every student with these 7th grade science fair projects, whether they're interested in biology, chemistry, physics, environmental science, or any other discipline. Plus, find interesting classroom demos ...

  2. Seventh Grade Science Projects

    Seventh Grade Science Projects. (699 results) Science Buddies' seventh grade science projects are the perfect way for seventh grade students to have fun exploring science, technology, engineering, and math (STEM). Our seventh grade projects are written and tested by scientists and are specifically created for use by students in the seventh grade.

  3. 25 Awesome topic ideas for class 7 Science projects

    Class 7 Science Projects. There are a number of really great ideas for class 7 science projects. These can be done with just a few laboratory items and a little bit of knowledge about how circuits work. These are the fun project that can be done over the course of a few weeks. 1. Swing a Glass of Water

  4. Seventh Grade Science Experiments

    Our seventh grade projects are written and tested by scientists and are specifically created for use by students in the seventh grade. Students can choose to follow the science experiment as written or put their own spin on the project. For a personalized list of science projects, seventh graders can use the Science Buddies Topic Selection Wizard .

  5. 67 Superb Science Fair Projects For 7th Graders

    Collect and measure biofilm for your 7th grade science fair project. Pick a small container or surface you want to observe, submerge it in water for 2 weeks, and see what cool bacterial growth happens. Check out the link here to get started! Learn More: The Homeschool Scientist. 7. High Voice Helium

  6. 43 of the Best 7th Grade Science Projects and Experiments

    No sweat. We have you covered. Check out our list of 43 science projects and experiments that you can try with your 7th graders this month. Yeast Metabolism with and without Aeration | - Grades 6-8 Biology experiment that evaluates the effects of glucose metabolism in yeast. Aspirin Absorption in Carbohydrate Solutions ...

  7. 16 Easy Topics for Science Projects for Class 7 Students

    Science Projects for Class 7: Practical knowledge is more effective than theoretical knowledge, especially for Science students. Thus, educators need to teach concepts of Science via projects, experiments, and models. However, teachers often hustle to explore project ideas, owing to the limited availability of materials. Also, teachers have to ...

  8. 10 Easy To Make Science Projects For Class 7 Students

    Science Projects designbycanva-maitri. Class 7 is a crucial phase of the student's life. It is the time when a student starts learning the alphabet of science. Parents need to put extra effort ...

  9. Fun and Educational Science Experiments for Class 7 Students

    Science experiments are an essential aspect of the CBSE Class 7 curriculum, particularly for Science students. These experiments involve hands-on activities that enable students to actively participate in the subject matter and engage more deeply with the concepts being taught. The subject becomes more interesting and easier to comprehend by ...

  10. 30 Ideas For 7th Grade Science Fair Projects

    7. Make A Slime Bomb. This science fair project is best done with an adult or older kid. You will want to find out what chemicals to use for the slime (you can search the internet for that) and then make it. It is best if you have a friend who knows how to make slime with you, too! 8.

  11. 15 Fascinating Science Experiments for 7th Graders

    15 Fascinating Science Projects for 7th Graders…..and beyond. #1 - Check Out Charcoal's Purification Abilities. This experiment demonstrates how charcoal powder, or activated carbon, purifies water. Charcoal is used in many water filtration systems, but seeing it in action is quite impressive-and all you'll need is activated carbon ...

  12. Seventh Grade Projects, Lessons, Activities

    Our seventh grade projects are written and tested by scientists and are specifically created for use by students in the seventh grade. Students can choose to follow the science experiment as written or put their own spin on the project. For a personalized list of science projects, seventh graders can use the Science Buddies Topic Selection Wizard .

  13. 17 Best Science Fair Projects for 7th Grade

    The Science of Fingerprints by Leonard Bloch. Fingerprints offer a fun way to explore the science of forensics. This site offers some basic experiments and then takes the student on a "Crime scene" investigation using their fingerprint knowledge. Recommended for Grades 7-8. Source:

  14. Seventh Grade, Physics Science Projects

    Build an Infinity Mirror | Science Project. Line-Tracking Robot: BlueBot Project #3. Uncover the laws of the universe with physics experiments. Explore motion, energy, and the fundamental forces of nature. Find the perfect seventh-grade science experiment from this collection of top science explorations.


    There are 94 Science experiments for Class 7 as per CBSE Syllabus. Kolb Labs will perform most of the science experiments using the real material. Kolb labs will also use other methods like images, videos, prototypes etc. Kolb labs will encourage class 7 students to perform activities hands-on.

  16. Science Experiments for CBSE Class 7

    These Science experiments for CBSE Class 7 play a vital role for a student studying in a Science stream. It is a kind of hands-on activity. It helps the students to engage more with the topics on the subject. The subject becomes more interesting with these practical experiments of CBSE Class 7. It may vary from informal comparisons to personal ...

  17. Science Projects for CBSE Class 7 and Working Models for CBSE Science

    CBSE Science projects - These are all about testing and getting results, even if you get a surprising result than you might not have expected. Learn more about CBSE Science projects at BYJU'S. ... NCERT Solutions for Class 10 Science Chapter 7; NCERT Solutions for Class 10 Science Chapter 8; NCERT Solutions for Class 10 Science Chapter 9;

  18. 70 Easy Science Experiments Using Materials You Already Have

    Go Science Kids. 43. "Flip" a drawing with water. Light refraction causes some really cool effects, and there are multiple easy science experiments you can do with it. This one uses refraction to "flip" a drawing; you can also try the famous "disappearing penny" trick.

  19. 37 Cool Science Experiments for Kids to Do at Home

    Difficulty Level: Easy. Messiness Level: Medium. In this quick and fun science experiment, kids will mix water, oil, food coloring, and antacid tablets to create their own (temporary) lava lamp. Oil and water don't mix easily, and the antacid tablets will cause the oil to form little globules that are dyed by the food coloring.

  20. Best topic ideas for class 7 Science projects

    Biodiesel Project. Solar Cell Project. Cotton Candy Machine. Wind Turbine Project. Working Model of Heart. Biogas Plant Project. These are some of the winning science fair projects for 7th grade. Students can learn and explain to their team members or peers about how the model works and what it represents.

  21. Seventh Grade, Chemistry Science Projects

    Seventh Grade, Chemistry Science Projects. (33 results) An experienced chemistry professor used to say that it took about one explosion per week to maintain college students' attention in chemistry lectures. At that rate, we'd get in pretty big trouble with a lot of parents and teachers! Don't worry, we still have lots of bubbles, fizzes, bangs ...

  22. Seventh Grade, Electricity & Electronics Science Projects

    Science Fair Project Idea. "Paper circuits" are a fun way to mix electronics and art by adding lights directly to a painting or drawing. These lights need a battery to power them, and typically you would use wires to connect them. In paper circuits, though, many materials can be substituted as "wire," including special types of paint, ink, and ...

  23. The Effects of Climate Change

    Global climate change is not a future problem. Changes to Earth's climate driven by increased human emissions of heat-trapping greenhouse gases are already having widespread effects on the environment: glaciers and ice sheets are shrinking, river and lake ice is breaking up earlier, plant and animal geographic ranges are shifting, and plants and trees are blooming sooner.

  24. Seventh Grade, Environmental Science Science Projects

    Seventh Grade, Environmental Science Science Projects. (27 results) As humans we are part of the environment. With over 7.5 billion of us on Earth, our combined actions also have a big impact on the environment. As long as we are aware of the impact, we can do things as individuals, and working together as groups, to lessen the detrimental ...

  25. Stanford CS 224C

    ⭐ The below is drawn from the requirements for CS224U and CS384. General. The final project is the main assignment of the course. Projects are required to be related in a reasonable way to at least one of the central topics of the course or related to other social science topics via the lens of computation.

  26. Industry pros award students for science project

    The award-winning 7th-grade students from Megan Mayo's Memorial Middle School class. From left, Chris Allen, Jacquie Pagan, Marcus LaDue, Julian Martinez and Crystal-Lynn Ellis.