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Finley Science Terms

words needed for success in 7th grade science

QuestionAnswer
catalyst a substance that changes the rate of a chemical reaction without being used up or changed very much
density the ratio of a mass of a substance to the volume of the substance
friction a forced resistence between 2 objects due to the roughness of the surfaces
heterogeneous a group of different things
homogeneous a group of the same things evenly distributed throughout
Created by: GCLTG
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