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.

Has your kid noticed how much bigger the moon looks when it's low in the sky? Here's an activity you can do to show them that it's just an optical illusion.

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

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!

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Delight your budding scientist with this cool physics magic trick and teach her some basic physics concepts while you're at it!

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

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.

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

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.

Has your child ever asked you how a submarine works? Here's a simple bathtub project that will make for a hands-on answer.

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

How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.