This book discusses the problems of melting ice and global warming, describing melting glaciers, effects in Antarctica, effects in the Arctic, the threat to polar bears, and the work of scientists with ice cores.
Illustrations help offer an inside look at how the human body works, describing how the brain works to control the other body systems, how nails and hair grow, why bones break and how they mend, and how the heart and lungs transport oxygen to the rest of the body.
Illustrations and simple text teach young readers about different kinds of birds, how they fly, what they eat, how they defend themselves, and what they look like.
