Unit 8. It’s a noisy world
Objects which make no sounds
Objects which make sounds
Sounds can be…
Pleasant sounds .
Unpleasant sounds .
noises
loud quiet
high
low
Sounds that are bad for your health
What can sound
travel through?
Sounds can travel through air
Sounds can travel through solids
Sounds can travel through water
Machines that make noise
Machines that transmit sound
The end
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