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.

In this physics project, learn about the relationship between light intensity and distance using a laser pointer, flashlight, and graph paper!

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

Using an empty tennis ball can and a swimming pool, you will determine if it's possible to have a conversation under water.