4 Written Questions

1. helps keep dust away.
2. opening in the eye through which light enters.
3. screen in the innermost part of the eye.
4. blocks water or liquid falling down from the forehead to the eyes.

3 Multiple Choice Questions

1. keeps the cornea moist (wet). It also closes to shield the eye from irritating substances like dust and from strong light.
   1. Eyelids
   2. Iris
   3. Eyelashes
   4. Eyebrows
2. something that is useful to the main part.
   1. Cornea
   2. Retina
   3. Accessory part
   4. Eyebrows
3. sends messages to the brain.
   1. Iris
   2. Optic Nerve
   3. Cornea
   4. Retina

3 True/False Questions

1. Cornea → transparent layer covering the front of the eye.

   True        False

2. Lens → focuses image on the screen of the eye.

   True        False

3. Iris → colored part of the eyes.

   True        False