I swallowed a monster

It is Tom's birthday, and his dad prepared a whole buffet for the occasion. The little boy eats so much food that his stomach begins to grumble. Why is there so much bubbling?

This album is part of the Mamie raconte... Collection.
Science: Digestion

The first part is funny while the second one explain digestion from the mouth to the toilet.
It's a good book for small ones and for bigger ones too. It is about a young boy who eats too much too fast. It happens what it is supposed to happen.