Assess students' ability to analyze how different types and intensities of physical activity (e.g., walking, jumping jacks, sprinting) affect a 3rd–5th grader's heart rate, self-reported energy level, and recovery time by interpreting heart-rate and recovery-time data or graphs, comparing low/medium/high intensity effects, explaining age-appropriate physiological reasons, evaluating experimental design and safety controls, and making evidence-based activity recommendations.