SCIENCE

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Across
  1. 2. bending light
  2. 4. allowing light to pass through
  3. 6. cant see through it
  4. 8. fake light
  5. 9. it is a color
  6. 12. you can see through it
  7. 15. straight line
  8. 16. the class you are in
  9. 17. gives off its own light
Down
  1. 1. where the light comes from
  2. 2. it is bad for you
  3. 3. single line off the source
  4. 5. does not give off its own light
  5. 7. there is a pair on your feet
  6. 10. flat surface
  7. 11. you can see yourself
  8. 13. reflecting things
  9. 14. lights up the room