Introduce your child to the world of motion and physics with a bit of marble play inspired by Sir Isaac Newton!

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

In this science fair project, young children discover what happens when two fluids that have different densities get together.

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.

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

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.