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August 30, 2014

Homework Help: science

Posted by From a Mom on Monday, September 17, 2012 at 10:57pm.

I need a little assistance. Can you help?
The question which seems to be simple enough is
What is a physical change? My son answered -
A physical change is any change that alters the form or appearance of matter into a different substance.
I do not agree. He is missing something. I would answer - A physical change is any change that alters the form or appearance of matter but does not make any substance in the matter into a different substance. What do you think his teacher would say is correct?

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