science
Grade6
Easy
Question
Which of the following parts of the eye controls the amount of light entering the eye?
- Pupil
- Cornea
- Iris
- Eye lens
Hint:
The colored part of the eye controls the light.
The correct answer is: Iris
- The iris is the colored part of the eye. The pupil is controlled by the iris muscles. This is a small black opening that allows light to pass through the eye.
- The color of the iris is like a fingerprint. It's all about you and no one in the world has the exact same eye color.
- The iris muscles control the pupil. As the pupil dilates (dilates), more light enters the eye. If it is narrow (shrinks), it will be difficult for light to enter.
- As the iris squeezes or moves away from the pupil, it changes the amount of light reaching the rest of the eye.
- This constant resizing helps to see different lighting.
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