Light Energy (Challenging)

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Across
  1. 2. an artificial source of light
  2. 7. light, man-made light like a lamp
  3. 10. the ability to do work
  4. 11. lets all light through
  5. 14. light bouncing off a surface
  6. 15. blocks all light
  7. 16. to take in light
  8. 18. a natural source of light
  9. 19. what we see when light reflects
  10. 20. absorbs the most light
Down
  1. 1. the range of colors in light
  2. 3. where light comes from
  3. 4. lets some light through
  4. 5. a surface that reflects light
  5. 6. reflects the most light
  6. 8. energy we can see
  7. 9. light, light from nature like the sun
  8. 12. a dark shape made when light is blocked
  9. 13. light bending as it passes through
  10. 17. a tool that splits light into colors