A simple science experiment exploring the physics of water pressure that's been amazing people since Medieval times.

Here's a fun activity to help build thinking skills in young first grade scientists, and to encourage them to have a blast exploring the mass and volume.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.

Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

What happens when light hits a hard surface? Find out by conducting a simple light reflection experiment with your preschooler.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

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.

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.

Your third grader will delight in learning about sound waves as he observes the different sounds created by tapping on glasses with varying amounts of water.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Help your kindergarten scientist understand the concept of surface tension with this simple science experiment.

Explore the wave-particle duality of light! Learn how light can behave as both a wave and a particle in this cool physics science fair project idea for kids.

This 4th of July, explore fourth grade science and make some safe fireworks in your own backyard using soda pop!