Need major help on a science fair project!
I have a problem, see I have to do a science fair project and I mean I have to. My topic is What kind of juice cleans pennies better? I already know that it is the acid in the juice. But every place I go to find out why they don't know why or I just can't find it. So why does acid in juices clean pennies at all? How does it work, explain! I really need help!Barry Barker
- Jacksonville, Florida, USA
Hi, Barry. I just tried to answer the same question in letter 11200. Please check there.
Ted Mooney, P.E. RET
Pine Beach, New Jersey
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