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Ahmad Ali media productions presents… PART ONE.

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1 Ahmad Ali media productions presents… PART ONE

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3 Lesson goals You will be able to learn  what a landform is  how landforms are made  how natural processes of landform formation affect people and shape the Earth

4 Success Criteria  You are able to thoroughly explain what a landform is  You able to briefly explain how landforms are made  You are able to explain how the natural processes of landform formation can shape the Earth

5 Important notes Questions Discuss with a friendActivity

6 These distinct land areas are called “Landforms.”  A landform is a natural feature of the Earth's surface. Landforms together make up a given terrain. They are the distinguishing features separating the regions of the earth.  The most common landforms include hills, mountains, plateaus, canyons, valleys, bays, peninsulas, seas, mid-ocean ridges, volcanoes, great ocean basins, etc.

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8  Earthquakes, volcanic eruptions, and water/wind erosion are all examples of natural forces that either build up the land or wear it down. 1. Volcanic eruptions- volcanoes spew out hot magma. 2. If the volcanoes is on land, the magma cools on top of the land and forms another layer of land. 3. If the volcano is underwater, The magma flows to touch the ocean where it cools and forms into a large solid piece of land. This land is called an island.

9 Earthquakes- The Earth is constantly experiencing earthquakes, but most of them are too insignificant to feel. Big Earthquakes can either wear down or build up the land through either faulting or folding.  Folding: when two of the Earth's plates collide, the over time pressure can cause rock to fold. When that happens, the rock gets pushed up, and mountains are formed. This type of earthquake is called folding.  Faulting: when two of the Earth’s plates collide, the Earth's crust can crack, or fracture. A fault is formed. Along the crack, or fault line, the rock is being pushed together. Sooner or later, the pressure has to be released. When that happens, the result is an earthquake.

10 Erosion (water/wind) Erosion is when forces like wind or water remove soil and rock from one location on the Earth's crust, then transport it to another location where it is deposited. Eroded sediment may be transported just a few millimetres, or for thousands of kilometres. Erosion can either wear down the land or create new landforms.

11  Destructive erosion: As water and wind pass across land, they take away grains of soil and wear down rock. Years of this process reduces the size of hills and mountains, and it cuts through ground to create valleys, canyons and ditches.  Creative erosion: Landforms that are created by erosion are called fluvial erosion landforms. As water passes across land, it carries with it sediment and other forms of natural debris. Over time, the accumulation of this sediment and debris create deposits, which eventually become landforms. Examples of fluvial erosion landforms include sandbars, flood plains and levees. Destructive Erosion Creative Erosion

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