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.

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

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

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!

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.

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

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

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!

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

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

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

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.

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

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

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

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!

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

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

How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.

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

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

Give your child an introduction to food preservation by making and canning your own yummy, homemade pasta sauce!

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!

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

This balloon-powered car project is a great way for your kid to learn about energy and how it can be used efficiently.

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.

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