PPT-Weathering and Erosion formation of landforms

weathering and erosion The process of weathering and erosion are the main forces behind landscape types However they are not the only reason for a plain plateau or a mountain region to form . Chapter 3: Introduction. 8 main terms to learn. Weathering. Erosion. Denudation. Mechanical weathering. Chemical weathering. Transport. Deposition. Agents of weathering. Weathering. The breaking down of rocks that lie exposed to the weather.. Features of River Erosion. 1. Potholes. 2. River Valleys. 3. Gorges and Canyons. 4. Mesa and Butte. 5. Waterfalls. 1. Potholes. Potholes are formed due to stream or river erosion which initiates by simple . Chapter 7. Section 7.1 Weathering. Weathering is the process by which rocks on or near Earth’s surface break down and change. . Erosion is the removal and transport of weathered material from one location to another.. Earth’s Changing Surface . Earth is a constantly changing body affected by . natural forces. :. On the . Inside. :. Plate Tectonics . = moving of Earth’s Plates driven by . convection currents. Earthquakes & Volcanoes. I. Most deserts exhibit highly angular landscapes.. . mechanical weathering . dominates (freeze-thaw) . angular particles of weathered rock; bedrock outcrops. little soil or vegetation to soften . another.. 2 . kinds:. 1) . Rill erosion. is the erosion by running water in small channels. , on the side of a slope.. 2) . Gully erosion. is when a rill channel evolves to become deep and wide.. Weathering. is the break-up of rock due to exposure to the atmosphere.. Weathering. involves two processes that often work together to decompose or break down rocks.. Chemical and Mechanical. Weathering!. What Is An . Ecoregion. ?. Ecoregion. - . a major ecosystem with distinctive geography, characteristic plants and animals, ecosystems, and receiving uniform solar radiation and moisture . Sometimes called an ecological region or bioregion. What is Erosion?. Erosion is defined as removal of rocks and soil by wind, water, ice and gravity.. Wind, water, ice and gravity are also known as the agents of erosion.. Weathering vs. Erosion . Weathering involves two processes . Weathering. Notes. Weathering. - The surface processes that break down rock into small pieces called sediment. . Two Types of Weathering. MECHANICAL WEATHERING. – . . Physical. processes that break rock into fragments with the . The creation of sedimentary rocks. Weathering and Mass Movement. Objectives:. 1. Describe the processes by which erosion wears down and carries away rock. 2. Distinguish between chemical and mechanical weathering. Chapters 14, 15, 16, 17, and 18. SES3. Students will explore the actions of water, wind, ice, and gravity that create landforms and systems of landforms (landscapes). . a. . Describe how surface water and groundwater act as the major agents of physical and chemical weathering. . V-shaped valley and interlocking spurs. Rapids and waterfalls. Potholes. Landform of . deposition:. Braided channels . Upper course. Vertical erosion is the dominant process. River channel narrow and shallow, often lined with large angular boulders. The. . Erosion-Deposition. . Process. Constructive vs. Destructive. Constructive process build up features on Earth’s surface. Lave erupting from a volcano hardens and forms new land on the area where lava falls..