Uh oh, your favorite shirt is all wrinkly – and it’s Picture Day! Not to worry, your handy dandy household iron can smooth out all those wrinkles using heat. But why does an iron have to be so hot? We asked chemist Mark Lorch to help us find the answer.
Got a question that’s wrinkling your brow? Send it to us at BrainsOn.org/contact, and we’ll help iron out the answer!