Glaciers Flashcard

Front

What do mountain landscapes help geologists understand?

Back

Mountain landscapes help geologists understand tectonic plate movement, geologic history, and rock types.

Tags

NGSS.HS-ESS1-5

NGSS.HS-ESS2-1

Front

What is the unsorted material deposited directly by ice called?

Back

The unsorted material deposited directly by ice is called till.

Front

True or False: Mountain landscapes often include hard metamorphic and igneous rocks.

Back

True

Tags

NGSS.MS-ESS2-1

Front

What are parallel scratch marks on bedrock called?

Back

Parallel scratch marks on bedrock are called striations.

Front

True or False: Glaciers are made of compacted snow over a short period of time.

Back

True.

Front

What is the process called when glaciers erode the landscape?

Back

The process is called glacial erosion.

Front

What is an esker?

Back

An esker is a long, winding ridge of stratified sand and gravel, formed by meltwater streams flowing beneath a glacier.

Front

Define 'outwash'.

Back

Outwash is sediment deposited by meltwater from a glacier, typically sorted by size.

Front

What is a glacier?

Back

A glacier is a large mass of ice that moves slowly over land, formed from compacted snow.

Front

What is the term for large boulders transported by glaciers?

Back

The term for large boulders transported by glaciers is erratics.