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The rock cycle will come alive for your child when he uses broken crayons to create the three basic rock types.

Create a three-dimensional X-ray of your child's hand in this simple modeling activity. All you need to get started are black paper and drinking straws

Wool can absorb 1/3 of its weight in water, while still keeping the body warm. She can test this theory by performing a scientific sock comparison!

This science fair project idea explores how length affects the weight a bridge can hold.

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

This second grade arts and crafts activity is all about caterpillars emerging from their cocoons as butterflies.

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

This science fair project idea investigates how the shape of an object affects drag.

When you cut a flower to put into a vase, it'll eventually wilt, even with water and sunshine. But is there another scientific secret to keeping flowers fresh?

This science fair project examines how seeds hitchhike on animals and clothing.

In this project, build an insect model that shows how the head, thorax, and abdomen fit together! Learn insect anatomy by constructing a paper mache critter.

When you rub a balloon on your head, your hair stands up; but is that true for everyone? Does hair color affect static electricity?

Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.

Bring the fun of gardening indoors! By stuffing a simple pair of pantyhose with a few grass seeds on top, your child can grow her very own plant pet.

Is it possible to trick the forces of nature that make your bubbles round to create a square bubble?

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

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.

Does your child always demand to know why the sky is blue, how the sun moves across the sky, or where wind comes from?

Is it a square or a circle? See if you can trick your friends with this zany science project!

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.

Ready for takeoff! Make science fun and teach about levers and fulcrums as your child sends buttons flying.

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

These science fair experiments demonstrate the chemistry of rust and the oxidation process.

This science fair project idea investigates if webbed feet help a duck (and others) swim.

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

Learn about this simple machine and make a pulley of your own to use for fun science trials.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

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

Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.