word chart (sience)

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Across
  1. 4. when light goes through matter
  2. 5. the direction light travels
  3. 6. a diagram drawing or representation to show how sothing works
  4. 8. to figure out sientific practace
  5. 13. something that happens in the natual world that we wonder about
  6. 15. when light bounces off matter
  7. 17. an object that can be seen though
  8. 18. when matter takes in light
  9. 19. a rule
  10. 20. a mesurment of light
Down
  1. 1. the variable we can messure
  2. 2. a change in the direction of light because of the makup of the matter it interacts with
  3. 3. the solid back put onto the back of a mirror
  4. 7. an object that prodices light
  5. 9. a set of parts that function as a team
  6. 10. the variable we can change
  7. 11. matter that can not be seen though
  8. 12. nerve that sends a signal from the retna to the brain
  9. 14. a mirror that can reflect on one side and see through on the other
  10. 16. back of the eye