waves

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Across
  1. 2. how often a wave occurs
  2. 4. material through which waves can travel.
  3. 5. the bottom of the wave
  4. 8. the place on a wave that is pushed together.
  5. 9. how tall the wave is
  6. 10. wave waves that require a medium to travel.
Down
  1. 1. waves can travel through matter or empty space where matter is not present.
  2. 3. the top of the wave
  3. 6. the place on a wave that is moving apart.
  4. 7. spectrum all of the frequencies or wavelengths of electromagnetic radiation.