Weathering and Erosion: What Is Weathering?

Upon viewing the Weathering and Erosion video series, students will be able to do the following: Describe weathering as a process that involves the breaking down of rocks and other materials on Earth's surface. Differentiate between the processes of mechanical weathering and chemical weathering. Define mechanical weathering as the process by which rocks or other materials are physically changed, but not chemically changed. List examples of ways mechanical weathering occurs, including abrasion, temperature fluctuations, landslides, freezing and thawing, and the action of plant roots. Explain that chemical weathering is the process by which the actual Composition, or chemical makeup, of a rock is changed in to a different substance. Provide examples of chemical weathering, including the effect of water, air, acid rain, oxidation, and plants on rocks. Define erosion as the process by which earth materials are moved from one place to another. List and describe some agents of erosion, such as the following: moving water, waves, wind, and glaciers. Provide and describe some common examples of agents of erosion near your home.