The magic school bus is a animated tv-series and books for children about science.
In this occasion, the field trip is inside Arnold´s mouth. The children, together with their teacher Mrs Frizzle, will go inside Arnold´s mouth and answer the question: What happens when we eat?
The videos lasts not more than half hour and it serves as a springboard to topics related to health and specially, the digestive system.
The video is available on YouTube and a a sequel of the 1994 animated series is now available on Netflix.