light by alina feb 21, 2019

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Across
  1. 4. what is the transparent outer surface from eye
  2. 7. what color did red light and blue light produced?
  3. 8. what color did green light and red light produced?
  4. 10. what is the form of light?
  5. 12. form of energy that released from a luminous object
  6. 13. what is the light-sensitive layer of eye?
  7. 14. smaller lines of lights
  8. 18. the last name of french physicist who made instrument to measure the speed of light for the first time
  9. 20. a region without light that formed behind an opaque object
Down
  1. 1. range of colors
  2. 2. the primary color is red, blue, and...
  3. 3. a classification of non luminous object
  4. 5. the last name of the dutch physicist that put forward wave theory
  5. 6. the appearance of an object in a smooth shiny surface
  6. 9. what's the name of the white part of the eye
  7. 11. objects that emit lights are said to be?...
  8. 15. what color did red light, blue light, and green light produced?
  9. 16. what color did yellow light and magenta light produced?
  10. 17. what color did blue light and green light produced?
  11. 19. non luminous body in the sky that reflects sunray on the night