PPT-TPO Weathering By: Zebonie

Sukle OVERVIEW OF PRESENTATION Introduction on Product Standards Single Ply Product Standards Overview Focus on Accelerated Aging Predicting What is Next Case Study Taking TPO to 275 o F. 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. 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.. The . surface. features of the Earth change as a result of observable physical and chemical processes . Weathering and Erosion. This is a monument . called Cleopatra’s . Needle. It was carved in Egypt around 1450B.C. The sides are carved with hieroglyphs, the writing of ancient Egypt. It stood in the dry, hot Egyptian desert for over 3000 years. During that time, the hieroglyphs remained distinct.. 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. 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. . 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. Erosion. The carrying weathered rock from one location to another . Mechanical Weathering. Rock is physically broken down. Smaller pieces have same composition. Chemical Weathering. Rock is chemically broken down. 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. 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. 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..