This classic children's game demonstrates how sound travels through air vs. through a solid.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

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.

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Did you ever think you could make colors disappear right before your eyes? This science experiment is just like a magic trick: now you see it, now you don't!

Water can go from solid to liquid to gas...but how does popcorn go from kernel to snack? Invite your first grade scientist to find out.

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.