Loose change
Taken for the Scavenger Hunt's chemistry month - Cu copper. Newer coins are not made of copper but of steel and have a coating of copper older ones have about 97% of copper in their make-up
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Uploaded on July 23, 2013
Taken on July 23, 2013
Loose change
Taken for the Scavenger Hunt's chemistry month - Cu copper. Newer coins are not made of copper but of steel and have a coating of copper older ones have about 97% of copper in their make-up
196
views
0
faves
2
comments
Uploaded on July 23, 2013
Taken on July 23, 2013