This set of 31 Weathering and Erosion slides depict landform changes that occur due to the natural processes of weathering and erosion. Captions explain/define the different causes of weathering and erosion (ice, wind, water, and vegetation). Before and after photographs of United States locations (such as Mt. St. Helens) provide contrast between processes that may occur slowly or very quickly. These slides also illustrate the beauty and uniqueness of landforms that weathering and erosion may produce. The concept of deposition is introduced using labeled diagrams that illustrate movement of weathered materials.