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Origins of Landforms

Origins of Landforms. Overview of Materials for Landform Activities Landform Activity Demos that Accompany this PPT. Origins of Landforms. TEKS 8.14 (A). predict land features resulting from gradual changes such as mountain building, beach erosion, land subsidence, and continental drift;.

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Origins of Landforms

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  1. Origins of Landforms Overview of Materials for Landform Activities Landform Activity Demos that Accompany this PPT

  2. Origins of Landforms

  3. TEKS 8.14 (A) predict land features resulting from gradual changes such as mountain building, beach erosion, land subsidence, and continental drift;

  4. Learning Objectives • Identify landforms • Explain the role of geological structures, igneous activity, water, wind, and glaciers in the origin of landforms • Explain how weathering, erosion, subsidence, and uplifting create landforms

  5. Major Types of Landforms • Mountains (volcano, fault block mountains) • Plains (coastal and interior plains) • Plateau (broad flat areas of land)

  6. Volcano and Fault Block Mountains

  7. Coastal and Interior Plains

  8. Plateau Plateau in Albuquerque NM

  9. Landforms Origins • Geological structures • Glaciers • Igneous activity • Running water • Ground water • Wind • Waves and currents

  10. Geological Structures This is how mountains, plains, plateaus, canyons, and mesas are formed

  11. Glaciers This is how cirques, horns, tarns, finger lakes, U-shaped valleys, and hanging valleys are formed.

  12. Igneous Activity This is how cinder, shield, and composite cone volcanoes, and calderas, are formed. Arenal Volcano in Costa Rica

  13. Running Water This is how alluvial fans, oxbow lakes, and meandering streams, are formed.

  14. Ground Water This is how sinkholes and caves are formed. Sinkhole at Chichen Itza, Mexico

  15. Wind This is how dunes are formed.

  16. Waves and Currents This is how headlands, sea arches, sea cliffs and beaches.

  17. Demonstrate Formation of Syncline, Anticline, and Faults ENGAGE

  18. Landform Models Activity Explore

  19. Explain • What are the 3 major types of landforms? • Describe the origin of at least 5 landforms. • Predict the effect of weathering, erosion, and subsidence on landforms.

  20. Elaborate • Landform Coloring Activity. • Create Edible landforms.

  21. Evaluate For each of the following, indicate how the landform was created. • Sea cliff • Fault block mountain • Sea arch • Cirque

  22. Evaluate For each of the following, indicate how the landform was created. • caldera • Oxbow lake • sinkhole • plateau

  23. Evaluate For each of the following, indicate how the landform was created. • Alluvial Fans • volcano • caves • dunes

  24. Evaluate For each of the following, indicate how the landform was created. • headlands • beach • Plains • Horn

  25. Credits • Coastal plains www3.csc.noaa.gov • Great Plains www.worldofstock.com • Volcano www.wahinesurfing.com • Fault block mountain geography.sierra.cc.ca.us • Glaciation www.ufrsd.net • Alluvian fans www.geog.le.ac.uk • Caldera www.alanpalmer.org.uk • Meandering stream muller.lbl.gov • Dunes www.tripalbum.net • Sinkhole www.jopeyer.com • Cave www.utexas.edu • Sea arch http://gpc.edu/~pgore/Earth&Space/landforms.html • Headland mick-armitage.staff.shef.ac.uk • Sea cliff www.picturesofengland.com • Beach www.aloha.com

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