Types of waves

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Across
  1. 3. Sound waves, eg.
  2. 5. Can destroy buildings
  3. 8. The first word of the wave used in cancer treatment
  4. 9. Used to see heat
  5. 10. Think Invisible Ink
  6. 11. Used to see broken bones
Down
  1. 1. Acronym for all colors of Visible light
  2. 2. Used to heat food
  3. 4. Surfing these on the coast, eg.
  4. 6. What our ears hear
  5. 7. Used to communicate