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1000 Science Fair Projects with Complete Instructions

18 Popular Science Fair Projects for Kids

18 Popular Science Fair Projects for Kids

Get ready to experience the wonder of science with these popular science projects that are perfect for all ages! You don't even need to leave your home because you probably have all the things you need. These experiments not only promise a fun time but also provide valuable scientific lessons that will leave you curious for more.

Dish Soap and Milk Color Bursts
1. Dish Soap and Milk Color Bursts
Touch a soap-dipped cotton swab to food coloring in milk and watch the colors burst apart into swirling patterns.
Easy
Oobleck and Non-Newtonian Fluids
2. Oobleck and Non-Newtonian Fluids
Squeeze a simple mix of cornstarch and water into a solid ball, then open your hand and watch it flow back into a liquid.
Easy
Rainbow Borax Crystals
3. Rainbow Borax Crystals
Grow sparkling rainbow crystals overnight on pipe cleaners and watch solid crystal structures form as the Borax water cools.
Medium
Elephant Toothpaste Foam Reaction
4. Elephant Toothpaste Foam Reaction
Pour a yeast mixture into a bottle of hydrogen peroxide and watch a giant column of warm foam erupt.
Easy
Vinegar and the Rubbery Egg
5. Vinegar and the Rubbery Egg
Drop a raw egg into vinegar for a few days and discover that the acid dissolves the hard shell, leaving behind a soft, rubbery egg.
Easy
Lemon-Powered LED Light
6. Lemon-Powered LED Light
Turn a lemon into a working battery and find out whether it can produce enough electricity to light an LED.
Easy
Egg Drop Survival Challenge
7. Egg Drop Survival Challenge
Design a protective case from household materials and find out whether your raw egg survives a high drop.
Medium
Candy Coating Colors and Paper Chromatography
8. Candy Coating Colors and Paper Chromatography
Drip water onto a candy sitting on filter paper and watch hidden ink colors separate into colored rings.
Easy
Pressure, Smoke, and Cloud Formation
9. Pressure, Smoke, and Cloud Formation
Drop a lit match into a jar with water vapor and seal it with a plastic bag. Pull the bag outward and watch a real cloud form inside.
Medium
Baking Soda and Vinegar Eruption
10. Baking Soda and Vinegar Eruption
Combine baking soda and vinegar in a volcano mold and watch carbon dioxide gas drive a fizzing eruption.
Easy
Casein Glue from Milk and Vinegar
11. Casein Glue from Milk and Vinegar
Milk contains a protein that turns into working glue when you add vinegar and a pinch of baking soda.
Medium
Potato Batteries: Metals, Voltage, and LEDs
12. Potato Batteries: Metals, Voltage, and LEDs
Push copper and zinc strips into potatoes and wire them in series to generate enough voltage for an LED.
Medium
Static Electricity and Jumping Cereal
13. Static Electricity and Jumping Cereal
Rub a plexiglass plate with wool and watch Rice Krispies leap off the table and stick to the charged surface.
Easy
Air Pressure and the Egg in a Bottle
14. Air Pressure and the Egg in a Bottle
Set a peeled hard-cooked egg on a jar, drop in lit matches, and watch air pressure push the egg inside.
Medium
Film Canister Rockets and Gas Pressure
15. Film Canister Rockets and Gas Pressure
Snap a baking-soda lid onto a vinegar-filled film canister and watch gas pressure launch it skyward.
Easy
White Daisies and Food Coloring
16. White Daisies and Food Coloring
Place white daisies in colored water and watch the petals change to blue or red within a single day.
Easy
Baking Soda, Vinegar, and Floating Spaghetti
17. Baking Soda, Vinegar, and Floating Spaghetti
Watch spaghetti rise and sink on its own as carbon dioxide from baking soda and vinegar lifts each piece.
Easy
Beverage Color and Flavor Perception
18. Beverage Color and Flavor Perception
Dye four identical lime drinks different colors and see how many people taste flavors that match the color instead.
Medium

Science Fair Project FAQ

How do I start a science fair project?

Science fair projects are a fun and unique way to discover science by asking a question and doing a science project. We'll help you find a science fair project idea and guide you through the process of doing and presenting your science fair project with Science Fair Coach's Science Fair Project Guide.

What are some hands-on ways to find inspiration for my science fair project?

Science museums are great places to explore if you're looking for inspiration for your next science fair project or just want to learn more about science. Science museums, natural history museums, space museums, and discovery museums are all great places to do that! You can discover all sorts of interesting things about science and find cool project ideas for science fairs.

There may be free admission days or free passes to a science museum near you! Check your local library for free museum passes, nearby science museums for free entrance days and your credit card for offers.

Find a science museum near you and prepare to be awed by all that you can learn there! I always learn something new and am inspired whenever I go to a science museum!

What should I do after I have a science fair project idea?

If you have a science fair project idea, Science Fair Coach can help you turn it into a full science fair project! Starting at Introduction to Science Fairs, we'll guide you through how to do a science fair project, from designing and conducting your experiment to collecting and analyzing your findings. Then, we'll help you showcase your results on a science fair board with our Guide to Science Fair Posters.

How do I make a science fair board?

Your science fair board is where you show off your science fair project for everyone to see and learn from. With our Guide to Science Fair Posters, you can make sure your science fair board stands out and impresses at the science fair!

What is the scientific method?

The 7 steps of the scientific method helps us understand how nature works. Learn how the scientific method is used in a science fair project example, and how it's evolved through history as scientists used different ways to learn about nature with our Guide to the Scientific Method!

What is the engineering design process?

The 6 steps of the engineering design process helps us design an effective solution to a problem. Learn how to use the engineering design process with the example of the egg drop challenge in our Guide to the Engineering Design Process!

Where can I find a science fair competition?

Science fair competitions are an excellent opportunity to explore science. One of the of the premier science advocacy organizations, the Society for Science, is associated with more than 400 science fair competitions in almost every US state, as well as over 70 other countries, regions, and territories. You can find out if there's a Society of Science affiliated science fair near you!

The www Virtual Library: Science Fairs website also has a collection of science fairs from all over the world, as well as national, state, regional, local, and virtual competitions!

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