Electromagnetic spectrum

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Across
  1. 3. wavelengths longer than those of visible light
  2. 7. longest wavelength electromagnetic wave
  3. 8. used in a heating appliance in the kitchen
Down
  1. 1. doctors use to see the skeletal system
  2. 2. light the small amount of waves a human can see
  3. 4. spectrum the entire range of light that exists
  4. 5. ray most energy of all the waves in the electromagnetic spectrum
  5. 6. shorter wavelengths than visible light