This science fair project idea explores whether white light can be separated into different colors.

Discover which fabrics shrink the most in the wash and why.

Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

The objective of this science fair project is to explore the relationship between acidic and basic compounds.

What keeps a an item cooler, polymer crystals or ice? Find out in this cool science experiment!

In this science fair project, students examine under what conditions individual plants release seeds and how far the seeds are released.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea investigates the ability of different whitening toothpastes to whiten teeth.

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

Can you imagine a sky filled with bright, colorful bubbles? Make this whimsical scene come alive with bubble science!

Science fair project that teaches you about chemical indicators and how to make your own in order to identify various mystery solutions.

In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.

How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.

This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.

Learn how to make a hygrometer to measure relative humidity in this project. Make a sling psychrometer hygrometer with gauze, thermometers, and a bottle.

Create safe lightning for kids! They'll learn how to make lightning at home with this fun science fair project idea illustrating static charges and grounding.

Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.

Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.

Enter the buzz worthy world of bee watching and find out what time bees like to wake up!

Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.

In this cool project, create a lighted, scale model of the different layers of the Sun, including the core, radiation and convection zones, and photosphere.

Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.