PPT-Physical and Chemical Weathering

Eric Angat Teacher What are the two types of weathering What are the different types of physical weathering How is root wedging similar with frost wedging Why are rivers rocks rounded and smooth Think. 5. th. Year Geography. Weathering. Understand the main causes of Weathering.. Identify the different types of weathering.. Recognise a landform created as a result of one type of weathering.. Learning Outcome. Wearing Down: Weathering,. Rusting. & rotting. The breaking down of rock is called weathering.. What is Weathering?. There are two types of weathering.. Chemical. . weathering. Most weathering is the result of both kinds.. 7:. WEATHERING. The . Hoodoos. near to . Drumheller. , . Alberta. What weathering processes likely contributed to the development of these remarkable rock formations?. Weathering. Weathering is the result of a series of physical, biological, and chemical processes. . Miss Johnstone’s Expectations. Arriving and leaving the classroom. Presentation. Underline your titles. Always put the date. Draw in pencil. Draw a line under previous lessons work and carry on. Learning Objectives. WEATHERING. Nature of weathering and erosion. Weathering. chemical and/or physical breakdown of a rock or mineral material. weathering involves specific processes acting on materials at or near the Earth’s surface. Physical Geology. Lecture 5: Weathering and Soil Formation. Weathering. Chemical Weathering. Hydration: chemical reaction that consumes H. 2. O [ 2KAlSi. 3. O. 8. + 2H. 2. CO. 3. + H. 2. O = Al. 2. Weathering. Chemical Weathering. Hydration: chemical reaction that consumes H. 2. O [ 2KAlSi. 3. O. 8. 2H. 2. CO. 3. H. 2. O = Al. 2. Si. 2. O. 5. (OH). 4. 4SiO. 2. 2K. . 2HCO. 3. -. ]. Predict how weathering might reshape surface features (topography). Weathering and Erosion. The top part of the lithosphere—the earth’s surface—changes as rocks are broken down to smaller pieces and carried away.. Weathering can be defined as any. chemical or mechanical process by which rocks exposed to weather undergo changes in character or are broken down into smaller pieces. .. Mechanical Weathering. Mechanical Weathering. After Unit 9 you should be able to:. Accurately identify common types of weathering. Understand what types of weathering are associated with certain climatic conditions. Be able to identify resistances to weathering in bedrock diagrams. Weathering. : the breaking up of rock into smaller pieces . Erosion. : the movement of sediment from place to place by wind, water, ice, or gravity. Deposition. : the re-depositing of sediments in a new location following erosion . What is Weathering?. The scenes of the world are continuously mutating. Sun, rain, frost, and wind are breaking down even the most solid of the rocks into smaller bits before they are taken away. This process is termed as weathering. . Lesson 3 . Please Do Now!!!!! . -Looking at this picture what do we think caused this boulder to break apart???. -Please write down your thoughts. . -If you get the correct answer Miss. Swisher will give you a dollar. . What processes cause this to happen?. What can you say about the speed of these processes?. Inference Point. Rockies. 80 milllion years old. Appalachians. 480 million years old. Soil: the foundation for agriculture.