Presents information on the digestive system and processes, including the role of saliva in eating, the way the body extracts energy from food while digesting it, the digestive organs, and the body's ways of eliminating waste. The information is conveyed in graphic novel format by a group of characters, including Gordy the rhino, Gassie the gas bubble, Sam the sandwich, Soggy the stuffed bear, Rick the brick, and Cann-Dee the robot. Includes a glossary, a list of additional resources, and critical thinking questions using the Common Core.