What is the primary reason objects are visible to us?

The Anatomy Of The Human Eye And Its Functions

Interactive Video
•
Biology, Science, Physics
•
6th - 8th Grade
•
Hard

Patricia Brown
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
They are transparent.
They reflect light into our eyes.
They absorb all light.
They emit their own light.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the main function of the cornea?
To change eye color.
To detect light intensity.
To refract and protect.
To produce tears.
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part of the eye determines its color?
Cornea
Retina
Lens
Iris
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How does the iris control the amount of light entering the eye?
By adjusting the size of the pupil.
By changing the shape of the lens.
By moving the retina.
By altering the cornea's thickness.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What type of lens is found in the human eye?
Convex lens
Concave lens
Bifocal lens
Flat lens
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Where is the light focused in a normal eye?
Behind the retina
On the retina
In front of the retina
On the cornea
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the two types of nerve cells in the retina?
Rods and cones
Cones and cylinders
Rods and spheres
Cylinders and spheres
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