What is a pupil?

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Explore Alberta's Grade 8 Science curriculum on Light and Optical Systems. Test your knowledge with engaging quizzes including flashcards and multiple choice questions. Prepare effectively for your exam!

Multiple Choice

What is a pupil?

Explanation:
The pupil is the opening in the iris that lets light into the eye. It isn’t a fluid-filled space, a jelly-like tissue, or a light-sensing cell. Light travels through the cornea and the fluid-filled front part of the eye, passes through the pupil, then the lens and vitreous, to reach the retina. The iris can widen or narrow the pupil to control how much light enters, making the pupil appear larger in dim light and smaller in bright light.

The pupil is the opening in the iris that lets light into the eye. It isn’t a fluid-filled space, a jelly-like tissue, or a light-sensing cell. Light travels through the cornea and the fluid-filled front part of the eye, passes through the pupil, then the lens and vitreous, to reach the retina. The iris can widen or narrow the pupil to control how much light enters, making the pupil appear larger in dim light and smaller in bright light.

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