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Science fair project - copper oxide
I am doing my science fair project this year on what solutions make the copper oxide that you would see on copper pennies. I have already tried a few things but its not working all that well. Can you help?
Katie B [last name deleted for privacy by Editor]
- Winter Springs, Florida, U.S.A
I haven't tried it myself, Katie, I'm just guessing -- but how about putting the penny in a frying pan with a small amount of water and slowly boiling the water away. Good luck.
Ted Mooney, P.E.
Pine Beach, New Jersey
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