zinc

Economics Business 3 of 3 appearances
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"zinc" appearances by year

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# Clue Answer As Given Value Round Category Air Date Show
1943 pennies were coated with this metal, now used as the penny's core zinc $500 J AMERICAN MONEY 1997-02-18 #2877
While the core of a quarter is copper, the core of a penny is this zinc $500 J MONEY 1990-09-21 #1390
The current U.S. penny is made of this metal coated with copper zinc $300 J MONEY 1989-10-27 #1185
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