Find out whether putting something on top of a plant will inhibit its growth.

Do suds equal more clean or does a sud-free cleaning agent works just as well or even better?

This science fair project idea explores whether the color of surroundings affects human mood.

Who needs paint, glitter, or crayons when you have natural art supplies right outside your front door?

This project will examine the relationship between materials and air resistance.

The objective of this science fair project idea is to find out whether refrigerating cosmetics will extend their shelf-life and longevity.

Do different types of oil mix or stack? Find out in this science fair project idea!

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

In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

Evaluate gender differences in processing visual information.

Explore convex and concave objects and how they reflect light.

Find out which kind of bubble wrap fares best when put in impact.

This science fair project idea explores which kinds of earplugs are the most effective.

Find out whether freezing or refrigerating destroys more bacteria. This is essential to consuming safe and germ-free food.

Use natural materials to try out a new kind of weaving. Your child will enjoy gathering their materials outside and then using them to create a piece of art!

This simple activity is not only fun, it's also a useful way to organize children's closets — and offer kids some autonomy to boot.

Investigate the different ways in which objects and organisms can be classified, create your own. then have volunteers classify using their own systems.

Find out which type of sponge holds the most water.

In this science project, young children observe, record, and create collections of colors in their world and increase their powers of observation.

Will people perceive your intelligence differently depending on your hair color? Find out in this science fair project idea!

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

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

Every time a sound is produced it emits a sound wave. This experiment demonstrates how sound travels, using nothing more than a spoon and a string!

Does skin thickness really decrease fruit spoilage? Find out in this science fair project idea!

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

Amaze your kids by separating a salt and pepper mixture using an "electric spoon" charged with wool.

Fibonacci sequences have been observed throughout nature, like in leaves and flowers. In this project, students find examples of the Fibonacci sequence.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.