Engage students in a guided concept analysis of soil systems as they explore soil formation, horizons, fertility, erosion, and conservation. Through structured, inquiry-based questions, students investigate the O, A, E, B, C, and R horizons, weathering processes, and the biological and human factors that influence soil quality and sustainability. Designed for AP® Environmental Science Unit 4, this activity emphasizes critical thinking, application, and FRQ-style reasoning while remaining e