the total energy of all of the particles in an object
a change in matter that produces one or more new substances
any change that alters the form or appearance of matter, but does not make any substance in the matter into a different substance
law of conservation of mass
matter is not created or destroyed in any chemical or physical change
the ability to do work or cause change
a measure of the average energy of random motion of particles of matter
a change in which energy is taken in
a change in which energy is released
a substance that undergoes a ______ change is still the same substance after the change
examples of physical changes
dissolving, bending, crushing, breaking, chopping
a ________ change produces new substances with properties different from those of the original substances
examples of chemical changes
combustion, electrolysis, oxidation, tarnishing
every chemical or physical change in matter includes a change in ________
________ is related to the amount of thermal energy an object has
temperature is related to the amount of ________ an object has
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