Explore concepts in current and coltage with these Van de Graaff generator experiments.

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.

Find out whether matching resonant frequencies can cause objects to shatter.

Discover the force of water! This article provides step-by-step instructions for creating your own science experiment.

The objective of this experiment is to identify common materials that absorb sound waves with the greatest efficiency.