Part 1: It's Tom's birthday, and his dad has prepared a whole buffet for the occasion. The little boy eats and eats, while his tummy starts to grumble. What's all the fuss about?

Part 2: Science: A child-friendly explanation of the digestive system. 
Answers to the following questions: 
Why do you eat? 
Where does the food you eat go? 
How does digestion work? 
What is flatulence? 
Why do you fart? 
Why do your farts stink? 
Why is your poop brown? 
How long are your intestines?