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A physical change is a change that happens to an object or substance through physical reactions. A chemical change is a change that happens to an object or substance through chemical
http://answers.ask.com/Science/Other/what_are_phys...
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a physical change can be reversed but a chemical changes is not. you can all tell the different from a physical and chemical change by seeing if the color or if the substances is
http://wiki.answers.com/Q/How_are_chemical_and_phy...
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Physical changes have to do with the exterior of the object, like a change is shape, color, form etc. Chemical changes have to the interior with object such as a penny rusting.
http://wiki.answers.com/Q/How_is_physical_and_chem...
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Physical change does not produce a new substance. Chemical change produces a new substance
http://wiki.answers.com/Q/How+are+chemical+and+phy...
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