Electromagnetic Spectrum

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Across
  1. 1. The range of electromagnetic waves from radio waves to x-rays
  2. 5. The direction energy is carried as a light wave moves forward
  3. 6. A beam of light of a single wavelength focused in a single direction
  4. 7. The type of light that helps humans see the world
  5. 8. A dark area where light is blocked by an object
  6. 9. A form of electromagnetic energy, some of which is visible
Down
  1. 2. A type of wave that comes from the sun
  2. 3. A type of wave that forms an S shape
  3. 4. A type of wave that is used in "night vision" equipment