Loud or Soft? High or Low?: A Look at Sound

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Across
  1. 2. When sound waves make your ear drum vibrate, the _________ turns the vibrations into messages.
  2. 6. A sound is louder when sound waves are _____, or closer together.
  3. 9. The faster something vibrates, the ______________ the pitch.
  4. 11. Sound waves can travel through _____________ in the air.
  5. 12. ______________ is caused when two things rub together, like your hands. It creates vibrations and sound.
  6. 15. The slower something vibrates, the _______________ the pitch.
  7. 16. drum, When sound waves reach your ear, they make the __________________ vibrate.
  8. 17. If air travels a ___________ way through an instrument, it makes a high sound.
  9. 18. Quiet or loud describes a sound's _____________.
  10. 20. A ______________ is a tool that can focus sound waves and make your voice louder.
  11. 21. True or False: Sound waves can travel through solid objects.
Down
  1. 1. Sound waves can travel through ____________. Many animals communicate underwater.
  2. 3. ____________ describes how low or high a sound is.
  3. 4. The ____________ from a push can make an object vibrate and create sound.
  4. 5. If air travels a long way through an instrument, it makes a _______ sound.
  5. 7. On string instruments, the shorter the string, the _____________ it vibrates, so the pitch is higher.
  6. 8. When sound waves are spread out, a sound is ________________ to hear.
  7. 10. cords, Air passes through our ___________________. The air makes them vibrate.
  8. 13. We hear sounds when something ________________.
  9. 14. Sound ___________, or bounces, off objects.
  10. 19. An _________ is a reflected sound.