Sounds can be made by twanging a string or an elastic band, blowing down a pipe, banging something together, and scraping or shaking something. There are three families of musical instruments - string, wind and percussion. When a string is plucked on an instrument such as a guitar, the vibration is passed into the air and you hear a sound. Blowing into panpipes or a horn makes the air inside the pipes vibrate. Bongos and other percussion instruments produce vibrations when you bang them.

First broadcast:
15 October 2007

Useful as the introduction to how sounds are made through vibrations. The children could investigate how the vibrations occur in the instruments within school. They could draw the instruments and label them with facts to create factfiles. The children could then invent their own instruments using information from the clip and describe how it works.