Glaciers

Question 1

Glacial environment?

Answer 1

Landscape covered in ice and snow

Question 2

Weathering process of Glaciers :Freeze-Thaw

Answer 2

Water goes into the cracks of rocks and freezes hard during winter
Rocks become weakened by freeze-thawing causing rocks to be eroded easier by GLACIERS
HELPS TO SHAPE JAGGED GLACIAL MOUNTAIN LANDSCAPES

Question 3

Glacial Erosion Processes: Abrasion

Answer 3

-Sandpaper effect, due to rocks in the ice rubbing hard on valley floor. LEAVES SMOOTH SURFACE

Question 4

Glacial Erosion Processes: Plucking

Answer 4

Meltwater beneath glacier freezes around rock.

LOOSE ROCK IS PLUCKED AWAY as the glacier moves

Question 5

Glacial Transportation

Answer 5

Sediment( weathered and eroded rock) carried by a glacier is called a MORAINE

Question 6

Types of Moraines: Lateral Moraine

Answer 6

Forms AT THE EDGE of the glacier

Consists of :SCREE resulting from freeze-thawing

Question 7

Types of Moraines: Ground Moraine

Answer 7

Material transported BELOW THE GLACIER left behind when GLACIER MELTS.

Question 8

Types of Moraines: Terminal Moraine

Answer 8

Forms when MATERIAL PILES UP AT THE GLACIER SNOUT

FORMS A RIDGE across the valley

Question 9

Glacial Movement: Rotational Slip and Basal Slip

Answer 9

In Summer meltwater, LUBRICATES glacier so that it can SLIDE DOWN- Basal Slip
In Hollows high on the valley side, movement may be more curved- Rotational Slip