chapter 19 sec 1&4
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| pigment | colored substances that are used to color other materials
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| secondary colors | two primary colors combine in equal amounts
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| transparent | transmits most of the light that strikes it
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| iris | a ring of muscle that contracts and expands to change the size of the pupil
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| cones | cells that respond to color
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| nearsighted | person can see nearby objects clearly, but distant objects are blurred
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| optic nerve | rods and cones signals to the brain along a short, thick nerve
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| complementary | primary color and a secondary color that can combine to form white light
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| cornea | light enters through the transparent front surface
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| opaque | reflects or absorbs all of the light it strikes
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| farsighted | person can see distant objects but nearby objects are blurred
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| pupil | light passes through an opening in the eye
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| primary | three colors that combine to make any other color
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| translucent | scatters light as it passes through
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| retina | a layer of cells that lines the inside of the eyeball
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| rods | are cells that contain a pigment that responds to small amounts of light
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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