Science

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Across
  1. 3. sprinting
  2. 4. wave Is a longitudinal wave that can travel only through matter
  3. 10. Friction between the wind at sea and the water forms what
  4. 12. Is the amount of sound energy that passes through a square meter of space in one second
  5. 13. frequencies between about 20 Hz and 20,000 Hz.
  6. 15. The perception of how high or low a sound seems is what
  7. 16. The distance between one point on a wave to the same on the next wave is the
  8. 18. Emegercy signal
  9. 19. Space entirely devoid of matter
Down
  1. 1. above this range are called what
  2. 2. Is the number of times the pattern repeats in a given time
  3. 5. Bottom of the wave
  4. 6. Transfers energy
  5. 7. Is a numeric scale that measures the relative explosivity of historic eruptions
  6. 8. Top of the wave
  7. 9. Master of increased science
  8. 11. The maximum distance that the wave moves from its rest position
  9. 14. Produced by vibrations
  10. 17. wave An earthquake wave is called a what