Watch: Recap what you may already know about sound
How are sounds detected
Sounds are made when objects vibrate. The vibration makes the air around the object vibrate and the air vibrations enter your ear. You hear them as sounds.
Watch: How the ear is designed to hear
The ear
Sound is detected when the vibrations enter your ear and send messages to your brain. Click on the image below to learn more about the different parts of the ear and the roles they play.
How does sound travel?
Sound waves can travel through solids (such as metal, stone and wood), liquids (such as water) and gases (such as air).
Watch: Investigating how sound travels
Watch the clip below to see how sounds travels through an experiment with the .
Activity 1: Fill in the gaps
Activity 2: Quiz
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