science words

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Across
  1. 3. are the part of the wave were the wave particles are furthest apart
  2. 5. when things are pressed together
  3. 6. in the form of a liquid,gas,or solid to pass through
  4. 9. or the way waves travel
  5. 10. or the absence of matter
Down
  1. 1. when something moves fast
  2. 2. the highness or lowness of sound
  3. 4. also a compression wave
  4. 7. the ability to do work
  5. 8. we hear it everyday