Light

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Across
  1. 1. colour pencils
  2. 5. when the sun sets
  3. 6. an everyday object used at night to light up rooms lightb___
  4. 9. has seven colours
  5. 12. which are thinner in the middle giving them a waist
  6. 14. same with optical
  7. 16. when light goes though the _____ the light will refrace
  8. 18. title
  9. 19. something that burns wood
Down
  1. 1. which are fatter in the middle
  2. 2. lenses only 3 words
  3. 3. incident ___
  4. 4. a colour white
  5. 7. when the sun rise
  6. 8. shines at night
  7. 10. colour of the rainbow indig_
  8. 11. bending of light
  9. 13. optical fibres
  10. 15. solar energy
  11. 17. something that shines with the moon