Glacial Erosion

Front

What is a u-shaped valley and how does it form?

Back

A u-shaped valley is a valley with a characteristic U-shape, formed by the erosion of a glacier. It takes millions of years to form as the glacier moves through a pre-existing V-shaped valley, widening and deepening it.

Tags

NGSS.MS-ESS2-2

Front

What is a glacier?

Back

A glacier is a large body of ice and snow that slowly moves towards the ocean due to gravity.

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NGSS.MS-ESS2-4

Front

What glacial feature is formed by the end of a glacier's movement through a valley?

Back

A u-shaped valley is formed by the end of a glacier's movement through a valley.

Front

How does a glacier modify a stream valley?

Back

A glacier modifies a stream valley by eroding the valley walls and floor, transforming it from a V-shape to a U-shape.

Tags

NGSS.MS-ESS2-2

Front

What process occurs when a glacier reaches the ocean?

Back

When a glacier reaches the ocean, the process of deposition of sediment occurs at the point where the ice lands on the water.

Tags

NGSS.MS-ESS2-2

Front

What are the stages of glacial erosion?

Back

The stages of glacial erosion include the accumulation of snow, compaction into ice, movement of the glacier, and the erosion of the landscape.

Tags

NGSS.MS-ESS2-2

Front

What is the role of gravity in glacier movement?

Back

Gravity causes glaciers to move downhill, leading to the erosion of the landscape as they flow.

Front

What is the difference between glacial erosion and fluvial erosion?

Back

Glacial erosion is the process of erosion caused by the movement of glaciers, while fluvial erosion is caused by the movement of water in rivers and streams.

Tags

NGSS.MS-ESS2-2

Front

What are the main types of glacial landforms?

Back

The main types of glacial landforms include u-shaped valleys, fjords, moraines, and drumlins.

Front

What is a moraine?

Back

A moraine is an accumulation of debris (rocks and sediment) that has been transported and deposited by a glacier.