Crossword wave puzzle

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Across
  1. 4. he spiral cavity of the inner ear
  2. 7. the lowest point of something
  3. 10. a tiny bit of mass
  4. 13. Membrane membrane in the cochlea
  5. 14. the distance between two identical points
  6. 17. point the original source or foundation of which something starts
  7. 18. drum a thin, cone-shaped tissue separating the outer ear from the middle ear,
  8. 19. loud amplitude
  9. 20. having or producing a great intensity of sound
Down
  1. 1. on complete repetition of a wave pattern
  2. 2. the highest point top or maximum of something
  3. 3. Maximum distance from its resting point to it peak
  4. 5. has fewer waves per a second
  5. 6. to make something less in size
  6. 8. how often a wave vibrates
  7. 9. a raped and repetitive back and forth motion
  8. 11. low amplitude
  9. 12. a fundamental property of matter,
  10. 15. bone
  11. 16. cells specialized sensory receptors in the inner ear that convert sound vibrations into electrical signals for the brain,