Science
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4 terms
Terms | Definitions |
|---|---|
 physical change | do not change the type of the matter. ex: could be change in mass, vol., density, are size. |
| chemical change | the substance present at the beginning of the change are not present at the end; new substance are formed |
| law of conservation matter | matter is conserved> type of atoms does not change |
| law of conservation of mass | mass is conserved> amount of atoms cannot change nothing is created or destroyed |
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