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

Using a toy race car kids create a visual model of the Doppler Effect.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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

There are many benefits to bugs and insects. This science project shows how cockroaches, termites, and other critters benefit our planet.

Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.

In this science fair project, students use the streak test to tell minerals apart from each other.

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

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Help your second grader observe the phases of the moon, and then let the fun loose: he'll get to chart his observations with marshmallows!

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!

Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?

Start your toy engines -- this is going to be a fast and friction-filled race!

This science fair project idea investigates how magnetism can defy the force of gravity.

In this project combining nature, art, math, and science, children make rubbings of leaves then observe shapes and structures and sort the leaf images.

This experiment challenges students to forecast the weather based on the surrounding areas' weather.

What is a wedge? Kids find out by experimenting with different wedges in this simple science fair project idea.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Plants and light seem to be good buddies, but how far does the friendship really go?

Learn all about balance and motion as your child designs a corn maze!

This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.

This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.

Are you ready to be a detective for science? Then get out your magnifying glass and start studying fingerprints!

It's rhyme time! With this science fair project idea, your child will find out which words can be considered easy rhyming words, and why.

Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.

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