SCIENCE

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Across
  1. 1. sound travels slowest through this medium
  2. 3. an area where the particles of a wave are closest
  3. 4. sound travels fastest through this medium
  4. 5. the distance between one compression to the next
  5. 7. vibration that can be heard
  6. 8. a rapid back-and-forth movement
  7. 9. the # of waves that pass a point in one second
  8. 10. something for sound to travel through
  9. 12. the area of a wave where the particles are farthest apart
Down
  1. 2. the height of a wave
  2. 6. sound waves are ____ waves
  3. 11. sound cannot travel through this