Why do pennies corrode?

Answer With the single exception of the years of World War II, the American penny, from 1864 to1962, was made of bronze composed of 95 percent copper and 5 percent zinc and tin. From 1962 to 1982 it was c... Read More »

Top Q&A For: Why do pennies corrode

Why Do Battery Cables Corrode?

Corroded battery cables don't just look bad under your hood - corroded cables also limit the amount of current flowing to and from the battery. That doesn't only make it harder for your battery to ... Read More »

How to Make Aluminum Corrode Quickly?

Unlike other metals, aluminum's corroding process doesn't involve rusting. When directly exposed to oxygen the surfaces of aluminum begin to turn white and can flake off. This process is called oxi... Read More »

Things That Corrode Copper?

Copper is a ductile metal with a high electrical and thermal conductivity. It is used for plumbing, jewelry, building and electronics. Old items made from copper inevitably display signs of corrosi... Read More »

What does"corrode"mean?

If something has corroded, it has worn away gradually over time. A good example of corrosion is metal that has rusted after being exposed to the elements for a long time. "Corrode" comes from the L... Read More »