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