What color is fresh, pure copper?
AnswerReddish-orange
Clean copper has a warm reddish-orange shine.
Science · Facts & stats
Cu facts & stats
7 fact-checked facts about copper, the element with the symbol Cu, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
Why is copper widely used in electrical wiring?
AnswerIt is an excellent conductor of electricity
Copper conducts electricity very well and is easy to shape.
Going deeper
Bronze is an alloy of copper and which metal?
AnswerTin
Classic bronze is copper mixed with tin.
Brass is an alloy of copper and which metal?
AnswerZinc
Brass combines copper with zinc.
Since 1982, the US penny has been made mostly of zinc with a coating of what?
AnswerCopper
Pennies are copper-plated zinc.
Expert level
Which country has long been the world's largest copper producer?
AnswerChile
Chile has led world copper mining for decades.
Copper's melting point is closest to which temperature?
Answer1,085 degrees C
Copper melts at about 1,085 degrees C.
Know these cold?Today's round is five questions like these, 20 seconds each. Your streak and level follow you to every arena.Play today's round