A middle school-level science module in the Event-Based Science program supported by the National Science Foundation. The workbook I will be published by Addison-Wesley in early 2000. It is a role-based curriculum package that lets students operate as engineers, scientists and technicians to understand the cause of a simulated electrical power blackout patterned after the March 1989 Quebec blackout which affected 6 million people. Students read news stories about the impacts of blackouts, their scientific causes, and conduct hands-on experiments in electricity and magnetism.