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Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

This science fair project idea explores whether talking to a plant will help it grow.

Would your child like to learn about a hidden world? All she needs to do is open her box of markers!

Making your own glass cleaner is easy, effective and inexpensive!

An hour glass, also known as a sand clock, keeps time. In this activity, your child will make her own sand clock and measure the time it keeps.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Discover whether different amounts of water added into a wine glass will produce a different pitch when their fingers are rubbed along the rim.

Teach your child how butter is created by shaking up cream the old-fashioned way.

Have your child build his own mini waterfall, and help him develop his planning, problem solving, and architectural skills.

Help your child get a grasp on what it was like to build gigantic ancient structures with this easy engineering activity about science and physics.

Believe it or not, images that are cast upon your eye's light-sensitive screen (called the retina) are upside down. Here's a fun, fast experiment to prove it!

This simple "how to make a water wheel" activity makes physics come alive for your child by demonstrating how different kinds of energy work.

This science fair project creates a visual model of whatâs happening to sound waves as a car approaches and then leaves.

Try this chemistry experiment with your curious kid and get some "shocking" results!

Give your budding young observers a chance to discover simple machines at use in their own home.

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?

Let your fourth grade chef mix up butter and sugar with scientific principles about different states of matter, and get delicious toffee, too.

Make water and clay play a little more scientific with this hands-on experiment that teaches displacement and shows how an object's shape affects its buoyancy.

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