Glaciers

A glacier is __________

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

Ice sheets once covered the upper northeastern portion of the United States.

• True
• False

Glaciers form when _____.

• less snow falls than melts 
• more snow falls than melts 
• less rain falls than freezes 
• more rain falls than freezes 

When a glacier is experiencing more melting than snow accumulation it is said to be in a period of _____.

• glacial drift 
• glacial retreat 
• glacial advance 
• o  glacial outburst 

When a glacier melts quickly or water under a glacier is suddenly released, the result is known as _____.

• an eruption 
• a crevasse 
• an outburst flood 
• a terminal moraine 

All of the following were formed by glaciers EXCEPT _____.

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

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

What letter of the alphabet does a glacial valley most closely resemble?

• U
• V
• W
• X

The fact that water is freezing later in the year indicates that Earth is experiencing global cooling.

• True
• False

Icebergs form when a glacier flows into a body of water and cracks apart. This process is known as _____.

• drifting
• cracking
• calving
• crevassing