PPT-Weathering

Weathering Students will be able to describe and give examples of chemical and physical weathering Weathering The breakdown of materials on Earths crust into smaller pieces Two Types of Weathering. 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. 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. Rose . AnnAgo. IV-6 . BEEd. WHITTLING . WIND . Bryce Canyon in Utah is a weathering wonder. Weathering and erosion have whittled away the rocks there for millions of years.. Today . huge hoodoos rise from the canyon floor. Hoodoos are rock pillars with shapes on their tops. They tower nearly 610 meters (2,000 feet) above the ground.. 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. 10.4. Erosion. Water, in either gas, liquid, or solid form can change the surface of the earth, it can even carve . rock. !. Erosion is the . transportation. of broken down rock fragments (sediment) by water, glaciers, gravity, and wind. It can happen slowly or . 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. . Ms. Martel. Weathering. Weathering is the breakup of rock due to exposure to processes that occur at Earth’s surface.. Geologists group weathering processes under two headings, mechanical and chemical weathering. . 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”. Scenario #1. Flood water pounds against a canyon wall and wears it down.. Weathering. Scenario #2. Rain washing soil away from a hillside. Erosion. Scenario #3. Layers of sediment forming at the bottom of the ocean. 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!. 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. -. ]. 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 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. .