What lives in the cold at the very top and bottom of our planet? Make reading your superpower with DK's beautiful, leveled nonfiction. Use your reading superpowers to learn all about life in Earth's frozen Arctic and Antarctic - a high-quality, fun, nonfiction reader - carefully leveled to help children progress. Frozen Worlds is a beautifully designed reader all about the Arctic in the north, home to the polar bear and the southern Antarctic, with its penguins and seals. The engaging text has been carefully leveled using Lexile so that children are set up to succeed. A motivating introduction to using essential nonfiction reading skills. Children will love to find out about the Earth's frozen extremes, the Arctic and Antarctic.