In this unit, students investigate five essential questions about severe weather: "What is severe weather? How does weather impact people's lives? How can technology be used to collect data about weather conditions? What can weather data tell us about the frequency of severe weather events? How can people modify their homes to reduce the impact of severe weather?" The printable “Engineering Portfolio” provides a place for students to document their learning as they gather information through videos and text, and design solutions to simulated weather events. Although the unit sometimes focuses on weather in Maryland, the background information and design challenge are relevant to a broader audience.