The Amazing Human Eye

The Amazing Human Eye

Read each question carefully and answer to the best of your ability. Good luck!

1. What part of the eye controls the amount of light that enters?

2. Which part of the eye is responsible for focusing light onto the retina?

3. The   is a transparent outer layer that protects the eye and helps focus light.

4. The light-sensitive layer at the back of the eye is called the  .

5. Label the following parts of the eye:

A:  

B:  

C:  

D:  

6. Explain the function of the optic nerve.

7. The iris is the colored part of the eye.

8. Rods and cones are types of cells found in the pupil.