organs of the human body.
through their eyes.
on the amount of melanin in the
body. Eye colors can be brown, blue,
light.
Seeing occurs when eyes detect and
focus on these images.
optics. Light receptors present in the
into images.
Rods and cones are the two types
of light receptors. Rods are more
and details.
impulses to the brain.
Blindness is the inability to see.
Blindness can be temporary or
permanent.
Causes of blindness include, but
are not limited to, injury to the
eyeball, damage to the
and trauma to the brain
Source 2: The Eyes
Page 59 LANGUAGE ARTS PERFORMANCE TASK GRADE 4