science and waves crossword puzzle

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Across
  1. 4. The distance between the rest position and the peak height
  2. 7. A type of wave that can only pass through a solid, liquid, or gas
  3. 9. The line where there is no disturbance
  4. 10. The closer parts together of a longitudinal wave
Down
  1. 1. The distance from the top of one wave to another
  2. 2. The further apart lines of a longitudinal wave
  3. 3. The direction a wave's motion goes along compared to it's direction of energy travel
  4. 5. A type of wave that can go through vacuums
  5. 6. The peak height of one wave
  6. 8. The lowest height of a wave