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

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.

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

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

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.

What's the quickest way to separate salt and pepper? Let static electricity do the work! Your child will be fascinated by this simple experiment.

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.

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.

Introduce your child to the amazing, almost magical phenomenon of static electricity!

Your second grader will love this simple soda bottle race car activity. Make a ramp and customize your car for an entertaining way to learn scientific concepts.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

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

Help your second grade scientist explore the timely topic of wind speed using a version of the classic Beaufort Scale.

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