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Use the diagram to fill in the gaps.

1. The white part of the eyeball is called the _____.

It has the important job of covering most of the eyeball.

2. Behind the cornea is the ______. It’s the colourful part of the eye.

It has _______ attached to it that change its shape –

this allows the iris to control how much light goes through the pupil.

3. The ______ is the black circle in the center of the iris.

It’s really an opening in the iris & lets _____ enter the eye.

4. The cornea, a transparent dome, sits in front of the coloured eye.

The cornea helps the eye ______.

5. After light enters the pupil, it hits the lens.

The lens sits behind the iris and is clear and colourless.

The lens’ job is to focus light rays on the back of the eyeball – a part called the ________.

The retina sends messages (by the optic nerve) to the brain

so we understand what we are seeing.