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A change in which the atoms or molecules in a substance stay the same.<ref>Wile, Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998.</ref>
 
A change in which the atoms or molecules in a substance stay the same.<ref>Wile, Jay L. ''Exploring Creation With Chemistry''. Apologia Educational Ministries, Inc. 1998.</ref>
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Some examples include changes in the state of matter: melting (solid to liquid), evaporation (liquid to gas) and [[sublimation]].  Many times, dissolution is also a physical change, such as when [[salt]] is dissolved, as the water can be evaporated.
    
==References==
 
==References==
 
<references/>
 
<references/>
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