Radium
marie curie
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Carla Killough McClafferty
Carla Killough McClafferty (born July 11, 1958), is an American author of non-fiction for children, writing mostly about science and history. The International Reading Association awarded the 2007 Children's Book Award for Intermediate Nonfiction to her book Something Out of Nothing: Marie Curie and Radium. The National Council of Teachers of English gave a 2008 Orbis Pictus Recommended book designation to In Defiance of Hitler: The Secret Mission of Varian Fry.