The purpose of this science fair project is to build a basic radio.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

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

What's cooler than an explosion? Not much! This simple science experiment lets kids build their own pop rocket. So put on your safety goggles and let her rip.

Your child will learn science and make a fun new malleable toy with this balloon sandbag science experiment.

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

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

How do people move pianos and heavy furniture into tall buildings? Show your kids some pulley potential with this simple household exercise!

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.

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?

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

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

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

Take to the air with science by experimenting with helicopter seeds right in your own backyard!

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!

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

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!

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

This science fair project idea experiments with spinning color wheels and optical illusions.

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