Everybody eats, and everybody poops. Pretty ordinary stuff, right? But what happens in between is far from ordinary! That’s where your digestive system—also known as your gut—works its magic. is an excellent, science-based resource for classroom learning and home-schooling for kids age 9 to 13, with information about: Dr. Jennifer Gardy also takes stomach-turning detours to investigate the science behind burps, barfs, and farts, proving that learning about the wonderful world of your gut—takes guts!