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LESSON : 1 SCIENCE

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  • the organs for seeing.
    EYES
  •  15
  • Either of the pieces of skin above and below the eye.
    eyelid
  •  15
  • one of the hairs growing on the edge of the eyelids.
    eyelash
  •  20
  • a single tear that comes from your eye
    teardrop
  •  15
  • a drop of liquid that comes out of your eye when you cry.
    tear
  •  15
  • They protect the eyeballs from foreign bodies, like sand and dirt
    eyelashes
  •  20
  • They protect the eyes from mechanical damage like poking, hitting, or glaring light.
    eyelids
  •  20
  • Tears also contain an _________that destroys bacteria.
    enzyme
  •  20
  • Enumerate the external parts of the eyes
    eyelashes, eyelids, and the lacrimal apparatus.
  •  20
  • the white part of the eye.
    eyeball
  •  20
  • This is the transparent window of the eye where light enters.
    cornea
  •  20
  • Enumerate t he internal parts of the eyes
    the sclera, cornea, retina, lens, and pupil.
  •  20
  • found at the back of the eyeball contains millions of receptor cells of rods and cones.
    retina
  •  20
  • Retina are connected to the optic nerve that transmits to the brain what results in_______
    vision
  •  15
  • is the inflammation of the eye caused by an infection, allergies or too much exposure to the sun.
    Conjunctivitis
  •  15
  • an infection of the eyelids.
    Sty
  •  20