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1992. Douglas Mathers. What are ears for? How are sounds made? What happens in the middle ear? How does the inner ear help you keep your balance? What can go wrong with your ears? In this book, you will find the answers to these and many more fascinating questions.
Clear illustrations and dramatic close-up photographs of the body at work provide a thourough explanation of how the human body works. Full color, 32 pages, soft cover. Ages 9-11.