This social studies curriculum unit teaches students in grades ten through twelve about the history and current impact of the fast food industry. The unit uses a topic familiar to students to foster critical thinking about history, geography, government, and economics. Lessons cover the origins of food, highlighting the Colombian Exchange; the growth of the soft drink industry; and the impact of fast food on various areas of one's life, from nutrition to global politics. Detailed student handouts and activity instructions are provided along with an extensive teacher's guide. (Contains 26 references.) (RJC)