Transcript 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;
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
Major Types of Landforms Mountains (volcano, fault block mountains) Plains (coastal and interior plains) Plateau (broad flat areas of land)
Volcano and Fault Block Mountains
Coastal and Interior Plains
Plateau Plateau in Albuquerque NM
Landforms Origins Geological structures Glaciers Igneous activity Running water Ground water Wind Waves and currents
Geological Structures This is how mountains, plains, plateaus, canyons, and mesas are formed
Glaciers This is how cirques, horns, tarns, finger lakes, U shaped valleys, and hanging valleys are formed.
Igneous Activity This is how cinder, shield, and
composite
cone volcanoes, and calderas, are formed.
Arenal Volcano in Costa Rica
Running Water This is how alluvial fans, oxbow lakes, and meandering streams, are formed.
Ground Water This is how sinkholes and caves are formed.
Sinkhole at Chichen Itza, Mexico
Wind This is how dunes are formed.
Waves and Currents This is how headlands, sea arches, sea cliffs and beaches.
ENGAGE
Demonstrate Formation of Syncline, Anticline, and Faults
Explore
Landform Models Activity
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.
Elaborate
Landform Coloring Activity.
Create Edible landforms.
Evaluate
For each of the following, indicate how the landform was created.
1.
Sea cliff 2.
Fault block mountain 3.
Sea arch 4.
Cirque
Evaluate
For each of the following, indicate how the landform was created.
5.
caldera 6.
Oxbow lake 7.
sinkhole 8.
plateau
Evaluate
For each of the following, indicate how the landform was created.
9.
Alluvial Fans 10.
volcano 11.
caves 12.
dunes
Evaluate
For each of the following, indicate how the landform was created.
13.
headlands 14.
beach 15.
Plains 16.
Horn
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