The Science Behind Sight

How do lenses in glasses work?

• They turn images upside down so the brain has to do less work.

• They bend light to focus it on the right spot on the retina.

• They help the eye to see what is moving on all sides.

• They let more light into the pupil.

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

Tags

CCSS.RI.3.2

CCSS.RI.4.2

CCSS.RL.3.1

CCSS.RL.4.1

CCSS.RL.5.2

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

Tags

CCSS.RI.3.4

CCSS.RI.4.4

CCSS.RL.3.4

CCSS.RL.4.4

CCSS.RL.5.1

What is the meaning of the word transparent?

• doesn't let light pass through

• when light bounces off a surface

• clear, lets light pass through

• gives off light

Tags

CCSS.RI.3.4

CCSS.RI.4.4

CCSS.RL.4.4

CCSS.RL.5.1

CCSS.RL.5.4

When an eyelid blinks, it washes the dust and other things off the eye with _____.

• water

• sweat

• tears

• blood

Why do objects in a dark room appear black?

• The objects are black.

• There is no light to help you see.

• You need glasses.

• Your pupil can't take in a lot of light.

Why do we see luminous things?

• They give off light.

• Our eyes let us see them.

• Light is shone on them.

• They are big enough to see.

The image that the lens sends to the retina is______.

• right side up

• upside down

• inside out

• tilted

What causes the pupil to become smaller?

• blinking the eye

• being in a place that is dark

• putting bright light into the eye

• 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

Tags

CCSS.RI.2.5

CCSS.RI.3.5

CCSS.RI.4.5

CCSS.RI.5.5

CCSS.RI.6.5