It is not enough for students to acquire knowledge about how food is produced and processed; they must also come to understand the biological and environmental contexts in which food production, processing, and transportation take place. Through diagramming, students begin to understand that our food system has a series of interacting parts and that each part depends on the other parts. It also helps them think about the environmental impacts of a system. The food-system diagramming activity described here was part of students’ experiences in the Farm to Table and Beyond module of the Linking Food and the Environment (LIFE) Curriculum Series.