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Measuring Up Lesson 32 pps. 175-178 Forces that change Earth’s Surface Objective 4

Learn about the forces that shape Earth's surface, including landforms, erosion, and weathering. Understand the formation of minerals and rocks through examples like granite and shale. Explore the impact of continental plates and the TAKS practice.

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Measuring Up Lesson 32 pps. 175-178 Forces that change Earth’s Surface Objective 4

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  1. Measuring Up Lesson 32pps. 175-178Forces that change Earth’s SurfaceObjective 4 At the end of this lesson you will should understand Earth’s surface features and resources by learning about the forces that shaped and continue to shape them. TEKS 5.6A: Identify events and describe changes that occur on a regular basis. 5.11A: Identify and observe actions that require time for changes to be measurable. 5.12A: Interpret how landforms are the result of a combination of constructive and destructive forces such as deposition of sediment and weathering.

  2. Vocabulary p. 175 • Landforms: • One of many different-shaped features found on the continents, such as a mountain, valley, or plateau • Erosion: • The wearing away of rock or soil by wind, water, or ice • Weathering: • A process that breaks down rocks • Minerals: • Nonliving natural materials with a regular structure, including metals, metal ores, and some kinds of rock

  3. Guided Questions pps. 175-176 • What are continents? • Landmasses • What are three kinds of landforms? • Mountains, plateaus, and plains • What occurs during weathering? • Wearing away of mountains • What landforms are formed by erosion? • valleys and canyons • Name a few minerals. • Metal and metal ores

  4. Short Answer p. 176 • How do continental plates move? • They float on a layer of “liquid: or molten rock. • How can moving continental plates change Earth’s surface? • They move apart to form valleys or move together to form mountains.

  5. Short Answer p. 176 • How can erosion wear away and build up Earth’s surface? • Wear away: Wind and rain can move rocks and soil. Build up: Rocks and soil can be deposited in other areas to form plains. • How is the building up of Earth and the wearing down of Earth related to different kinds of rock? • When erosion moves bits of rock and deposit them somewhere else, they can turn into sedimentary rock.

  6. Apply the TEKS p. 177 • What type of rock is granite? Explain. • Granite is an igneous rock; it forms from slowly cooled magma. • Describe how shale is formed. • Shale is formed from layers of clay and silt deposited over time. • How is obsidian formed, and what type of rock is it? • Obsidian is formed as lava cools quickly after a volcanic eruption. Obsidian is an igneous rock.

  7. Apply the TEKS p. 177 • Limestone and marble are both used in sculpturing. Limestone becomes marble under heat and pressure. Classify each rock, and tell which would be harder to sculpt. • Limestone is a sedimentary rock, and marble is metamorphic. Ex: marble is harder to sculpt because it is metamorphic rock, which is harder due to the intense heat and pressure it underwent. • Explain how the minerals in a piece of granite become part of a sedimentary rock. • Ex: The granite could be weathered and broken into small pieces. Some of the pieces. Some of these pieces could be eroded an then compacted to form sedimentary rock.

  8. TAKS Practice p. 178 • Link to TAKS Practice

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