science
Grade6
Easy
Question
What happens to the size of the pupil when a person gets out of the house on a sunny day?
- Decreases
- Increases
- Stays the same
- None of the above
Hint:
We need less light to see in the sun.
The correct answer is: Decreases
The pupil can change size in response to light. Outdoors on a sunny day, the pupil is very small. The pupil constricts, letting less light into the eye. In a dark environment, the pupil dilates to let in more light. Pupil size also changes depending on whether you are looking at near or far objects.
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