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Sounds (Bitesize)
Read the information on sounds. Find out that sounds are vibrations and learn about pitch and loudness. Then try the activity and take the quiz.

How we hear
Watch this and use the special goggles to investigate different sounds with Proton the cat. Find out whether you can always hear an elephant and see what sound waves for different sounds look like.

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 pitch and volume
 ear drum
 noise and hearing
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