When we bruise, is this a chemical or physical change?

Subject: When we bruise, is this a chemical or physical change?

Date: Wed Mar 4 15:15:28 2009
Posted by Mia
Grade level: 7-9 School: Bethel Park
City: Pittsburgh State/Province: PA Country: U.S.A.
Area of science: Biochemistry
ID: 1236204928.Bc

Message:


The teacher does not know and neither do we!! thank you for helping in any way 
that you can

Re: When we bruise, is this a chemical or physical change?

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