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V
100
I reflect off objects and enter your eyes. I bend to help you see. Your sight depends on me. What am I?
I am light.
100
Objects appear upside down on me. I live at the back of your eyeball. What am I?
I am the retina.
100
I am the part of your eye that is colored. Sometimes I'm green, but I could be brown, gray, blue. What am I?
I am the iris.
200
True or False: Liquid and jelly are inside of the eyes.
True. Liquid and jelly are inside the eyes.
200
True or False: To see, light needs to bounce off the objects you are looking at.
True. Light bounces off objects you are looking at.
200
When the cornea and lens of the eye are not the right shape, your vision will become. . .
a. blurry
b. focused
c sharp
When the cornea and lens of the eye are not the right shape, your vision will become blurry.
200
When nearby objects are seen clearly, but distant objects are out of focus.
a. nearsightedness
b. farsightedness
This is a. nearsightedness.
200
Distant objects are seen clearly, but nearby objects are out of focus.
a. nearsightedness
b. farsightedness
B. Farsightedness is when distant objects are seen clearly, but nearby objects are out of focus.
300
What is the purpose of the pupil?
a. It protects the eye.
b. It controls the amount of light that enters the eye.
c. It circulates blood and oxygen.
The pupil b. controls the amount of light that enters the eye.
300
What are the three important parts inside the eye?
a. cornea, pupil, iris
b. lens, retina, optic nerve
c. sclera, lens, iris
B. lens, retina, optic nerve are the three important parts inside the eye.
300
The clear disc that focuses the image on the retina is called. . .
a. cornea
b. lens
c. pupil
b. The lens is the clear disc that focuses the image on the retina.
300
Images appear upside down on the ________, and the information is sent to the brain.
a. lens
b. cornea
c. retina
Images appear upside down on the c. retina, sending the information to the brain.
300
The retina sends electrical energy to the brain via the . . .
a. spinal cord
b. vertebrae
c. optic nerve
C. The optic nerve sends messages to the brain.
400
There are six __________ that control your eyes' movements.
Six muscles control your eyes' movements.
400
The white outer layer of the eye is called. . .
a. cornea
b. iris
c. sclera
C. the sclera is the white outer layer of the eye.
400
The thin, tough, transparent tissue that lets light pass through is called the . . .
a. sclera
b. cornea
c. iris
B. the cornea is the thin, tough, transparent tissue that lets light pass through.
400
The colored part of your eye is called. . .
a. cornea
b. pupil
c. iris
C. the iris is the colored part of your eye.
400
What is the dark circular hole of the eye called?
a.pupil
b. iris
c. cornea
A. the pupil is the dark circular hole of the eye.
500
What are the two holes in your cranium that protect your eyeballs called?
They are called eye sockets.
500
What is the purpose of eyelids?
The eyelids protect the eyes and keep them moist by spreading tears over them.
500
What is the purpose of tears?
Tears keep your eyes moist and help fight germs.
500
What specific part of the eyes are drains for your tears?
a. salivary glands
b. tear ducts
c. pituitary glands
B. Tear ducts are the drains for your tears.
500
What is the purpose of eyelashes?
The eyelashes keep dust particles out of the eyes.