Evaluate students' ability to analyze how aerobic (cardio), muscle‑strengthening, and flexibility activities affect a child’s body—including effects on the heart and lungs, muscles and bones, joints and posture—and to explain why each is important for growth, daily function, injury prevention, and overall health; items should ask students to compare age‑appropriate examples, recommend suitable frequency/intensity for grades 3–5, and justify balanced activity choices through short analyses.