Sound

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Across
  1. 2. The sound cannot travel through this.
  2. 3. Which part of human ear detects the sound.
  3. 4. This property of the sound is determined by its amplitude.
  4. 6. The bones in human ear.
Down
  1. 1. This property of the sound is determined by its frequency.
  2. 2. What produces sound?
  3. 5. The sound travels fastest through this medium.