Across
- 3. located at the back of the eye; turns light signals into electrical signals.
- 4. When light passes through an object (materials).
- 5. dark round circle in the colored part of the eye.
- 6. Universally represents a change in direction
- 9. When light bounces off an object.
- 10. clear like a window; helps the eye focus the light to make things look sharp and clear.
- 13. Light that isn't seen.
- 14. Representations to help explain a phenomenon.
Down
- 1. see-through, clear.
- 2. semi transparent.
- 7. when light changes directions
- 8. helps focus the light coming into your eye so you can see things clearly.
- 11. like a cable; connecting the retina to the brain
- 12. controls how wide the pupil is and how much light can pass into your eye.
- 15. not able to be seen through; not transparent.