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.

Demonstrate Formation of Syncline, Anticline, and Faults

ENGAGE

Landform Models Activity

Explore

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.govGreat Plains www.worldofstock.comVolcano www.wahinesurfing.comFault block mountain geography.sierra.cc.ca.usGlaciation www.ufrsd.netAlluvian fans www.geog.le.ac.ukCaldera www.alanpalmer.org.ukMeandering stream muller.lbl.govDunes www.tripalbum.netSinkhole www.jopeyer.comCave www.utexas.eduSea arch http://gpc.edu/~pgore/Earth&Space/landforms.htmlHeadland mick-armitage.staff.shef.ac.ukSea cliff www.picturesofengland.comBeach www.aloha.com