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

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

This is a fun way to introduce kids to the concept of volume, and give them a quick hands-on activity to boot.

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

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.

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.

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.

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.