Sounds are made when objects vibrate. The vibrations enter your ear and you hear them as sound. Find out more about how sound travels.
Sound waves make the eardrum vibrate and then send messages to the brain. Find out more about how the ear detects sounds.
A drum with a tight skin makes a high pitched wave. Find out more about sound waves and pitch.
Sounds are vibrations that travel through the air. A weak vibration doesn't travel very far. Discover more about volume.
We have a selection of great videos for use in the classroom