PPT-Geologic Processes 2- Weathering

Erosion and Deposition How can wind and water change our landscapes Weathering the destructive processes by which materials at or near the Earths surface are changed in color texture composition firmness or 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.. 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. Physical Weathering. Weathering. is the breakdown of rock or soil. . Physical . weathering occurs when natural forces, such as wind, running water, and moving ice, physically break up rock and soil into smaller particles. . 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.. How long ago were the dinosaurs here? How do we even describe geologic time anyway?. EONS. which are divided into . ERAS. ,. which are divided into. . PERIODS. ,. which are divided into. . EPOCHS. 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. Weathering: . The . process that breaks down rock and other substances at Earth’s surface.. Factors that contribute to weathering include:. Heat, cold, water. , ice, oxygen, and carbon dioxide. Erosion: . 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 . 8. th. Grade Science. Geologic Time. Geologic time. . - Earth’s history is divided into units of time that make up the . Geologic . T. ime . S. cale. .. Time units on the scale are based on the appearance (. 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. -. ]. Weathering and Erosion. Table of Contents. Section 1 . Weathering Processes. Section 2 . Rates of Weathering. Section 3 . Soil. Section 4 . Erosion. Chapter. 14. Section 1 . Weathering Processes. 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. 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. .