1. Identify how sounds are made

Front

vibration

Back

Particles moving very quickly.

Front

medium

Back

A substance, such as air, water or a solid.

Front

waves

Back

the form that energy takes when travelling

Front

signals

Back

sounds waves that are sent or received

Front

eardrum

Back

part of the ear that receives sounds

Front

echo

Back

a repeating sound

Front

source

Back

the start of something

Front

vacuum

Back

a space that does not contain air

Front

particles

Back

a tiny pieces that make up something larger

Front

energy

Back

the power to make something work, move or grow