SEYMOUR: Hello! Seymour Science here with my musical friend Davina…and today we’re talking about…SOUND! La, la, la la la la la laaaa…. DAVINA: Err, thanks Seymour! So, how are sounds made?

A sound wave is a vibration that travels through a solid, liquid or gas such as the air or water. A loud sound has a large amplitude, a high pitched sound has a high frequency. Musicians and ...