The term "rust" usually refers to the process of oxidation of iron-based materials. Pennies do oxidize, but this oxidation is called "patina" or "verdigris". Newer pennies are made of zinc with a thin film of electroplated copper over the top. Zinc can also corrode, as well, but it's not called "rust". So the logical answer would be "No, pennies do not rust..."Hope that helps have a nice day =)
