7/8 Science: Section 4.3 Review (Abeka: Earth and Science)

Vast sheets of glacial ice that cover immense areas of relatively flat land are called _____.

• continental glaciers

• ice caps

• valley glaciers

• icebergs

A river of ice that flows quickly down from a mountainous region into a valley is a valley (or alpine) glacier. Which word in this sentence needs to change?

• river

• quickly

• valley

• This statement is true.

The period of widespread glaciation is commonly called what?

(a)  

What is an accumulation of till left by a retreating glacier?

• kettle

• kettle

• outwash

• moraine

What are the deep grooves and scratches that are produced when large, hard rocks are pushed along by the glacier?

• ice caps

• striae

• horns

• crevasses

Name the sharp ridge that divides two cirques. (Spelling counts!)

(a)  

A valley carved out by a glacier and filled with melted glacier seawater is a fjord.

• True

• False

A drumlin is a low hill formed when a (a)   overruns its old deposits of broken rock.

At least how many cirques need to cut into a mountain for a horn to form?

• 0

• 1

• 2

• 3

What are the deposits that are beneath the ice of a melting glacier called?

• kettle

• moraine

• outwash

• fjord