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Glacial environment

IB DP Geography
       
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Base Knowledge and Understanding

Base knowledge and understanding

 
Video Clip
Data Visualization
   
Definition advance
retreat
erosion
deposition
cirque
arête
pyramidal peak
moraine
News Article
Words to be defined
 
Base Level

Context

 

The aim of this lesson:

  • To be able to explain the advance and retreat of glaciers.
  • To be able to explain the main features resulting from the processes of erosion and deposition by glaciers [glacial trough, a cirque, hanging valley, an arête, a pyramidal peak, an erratic, a drumlin, various types of moraine].
  • To be able to recognise the main features resulting from the processes of erosion and deposition by glaciers on a topographic map.
 
In2White
 
Zones of a glacier
 
 

You should be able to do the following:

  • construct a systems diagram for a glacier with inputs, processes and outputs

Column headings: inputs | processes and transfers | outputs

meltwater | snowfall | calving (when glacier flows into a body of water) | avalanches from the valley sides | evaporation | solar energy | landforms | erosion | rock debris | transport | ablation | ice movement (3-30 m/yr) | deposition

 

Option 1

Take notes by hand
Answer the questions by hand - no note-taking frame

Option 2

Google Documents note-taking frame
Answer the questions using this Google Documents note-taking frame
 
Geography Activities

Synthesis

 
Geography Activities
Geography Activities

Explain the advance of glaciers

 
Geography Activities
Geography Activities

Explain the retreat of glaciers

 

You should be able to do the following:

  • explain why a glacier would advance [glacial regime]
  • explain why a glacier would retreat [glacial regime]
  • define the zone of accumulation
  • define the zone of ablation
 
Page 172-173
Page 83
Pages 105-106
 
Geography Activities
Geography Activities

Explain the main features resulting from the processes of erosion and deposition by glaciers

 
Geography Activities

Erosional landforms - glacial trough, cirque, hanging valley, arête and pyramidal peak

 
Extreme Environments: The Aletsch Glacier, the largest in the Alps, Switzerland
 
Looking down the Vallorcine Valley towards Mont Blanc
Extreme Environments: A pyramidal peak or glacial horn - The Matterhorn, Switzerland
Extreme Environments - Arêtes, Glaciers and Cirques - Plateau du Trient and Glacier du Trient, France
Glacial Landscapes - The Lauterbrunnen Valley seen from Männlichen, Switzerland
 
Can you explain how glacial erosion and/or deposition forms each of these:
Landform
a glacial trough
Landform
a cirque
Landform
a hanging valley
Landform
an arête
Landform
a pyramidal peak
 
Hyperlink
  Illustrated Glossary of Alpine Glacial Landforms
 
Geography Activities

Depositional landforms - erratic, drumlin and various types of moraine

Glacial Erractic
Extreme Environments: Drumlins from Glacier des Ecoulaies, below Rochers du Bouc [3314 m], Valais, Switzerland
Extreme Environments - Lateral and medial moraines on the Aletsch Glacier, Switzerland
 
Can you explain how glacial erosion and/or deposition forms each of these:
Landform
a drumlin
Landform
an erratic
Landform
a terminal moraine
Landform
a lateral moraine
Landform
a medial moraine
 
Hyperlink
  Illustrated Glossary of Alpine Glacial Landforms
 
Geography Activities
Geography Activities

Topographic Map Skills

Could you identify the following on a map?
Camera
a glacial trough
Camera
a cirque
Camera
a hanging valley
Camera
an arête
Camera
a pyramidal peak
Camera
a drumlin
Camera
a terminal moraine
 

Pages 30-31

Geography Review

Review

 

Exam style question:

Explain the processes involved in the advance and retreat of glaciers. [6 marks]

Explain the main features of two named landforms formed by processes of glacial erosion. [3+3 marks]

Explain the main features of two named landforms formed by processes of glacial deposition. [3+3 marks]

 
Glacial Environment Questions
 

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