science! OHHH YEAHHH

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Across
  1. 3. The perception of how high or low a sound seems
  2. 5. is a back-and-forth or an up-and-down movement of an object
  3. 7. causes the particles in a medium to move parallel to the direction that the wave travels.
  4. 9. top of wave
  5. 11. is a wave that travels only through matter
  6. 12. wave is a longitudinal wave that can travel only through matter
  7. 13. of a wave is the maximum distance that the wave moves from its rest position.
Down
  1. 1. bottom of wave
  2. 2. material in which a wave travels
  3. 4. is the amount of sound energy that passes through a square meter of space in one second
  4. 6. of a wave is the number of times the pattern repeats in a given time
  5. 8. is a disturbance that transfers energy from one place to another without transferring matter
  6. 10. a wave in which the disturbance is perpendicular to the direction the wave travels