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20 Cards in this Set
- Front
- Back
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luminous
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makes light on its own
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nonluminous
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cannot make its own light
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transparent
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allows light rays to pass through
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translucent
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allows some light rays to pass through
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opaque
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does not allow any light rays to pass through
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shadow
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dark shape caused when an object blocks light
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visible spectrum
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the colors that make up light
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reflection
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bouncing of light off an object
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refraction
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bending of light as it passes through an object
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lens
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transparent material used to bend light
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sclera
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white part of the eye
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cornea
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transparent, curved front covering of eye
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iris
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colored part of the eye
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pupil
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opening in the center of the eye
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lens of eye
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refracts light to focus it
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retina
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where the image forms on the back of eye
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optic nerve
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carries the image to the brain
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nearsighted
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can see up close but not far off
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farsighted
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can see far off but not up close
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concave lens
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bends light outward; thick at edges and thin in middle
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