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Science Test
Ch.3
Term | Definition |
---|---|
gingivitis | a gum disease |
plaque | a sticky deposit on teeth |
orthodontia | the straitening of crooked teeth |
decibels | the loudness of sounds measured in units |
astigmatism | a problem in which you see things blurry |
farsighted | u can see far but u cant see near |
nearsighted | u can see near but u cant see far |
myths | advertisements that are false |