PPT-Weathering

Lets break it down Physical Weathering The process of rocks being broken down into smaller pieces by external conditions Types of Physical weathering Frost heaving and Frost wedging Plant roots. 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.. Chapter 5.1. What is Weathering?. 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. Chapter 7 –Weathering and Erosion. Objectives:. Distinguish between weathering and erosion. Identify physical variables that cause mechanical weathering. Identify chemical variables that cause chemical weathering. Weathering. The breakdown do the materials of Earth’s crust into smaller pieces.. Physical Weathering. Process by which rocks are broken down into smaller pieces by external conditions.. Types of Physical weathering. Weathering . Students will be able to describe and give examples of chemical and physical weathering.. . Weathering. The breakdown of materials on Earth’s crust into smaller pieces.. Two Types of Weathering. 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. 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. . Weathering. Weathering is the process that breaks down rock and other substances at the Earth’s surface. . Heat, cold, water, and ice all contribute to weathering.. Repeated freezing and thawing for example can crack rock apart into smaller pieces. . Week 5, Friday; September 26, 2014. Kaolinite. http://. mineral.esci.umn.edu. /node/1182. Illite. http://. sunbio.my. /?. page_id. =121. Vermiculite. http://. www.vermiculite.org. /. what_is_vermiculite.php. 4 Types. Ice & Water. Abrasion. Plants & Animals. Exfoliation. 1. Ice & Water. . explanation of how ice and water causes weathering. Add picture. Ice Wedging. Also called…. . “Ice Wedging”. Weathering. The breaking down of rock into smaller pieces that remain next to each other. . Weathering forms sediments.. There are two types of weathering.. Mechanical (Physical) . Chemical. Mechanical Weathering. 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.. 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. .