The concept of energy is central to all the science disciplines, seamlessly connecting science, technology, and mathematics. For high school and upper middle school teachers, this compendium comprises inquiry-based activities, lesson plans, and case studies designed to help teach increased awareness of energy, environmental concepts, and the related issues. Drawn from NSTA’s award-winning, peer-reviewed journals, the book is divided into three overarching segments for learning and teaching: Student Investigations includes several activities that tackle such topics as “Energy, Heat, and Temperature,” “Vehicles and Fuels,” and “Living Connections.” Projects and Case Studies includes examples of extensive, question-driven student projects, and the last section, Issues in Depth, provides background content knowledge for deeper understanding of the critical energy issues facing the world today. These interesting and meaningful investigations demonstrate the interdisciplinary nature of energy, preparing students for the complex reality of our global energy economy.