In this hands-on, collaborative STEM lesson, students will design and build a chain reaction using Keva Planks, marbles, and bouncy balls to explore Newton’s Laws of Motion, energy transfer, and cause-and-effect relationships. Students will engage in inquiry-based learning, observing teacher-led demonstrations and discussing real-life examples of chain reactions. They will then brainstorm, plan, and build their own models, applying their knowledge of forces, motion, and engineering design. Each