How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

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

In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.

Demonstrate how we are able to locate sounds, echolocation. Have a blindfolded subject locate you by the sound of your clapping.

This trick uses vertical and horizontal forces to help your child to push apart your hands apart, no matter how hard you try to keep them together!

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.

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

All you need are pencils, paper and some scissors to get started on this easy and fun game to review astronomy information, or other types of study concepts.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

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!

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

Engineers in training can get started with this simple wheel-and-axle construction activity.

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

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

Household items and a bit of imagination will create a CSI kit for your child to have investigative adventures with. Explore the world of forensic science!

Have you or your child ever heard that nursery rhyme and wondered just what curds and whey are anyway? Do this simple experiment together to find out!

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

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

Here's a science experiment that gives your kids a chance to see how fire needs oxygen to burn, with a little math and writing practice thrown in.

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

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

This fun, think-outside-the-box activity introduces kids to gravity and other basic scientific concepts as they construct an impressive marble run!

In this fun activity, your child will create their very own solar oven to bake s'mores!

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

This awesome diffraction grating experiment puts high school students' applied math skills to the test by having them calculate the wavelength of laser light.

This homemade barometer allows your little scientist to contemplate and compare different air and weather conditions.

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.

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!