Iron is a metal that we dig out of the ground and use to make everything from kitchen knives to skyscrapers. Most of the iron we use comes out of rocks. But do *all *rocks have iron in them? We asked geochemist Kelsey Woody to help us find the answer.
Got a question that’s totally metal? Send it to us at BrainsOn.org/contact), and we’ll help *iron out *the answer!
