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

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

Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.

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

Ever wondered how a plant drinks water? This science project will teach you how and help you create a beautiful floral display!

Prove that the Earth is not flat. The objective of this science fair project is to measure the angle of the sun and calculate the circumference of the Earth.

This science fair project idea investigates if fats add to the flavor of food.

This clay "painting" activity encourages and supports creative development and critical thinking skills.

This science fair project teaches students about wilting and browning of salad greens.

Discover how to make fake snot with this cool science fair project idea to learn about polymers, enzymes, and more.

The goal of this golf science fair science fair project is to determine whether the temperature of a golf ball affects its elasticity and its rebound.

The purpose of this science fair project is to study the properties of sugar and examine individual preferences for sugar and other sweeteners.

Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.

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

Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.

Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

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.

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

This science fair project idea explores whether the process used to dry the beans we eat for food renders them unviable.

In this hands-on design challenge your child will make their very own Rube Goldberg Machine.

The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.

How would you dry your wet clothes if your dryer didn't work? Find out with this fun experiment!

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

What chromosome combinations determine a fetus gender? Use probability to think about whether a sperm and ovum will create a male or female in this project.

Try hammering some plants with your kids to teach them a valuable lesson in flower science while making beautiful artwork in the process!

This science fair project idea compares biodiversity between drops of water.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Use chemical analysis to identify a variety of mystery powders that look the same but actually have very different properties.