What causes us to get the hiccups? What powers the over 23,000 breaths that we take daily? What's so uncommonly hard to vanquish about the common cold? Your 8- to 12-year-olds will breeze through this detailed and fascinating exploration of the human respiratory system---'inhaling' foundational information about anatomical structures, function, and God's wonderful design! 80 pages, hardcover from Master Books.