Exploring Landscapes Shaped by Glacial Erosion

The video tutorial explores the fascinating world of landscapes shaped by glacial erosion. It delves into the processes of glacial abrasion and plucking, explaining how glaciers carve out unique landforms such as cirques, headwalls, and U-shaped valleys. The tutorial also covers the formation of hanging valleys, fjords, horns, and aretes, providing insights into the distinct features of glacial landscapes. Through vivid descriptions and examples, viewers gain a comprehensive understanding of how glaciers have sculpted the Earth's surface over time.

What are the two main processes by which glaciers erode the landscape?

• Sedimentation and deposition

• Weathering and erosion

• Abrasion and plucking

• Melting and freezing

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NGSS.HS-ESS2-5

What is the circular area at the top of a glacier called?

• Headwall

• Tarn

• Cirque

• Arête

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NGSS.HS-ESS2-5

What is the term for the steep wall at the back of a cirque?

• Fjord

• Headwall

• Arête

• Horn

How can you distinguish a glacial valley from a river valley?

• By its U-shaped cross-section

• By its V-shaped cross-section

• By its flat bottom

• By the presence of a large river

What is a misfit stream?

• A stream that flows in a desert

• A stream that flows in a valley carved by a glacier

• A stream that flows in a river valley

• A stream that flows in a flat plain

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NGSS.HS-ESS2-5

What are fjords?

• Long, narrow bays carved by glaciers and invaded by the ocean

• Steep-sided ridges between glacial valleys

• Sharp-edged mountains surrounded by cirques

• Circular lakes at the top of a glacier

What evidence suggests that glaciers were much larger during the last Ice Age?

• Presence of polished rock below a certain line

• Presence of large rivers

• Presence of high mountains

• Presence of deep valleys

What is a horn in glacial geography?

• A sharp-edged mountain surrounded by cirques

• A steep-sided ridge between glacial valleys

• A circular area at the top of a glacier

• A long, narrow bay carved by glaciers

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NGSS.HS-ESS2-5

What is an arête?

• A steep-sided ridge between glacial valleys

• A sharp-edged mountain surrounded by cirques

• A circular area at the top of a glacier

• A long, narrow bay carved by glaciers

Tags

NGSS.HS-ESS2-5

What is the name given to a series of lakes in glacial valleys that resemble a rosary?

• Tarn

• Cirque lake

• Fjord

• Paternoster lakes

Tags

NGSS.HS-ESS2-5