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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
Ppt unit 8
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Ppt unit 8

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Transcript of "Ppt unit 8"

  1. 1. Unit 8. It’s a noisy world
  2. 2. Objects which make no sounds
  3. 3. Objects which make sounds
  4. 4. Sounds can be…
  5. 5. Pleasant sounds .
  6. 6. Unpleasant sounds . noises
  7. 7. loud quiet
  8. 8. high low
  9. 9. Sounds that are bad for your health
  10. 10. What can sound travel through?
  11. 11. Sounds can travel through air
  12. 12. Sounds can travel through solids
  13. 13. Sounds can travel through water
  14. 14. Machines that make noise
  15. 15. Machines that transmit sound
  16. 16. The end
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