Sound is made from vibrations

The Junior school is learning about sound. Last week some year 1 classes did sound investigations. This is a story written by one of the young scientists.

On Friday C Block visited Miss Harrison's room. We learnt what makes sound. My favourite experiment was when you band a tuning stick on a table and put it in water. It makes vibrations. Do you know how vibrations go from the sound to your ear? I know. The sound has sound waves. Sound waves go in the air to your ear.

By Ashley - Year 1

This picture shows how sound waves make the air vibrate. When the students spoke through the megaphones the salt on the plastic wrap moved.