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WorksheetsThe Human Machine: Mystery 3
Total questions: 10
Worksheet time: 5mins
Name
Class
Date
1.
What happens to your pupil when the room goes dark?
a)
It opens wider to allow in more light.
b)
It shrinks to keep the light out.
2.
How do nocturnal animals see in the dark better than we can?
a)
Their eyes are stronger than ours.
b)
Their iris isn't colored.
c)
Their pupils can get larger than our pupils.
3.
True or False:
Nocturnal animals have a colored layer at the back of their eye that helps them see better.
Nocturnal animals have a colored layer at the back of their eye that helps them see better.
a)
True
b)
False
4.
Why does it sometimes look like people have red eyes when their picture is taken using a camera's flash?
a)
The camera colors eyes red.
b)
The camera's flash is lighting up the blood vessels at the back of the eye.
c)
Our eyes really have a red iris.
5.
Your pupil controls how much ___________ is allowed into your eye.
a)
sound
b)
color
c)
light
6.
The eyes of nocturnal animals have pupils that _____________ really wide to let in lots of ___________.
a)
open; light
b)
close; light
c)
stay; light
7.
When you see "red eye" in a picture of a human, you are seeing the ______________ in the retina.
a)
cornea
b)
blood vessels
c)
iris
8.
When would you want your pupils to open wide?
a)
Outside during a sunny day.
b)
Outside during a cloudy day.
c)
In a dark room.
9.
When would you want your pupil to shrink?
a)
Outside during a bright day.
b)
Outside during a cloudy day.
c)
In a dark room.
10.
What creatures scared Doug and his wife one night at their house?
a)
dogs
b)
cats
c)
skunks
d)
raccoons
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