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.

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

Here's a fun and simple activity to introduce your child to surface tension, and pull an awesome stunt in the process!

Teach your child how butter is created by shaking up cream the old-fashioned way.

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

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!

A homemade lava lamp gives any room a retro flair. Find out how to make a homemade lava lamp, and learn some science too, with this educational activity.

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

Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.

Let your young scientist explore a brave new world of sound with an experiment that just requires a handful of common household items.

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

Teach your kids about entropy with this fun, easy exercise, and teach your money to dance while you're at it!

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

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?

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.