Warm-Up Glaciers

The photograph shows scratched and grooved

bedrock with boulders on its surface. The scratches and grooves were most likely created when

• alternating thawing and freezing of water cracked the bedrock

• flooding from a nearby lake covered the bedrock

• a glacier dragged rocks over the bedrock

• rocks from a landslide slid along the bedrock

Tags

NGSS.MS-ESS2-2

How are glaciers formed ?

• Rain turned into snow

• Layers of snow are compressed.

• Hot air convects and form snows.

• Long winter

A glacier is a

• series of frozen lakes that line up parallel to one another 
• series of frozen seas that rest in the interior of continents 
• large body of ice that does not move across the earth's surface 

• large body of ice and snow that shows evidence of movement 

Which of the following were formed by glaciers?

(check all that apply)

• Long Island
• Niagra Falls
• Great Lakes
• Grand Canyon

Tags

NGSS.MS-ESS2-2

What type of glacier forms over large, flat, land masses and is shaped like a dome?

• an iceburg
• a crevasse
• a continental glacier
• an alpine glacier

The two types of glaciers are

(check the two)

• Valley
• Mountain
• Plain
• Continental

Tags

NGSS.MS-ESS2-4

_____ is the unsorted material that is deposited directly by ice.

• Outwash
• Till
• Erratic
• Esker

What type of glacier forms in a mountainous area?

• Alpine

• continental

• till

• moraine

What are sharp pyramid shaped peaks formed by alpine glaciers called?

• U-shaped valleys

• cirques

• aretes

• horns

What are jagged ridges that form on mountains called?

• U shaped valleys

• cirques

• aretes

• horns

Tags

NGSS.MS-ESS2-2