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

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

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

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

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