30 scenario-based multiple-choice questions in which students distinguish between Aphelion and Perihelion. Each question presents a realistic scenario requiring students to classify or apply the correct concept. For AP Environmental Science, earth science, and geology courses. Use as a bell ringer, exit ticket, unit review, sub plan, homework, or test prep activity for the astronomy, planetary motion, and earth science unit. No more printing or correcting, in an LMS it corrects itself! No mo