Across
- 2. cells that allow you to see color
- 3. three colors that combine to form white light
- 5. ring of muscle that contracts and expands to change the size of pupil. also gives the eye its color
- 6. color substances that are used to color other materials
- 8. eye is too short,which causes to see objects close up as blurry
- 10. opening of the eye that allows light to center
- 11. sends a signal to the brain along a short thick nerve
Down
- 1. eye is too long,which causes a person to see objects in the distance blurry
- 2. any two colors that combine from white light
- 4. layer of cells that lines the inside of the eyeball. it is made up of rods and cones
- 7. cells that allow you to see dim light
- 9. transparent cover of the eye