LIGHT

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Across
  1. 3. a type electromagnetic radiation
  2. 4. a form of electromagnetic radiation similar to
  3. 6. a type of electromagnetic radiation that has
  4. 7. light
  5. 8. disturbance that moves energy from one place to
  6. 9. any direction
  7. 10. the rate of change of position of an object
Down
  1. 1. light from the sun
  2. 2. relating to gamma rays
  3. 5. a arch of colours in the sky
  4. 7. able to be seen