One of the most effective ways to understand abstract biological processes is to create a familiar and concrete metaphor. Comparing the human digestive system to a "food processing plant" is a classic and powerful cognitive model. In this model, the mouth is the raw material crusher, the esophagus is the conveyor belt, the stomach is the fermentation tank, the small intestine is the core refining and absorption workshop, and the large intestine is the dehydration and packaging line. By operating the mechanical devices simulating each "section," visitors can immerse themselves in the role of "food" or "operator," intuitively understanding the "machine function" of each organ, the "assembly line" connections between them, and how the final products (nutrients and waste) are "produced." This metaphor-based interactive learning greatly lowers the barrier to understanding and builds strong memory associations. The "Journey of Food" exhibit perfectly practices this metaphorical teaching met
