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

This science fair project idea produces varying pitches of sound.

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

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!

What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.

Children combine an acid and an alkaline substance to simulate a volcano eruption in this fun experiment.

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.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

Help your fifth grader execute this experiment involving a lit candle (submerged in water!) to show him the wonders of heat energy transference.

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

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

An home science experiment for older students that teaches about the science behind heat.

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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.

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

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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