Glaciers

Front 1

What is a pile of debris at the terminus (end) of a glacier called?

Back 1

Terminal Moraine

Front 2

Long narrow, teardrop-shaped hills that form under glacial ice.

Back 2

Drumlin

Front 3

Large boulders transported by ice

Back 3

Erratic

Front 4

Sharp point of a mountain from the convergence of 3 or more corries

Back 4

Pyramidal Peak

Front 5

Valley of a tributary glacier that flowed into a larger one with a deeper valley. Often marked by a waterfall.

Back 5

Hanging Valley

Front 6

Debris carried under the ice

Back 6

Ground Moraine

Front 7

A long, knife-edged ridge that was a divide between 2 glaciers

Back 7

Arete

Front 8

A long, knife-edged ridge that was a divide between 2 glaciers

Back 8

Corrie

Front 9

Water gets into cracks in rocks, freezes and expands. This puts pressure on the rocks.

Back 9

Freeze Thaw

Front 10

When ice the ice pushes loose material in front of it.

Back 10

Bulldozing

Front 11

Fine material such as sand and gravel can get washed away from the front of the glacier meltwater.

Back 11

Outwash

Front 12

Unsorted mixture of material, that is transported by the glacier over large distances.

Back 12

Till

Front 13

Snow is collected it becomes more compact as more snow falls on top. Air is expelled and the snowflakes turn into ice.The ice becomes denser and eventually turns into glacier ice.

Back 13

Zone of accumulation

Front 14

The amount of snow and ice lost from a glacier each year due to melting

Back 14

Zone of Ablation

Front 15

Cliff like edges on the valley side formed when ridges (spurs) that stick out into the main valley are cuff off as the glacier moves past.

Back 15

Truncated spurs

Front 16

Steep sided valleys with flat bottoms, glaciers erode the V shaped to valley to make it wider and deeper - U shaped

Back 16

Glacial Trough

Front 17

Long thin lakes that form in glacial troughs.

Back 17

Ribbon Lakes

Front 18

Bits of rock stuck in the ice grind against the rock below the glacier, wearing it away like sandpaper.

Back 18

Abrasion

Front 19

As the glacier moves forward it pulls pieces of rock out.

Back 19

Plucking