Book excerpt: Explore how your body works through interactive augmented reality experiences! Oozing stomach acid. Booming belches. Stinky farts. These revolting reactions happen during the digestion of food. Once you’ve chewed up and swallowed a meal, your body turns it into energy, water . . . and poop. Find out about all the nasty things that happen deep inside your belly—and learn why they sound, smell, and feel the way they do. Through close-up pictures, interactive augmented reality experiences, and lots of disgusting facts, you’ll learn all about the gross science behind your body’s functions.