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

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

This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.

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

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

Play with balance and simple engineering as you hurry to create a sturdy rock tower.

Learn how different types of soil affect how animal tracks form in this experiment!

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

This science fair idea is a great way for kids to explore static electricity. Kids will give a comb a static charge and watch as it separates pepper from salt.

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

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

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

Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.

This science fair project idea determines which method of hand cleansing is the most effective.

Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.

How does dishwashing liquid work? Kids discover the chemical mechanism behind cleansing power in this easy science fair project idea.

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

In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.

Be a chemist for a day and study the simple reaction between sugar and heat. Try heating sugar and see what happens!

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

Get ready for a yummy taste test! Just pour the milk -- and make sure you have some chocolate chip cookies on hand.

Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.

How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.

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?

Uh-oh! Is that a pill sitting on the counter or a piece of candy?

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

This engaging project encourages young children to practice and refine the important scientific skills of sorting and classification.

Do you think you could walk around upside down -- with your feet in the air and your head on the ground?

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.