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.

I scream, you scream, we all scream for homemade spearmint ice cream!

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

This quick and simple preschool mirror activity will introduce your child to the science of reflection and light with a flashlight experiment and picture game.

Engineers in training can get started with this simple wheel-and-axle construction activity.

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

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

Make your own helicopter using a paper clip and a sheet of paper. Hold the spinner up in the air, let it go, and watch it spin gracefully to the ground.