The Science Behind Sight

Which part of the eye do glasses correct?

• iris

• lens

• pupil

• retina

How does the author support the idea that sight is an important sense?

• by listing the different tasks sight helps with

• by explaining that people need light to see

• by stating the names of all of the senses, including sight

• by sharing that people can see objects that give off light

The passage states that some materials reflect light. What does reflect mean?

• to use up

• to bounce back

• to make bigger

• to bring into being

What causes the pupil to become smaller?

• blinking the eye

• letting light into the eye

• being in a place that is bright

• looking at an object that is far away

The author states that animals with eyes at the sides of their heads cannot tell how far away something is. Why does the author state this?

• to explain why most animals that hunt have eyes in the front

• to explain why it is good for an animal to be able to see behind it

• to support the idea that some animals see things differently than people do

• to support the idea that the body parts of different animals perform special jobs