What causes sound? Here's a simple science experiment that adds a visual element to the science of sound to help kids better understand this tricky concept.

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!

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

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.

Here's a classic celery science experiment that uses celery and food coloring to demonstrate how plants absorb water.

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

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

Got a young scientist at home? Try this project with him!Create your own molecule design with this home-made clay recipe and some toothpicks!

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

For this activity your child will use the ready made glycerin base to create elegant rose petal hand soaps.

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.

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

If your science savy third grader is up for a challenge, let her bend light with a casserole dish!

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.

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

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

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

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Help your kid feel like a superhero with this safe and fun science experiment that creates an electrical charge that's like a mini lightning bolt!

Help your child understand the scientific concept of evaporation with this fun outdoor science activity.

Help your kindergarten scientist discover relative size, density, and buoyancy with this fun, pumpkin science project!

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

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

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

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

This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

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.

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

Here's a fun activity to reinforce the physics concept of stored energy for your middle schooler.