MadSci Network: Biochemistry

Subject: Is a tattoo a physical or chemical change?

Date: Wed Mar 11 16:34:32 2009
Posted by Olivia
Grade level: 10-12 School: Independence Middle School
City: Bethel Park State/Province: Pennsylvania Country: United States
Area of science: Biochemistry
ID: 1236814472.Bc

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Re: Is a tattoo a physical or chemical change?

Greetings Olivia,

Thanks for submitting your question about tattoos to the MadSci Network. I am 
pleased to let you know that questions related to yours have been answered 
on our site. You can use our search engine to locate answers containing the word(s)
chemical change physical change :

For example, take a look at this answer:

As with the formation of a bruise, a tattoo is the accumulation of pigment in and under the skin. 
The pigment that goes into your skin is the same after you have been tattooed as it was while it 
was in the tattoo pen, so there is no chemical change involved there. Similarly, your skin is the 
same as it was before you were tattooed, except that it is now bleeding, and has had ink shot 
into it, so there is no chemical change there either. A tattoo is a physical change.

If, after reviewing the previous answers, you still have a question, feel free to 
submit a new question, but please be sure to tell us that you have already 
searched the archives, along with what is not in the archives that you want to 
have additional information about, or what in the the archived answers you do 
not understand. This will help us to give you the best answer possible.


Steve Mack, Moderator MadSci Network

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Re: Is a tattoo a physical or chemical change?

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