Alberta Grade 8 Science – Light And Optical Systems Practice Test

What is the function of the cornea?

The hole that lets light into the eye To give the eye shape To absorb excess light rays The transparent jellylike tissue filling the eyeball behind the lens

Correct Answer:

To give the eye shape

Explanation:

The cornea is the clear front surface of the eye that helps shape the eye and begins focusing light by bending it. Among the options, the one about giving the eye its shape fits best because the cornea is part of the eye’s outer layer that contributes to the eye’s curved front, which helps maintain the eye’s overall shape. The other options refer to features that aren’t the cornea: the hole that lets light in is the pupil, the cornea doesn’t absorb light like a filter, and the jellylike tissue behind the lens is the vitreous humor. So, giving the eye its shape is the choice that aligns most closely with the cornea’s role in the eye’s structure.

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