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science words

vocab words

QuestionAnswer
physical change Alters the form or appearance of matter but dose not turn any substance in the matter into a different substance.
chemical change A change in matter that produces one or more new substances is a _______ or chemical reaction.
law of conservation of mass The fact that matter is not created or destroyed in any chemical or physical change.
temperature A measure of how hot or cold something is.
thermal energy The total energy of motion of all of the particles in an object.
endothermic change _the melting of ice is an _______ _______ a change in which energy is absorbed.
exothermic change Releases energy.
chemical energy The energy stored in the chemical bounds between atoms is a form of energy.
Created by: mklem
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