This is a three-unit guide that provides science content and inquiry-based activities about volcanoes of the Cascade Range, with emphasis placed on Mount Rainier. More than 30 activities, a field guide to geological sites of interest at Mount Rainier National Park, glossary, list of Internet resources, and supplementary information are included. Lessons are interdisciplinary and focus on history of volcanic eruptions, volcanic processes, volcanic hazards, plate tectonics and emergency planning. There are many hands on activities and a complete list of references and resources. Educational levels: Middle school, High school