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

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.

Deck the halls with last season's Christmas lights for a spectacular and electrifying science activity.

Explore the scientific concept of capacity by seeing how many pennies you boat can hold before it sinks!

Try the classic balloon-on-the-wall trick with your kid and watch static electricity in action.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.

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

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

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

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.

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.

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.

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

Stir up some enthusiasm for experimentation with this candy-cracking science experiment!

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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!

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

Teach your little scientist about the amazing powers of gravity by comparing the falling speeds of two yummy fruits

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

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!

Create a homemade pair of sunglasses with colored lenses to see just how light and color affect our sight! Use this fun project to practice science!

What's a liquid? What's a solid? What better way to experiment than by turning a childhood favorite, ice cream, into a homemade science lesson!

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

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