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