This comprehensive lesson includes slides to teach the difference between theory, law, fact, and hypothesis. Then, students focus on a key moment inthe development of the Germ Theory by becoming the detectives, creating their own map of 1854 London to determine the source of the cholera epidemic! The lesson includes extension activites (research, skit, comic strip creation). You can find the slides and complete activity packet here: https://sciencesaves.org/2025/09/17/detective-activity-the-1854