This play-activity causes young children to focus on and become more aware of their sense of hearing and the power of their ears.

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.

This science fair project idea teaches that time always passes at the same rate and nothing we do in our daily life âreallyâ affects how fast it moves.

In this science fair project, young children observe, record, and create collections of shapes in their world and increase their powers of observation.