What Is Sound?

Sound is actually a form of energy like electricity and light. It’s made when molecules vibrate and move in a pattern of waves — sound waves. For example when you clap your hands that action produces sound waves. Why? When something moves or vibrates it disturbs the substance next to it — usually air. The air molecules also vibrate sending out waves — something like the ripples made when you throw a stone into a pond. Those waves reach our ears which do their job of receiving and sending the sound to our brain which then identifies it as handclapping or something else.