🎡 Ultimate Playground Science Expo

Teams present their Interactive Playground Model and Engineering Report to visiting classes and invited guests. Each group delivers a 5-minute explanation covering: research question, investigation design, key data patterns, conclusions, magnetic or force-based design problem, limitations, and future questions. Audience members test elements (marble run, swing, magnetic feature) and ask questions; students must defend their conclusions using evidence from graphs and data tables. Teacher uses the investigation rubric to score performance.