Ready-to-use Energy Bell Ringers designed to move students beyond basic understanding into real-world systems thinking and decision-making — fully structured as a 30-day warm-up system for middle and high school classrooms with no prep required. This Volume 2 pack builds directly on foundational concepts and challenges students to think about how energy systems actually work, how decisions are made, and how real-world trade-offs impact outcomes. Students engage with topics such as: • energy