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 Friction and impact. This means that 1 in every 733 babies is born with this condition Although parents of any age may have a child with Down syndrome 80 are born to women under the age of 35 NICHCY Disability Fact Sheet 4 June 2010 Definition Definition Definition Defi Safety Break Safety Break Safety Break Safety Break Safety Break Safety Break Lap Swim (2) Open Swim (2) Lap Swim (2) 10:00am-4:25pm Open Swim (2) 12:10pm-2:30pm Safety Break Safety Break Safety Bre red up down down up down down up yellow grey-blue up down down up grey-blue russet peacock peacock russet russet blue red up down down up green green white (blue) Kitchen Servants' Dormitory Scullery 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. 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. . 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. 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. . 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. 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. 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. 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. Friction and impact. 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. .