How are sounds made?

Sounds are made when objects vibrate. The vibrations enter your ear and you hear them as sound. Find out more about how sound travels.

How are sounds detected?

Sound waves make the eardrum vibrate and then send messages to the brain. Find out more about how the ear detects sounds.

What is pitch?

A drum with a tight skin makes a high pitched wave. Find out more about sound waves and pitch.

What is the volume of sound?

Sounds are vibrations that travel through the air. A weak vibration doesn't travel very far. Discover more about volume.

20 Classroom videos

We have a selection of great videos for use in the classroom