Weathering, Erosion, and Deposition Sorting is a hands-on activity designed to help your students understand three important processes that change the earth’s surface over time. After a short introductory lesson, students will work with a partner or team to sort and classify examples of weathering, erosion, and deposition. This product includes a teacher’s guide with a step-by-step lesson plan, activity directions, illustrated sorting cards, and an answer key. Printable and Google Slides version