I have a school project and i have no idea what to do, the class is IB BIO II, I need help please thank you?

The assignment is to choose any food (i choose apple but whatever) and i have to give a detailed journey as it goes through a digestive system of a human and it has to like a childrens book (as in make it simple enough for a kid to understtand it with pics and all that). I have to have things like where it all starts from the oral cavity to the anus and everything in between from the enzymes and processes and organs. so if you guys could please help that would be cool?