The workings of the digestive system are explained in Bill Nye the Science Guy: Digestion, as Nye once again turns the attention of young science students to a topic they should understand. He manages to keep their focus with a fast-paced show that mixes comedy and music with science. The average Science Guy audience member is ten years old, but Nye's style appeals to students in the upper grades as well, and he counts many adults among his fans. In this show, he compares the body's digestive works to machines, like a steam engine and a car, that need fuel to run.
Disney Educational - Bill Nye The Science Guy - Digestion