Crayons aren't just good for creating colorful masterpieces -- they're also great for science!

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Take a dive into the candy jar with this yummy science experiment.

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

This science fair project idea determines which method of hand cleansing is the most effective.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

Want to see a great example of Newton's first law? Kids will learn about basic physics with this fun, ballistic experiment.

Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.

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

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

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.

Check out this cool science project idea to learn about rocks and explore the cycles of formation, breakdown, and reformation of rocks in the Earth's crust.

Kids will learn how to make a steam powered rocket boat, also called a putt putt boat or a pop pop boat, in this great science fair project for 4th graders.

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Make a backbone model to explore human anatomy and life science.

This science fair project idea determines if the color of light affects the growth of plants.

How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.

In this experiment you will replicate the mummification process by making a hot dog mummy.

Have you ever noticed the ridges on a dog's nose? In this project, we take several dogs' nose prints and discover just how unique they are!

How does a flashlight work? Kids will make a complete circuit and explore how voltage contributes to brightness with this science fair project idea.

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.

While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!

Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.

This project examines whether people's taste perception is influenced by what they see.

This light bulb science project includes step-by-step instructions for testing the heat from different light bulbs.

The project determines the forces that cause paper airplanes to fly and determine which type of paper airplane flies the farthest.

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.