This fun marbled paper craft uses things you're likely to have around your house, and it teaches kids some simple chemistry too!

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.

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.

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.

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.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

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

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.

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.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.