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 experiments with spinning color wheels and optical illusions.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

The pinwheel is a simple toy that has been around for years and uses the wonders of the wind to spin it and delight kids of all ages!

Bring back the groovy memories by making shrinky dinks using household materials, while learning about the science of plastics. Here's how to get started:

What happens when colored beams of light mix? You might be surprised.

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!

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

Help your curious third grader construct a dazzling spinning wheel that will teach him about the science behind colors while providing some silly entertainment!

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

This classic children's game demonstrates how sound travels through air vs. through a solid.

Make stunning pendulum waves and learn the math behind the patterns generated with this cool and easy science project.

This experiment uses a yeast solution, liquid detergent, and hydrogen peroxide to produce an exciting reaction like no other!

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

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

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

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

Teach your child some scientific basics as you explore the densities of various liquids in this fun experiment.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

On the next chilly, winter day, invite your fifth grader to make a hand warmer by experimenting with the loaded combination of a few natural ingredients.

Inspire your child to put on her engineer hat for the day, as she builds her very own, double-decker bridge.

Looking for an enjoyable evening activity you can do with your kids? Study the stars: help them learn about constellations by making one of their own.

This science fair project demonstrates the principles of reflection through simple experiments involving mirrors and light.

Find out the differences (if any) in the frequencies of voices produced from a computer, from a phone, and directly coming out of the voice box of a human.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

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

Invite your middle schooler to bungee jump ... with eggs! This experiment will demonstrate Newton's laws of physics in an entertaining way.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.