Light and the Eye Reading and Questions

What is your answer to number 1?

• a

• b

• c

• d

• e

What is your answer to number 2?

• a

• b

• c

• d

• e

What is your answer to number 3?

• a

• b

• c

• d

• e

What is your answer to number 4?

• a

• b

• c

• d

• e

What is your answer to number 5?

• a

• b

• c

• d

• e

________ are transparent objects with at least one curved surface.

• pupil

• iris

• lens

• sclera

As the light passes through the cornea or lens, it is ____________ or bent.

• refracted

• reflected

• absorbed

• broken

The _____ has muscles that expand or contract the pupil

• cornea

• iris

• retina

• optic nerve

The _________ is an area of light-sensitive cells that absorbs light rays and changes them to electrical signals

• sclera

• pupil

• iris

• retina

The retina changes the light rays into electrical signals that are sent through the _____________ _________________ to the brain, where what you are seeing is identified.

• auditory nerve

• eyeball nerve

• optic nerve

• vision nerve