Human Eye

What is the cornea?

• The clear front surface of the eye.

• The black hole at the center of the eye.

• The thin circular structure in the eye.

• The lens of the eye.

Tags

NGSS.MS-LS4-2

What is the job of the lens of the eye?

• To act like a camera lens.

• To decide what should be the amount of light that enters the eye.

• To focus and defocus depending on how far the object is from your eye.

• To transmit electronic signals to the brain.

What is the iris?

• The clear front surface of the eye.

• The black hole at the center of the iris.

• The thin circular structure in the eye that decides how much light enters the eye.

• The receptor.
  

4. What does the optic nerve do?

• It decides what should be the amount of light that enters the eye.

• It focuses and defocuses depending on how far the object is from your eye.

• It transmits electronic signals to the brain.

• It acts as an image sensor of a digital camera.

Tags

NGSS.MS-LS1-8

How many times does a person blink on average in a minute?

• 17

• 10

• 7

• 20

What flips the image back for you?

• The cornea.

• The iris.

• The retina.

• The brain.

Draw a picture of the eye. Make sure to include the cornea, the iris, the pupil, and the lens, and the retina.