What's the name of the colored part of the eye?
Iris
What's the name of the white part of the eye?
Sclera
Which part of the eye enlarges or contacts depending on the amount of light that comes in?
The pupil
Which parts of the eye help keep it clean?
The eyelid and the eyelashes.
Which part of the eye helps it focus?
The cornea
How does the eyelid help keep the eye clean?
By opening and closing several times.
On which part of the eye does the image appear upside - down?
On the retina
How much does the human eye weigh?
About 7 grams
How wide is the human eye?
About 2,5 cm.
What comes out of our eyes when we cry?
Tears
Which part of the eye bends the rays of light and focuses the image on the retina?
The lens
When we focus something close to us does the lens become thinner or thicker?
Thicker
