You can see an object when light is _____________ by your eye.

Something that gives out light is _____________.

Light travels in ____________ lines.

What can light travel through?

How fast does light travel?

The ray that hits the mirror from your ray box is called the __________ ray.

The ray that reflects off the mirror is called the __________ ray.

Reflection from a rough surface is called _______________.

As the light leaves water, the direction it is travelling in changes direction. This is called ________________.

The lens in each of your eyes is a ______________.

The point where the rays cross is called the ___________ point.

A muscle that controls the size of the eye?

The transparent outer part of your eye?

The layer of light sensitive cells at the back of the eye?

A paired sensory nerve that runs from each eye to the brain.

You can use a ___________ to split white light in a spectrum.

Violet has a higher ______________ than red.

This is NOT a primary colour of light.

This is NOT a secondary colour of light.