Multimedia Gallery - This image shows copper in ore. The penny is 97.5 percent zinc and 2.5 percent copper.

2018 U.S. Copper Penny: 579,100 ppm Zinc & 419,200 ppm Copper

Why the penny still makes cents

PPT - Bell Ringer 10/1/10 - minutes PowerPoint Presentation, free

⏩SOLVED:An American penny is 97.5 % zinc and 2.5 % copper and has

Flip a coin: heads, the penny stays in circulation; tails, it doesn't

Your penny may be worth $18,000 - the exact 'small date' error to

Copper in the Arts: Issue #106

Collector finds rare bronze 1983 Lincoln cent in circulation

SOLVED: In 1982, the US Mint changed the composition of a penny to