This real world-based activity allows students to explore the earth beneath their feet through hands-on investigation of the AP® topics of rock cycle, soil formation, and erosion. Students learn how rocks are weathered to create soil, analyze soil horizons, determine the slope of the land, identify soil composition, and calculate bulk density. Exercises relate each of these properties to human activities and create links to environmental impacts. Kit contains materials to lead 24 students through several field and lab activities.