This science fair project idea demonstrates that plants give off water.

Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

Use this fun activity to make an optical illusion picture that helps your kindergartener explore the sense of sight, and sharpen his observation skills!

Discover whether cold or hot water from the faucet will boil faster on the stove.

Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.

Kids discover what a homogeneous mixture is by adding sugar to distilled water and identify the various factors affecting solubility.

This super fun science project, perfect for young children, combines crafts, dressing up as animals, outdoor play, and life science learning.

In this activity, your child will be challenged to use simple materials to create a catapult for a small, lightweight toy.

In this fun design challenge, your child will get creative with making structures out of toothpicks and gumdrop candies.

How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.

Test your friends to find out if you can replicate the placebo effect's incredible results.

Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!

Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.

Here's a math, science, and social studies activity: help your kindergartener become a "coin archaeologist" by examining how different coins look and feel.

In this activity, your child will transform an egg into a glowing, bouncy "ball" that they can play with.

Cherries usually burst with flavor, but in this science experiment they burst with osmotic pressure. This science activity will blow your curious kid's mind!

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

Kids often ask, "how tall am I?" This science fair project seeks to determine how well kids can guess their own heights.

In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!

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.

Why does purple cheese look nasty? Because color plays a big part in how we perceive the taste of different foods. Are birds just like us in this respect?

Alive or not? This yeast experiment you can conduct with your little scientist explores the answer to this timeless question.

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

Have your child kick off their summer vacation by making a miniature water slide!

How powerful is the reaction between baking soda and vinegar? Find out here!

Learn how starch and carbohydrates interact with different solvents in this fun and easy packing peanut science fair project.

This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

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.