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vocab

Science vocab for 9/16/2010

QuestionAnswer
independent variable Variable that is adjusted to different values by the experimenter (variable you change)
dependent variable Variable that changes when the factor being tested is changed (data you collect)
weight A measure of the force of gravity on an object
mass A measure of how much matter is in an object
volume The amount of space that matter occupies
density The ratio of the mass of a substance to its volume
physical change A change in a substance that does not change its identity.
chemical change A change in which one or more substances combine or break apart to from new substances
Created by: jaycat76
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