Design a compact parachute to keep a 50 g payload safe while maximizing drop time. Two pages include a science mini-paragraph, 2 review Qs, simple protocol, design box, data table, 2 reflections, and a student-friendly 20-pt rubric. Low prep—print & go. Full description Students build a small parachute (canopy area ≤ 400 cm²), standardize a 2 m drop, and measure time (s) and payload survival. After three trials and a mean, they make one small, data-driven tweak (canopy area, line