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WorksheetsIntroduction to Glaciation
Total questions: 12
Worksheet time: 6mins
What are glaciers?
Masses of snow and ice only found at the North Pole.
Large amounts of snow fall during winter months
A slowly moving mass of ice formed by the accumulation and compaction of snow.
Times when there is a build up of ice and snow.
Where are glaciers found?
Iceland, Greenland, Arctic & Scotland.
Greenland, Antarctica, Kenya & Japan.
Patagonia, Iceland, Kenya & Greenland.
Patagonia, Scotland, The Lake District & Iceland
What is an Ice Age?
A time when temperatures are low enough for ice to form glaciers and ice sheets. Polar ice moves into higher latitudes.
A time when temperatures are low enough for ice to form glaciers and ice sheets. Polar ice moves into lower latitudes.
A time when temperatures are low enough for ice to form glaciers in the Arctic.
A time when temperatures are high enough for ice to form glaciers and ice sheets. Polar ice moves into lower latitudes.
What are the two main types of glacier we have looked at?
Alpine glaciers and continental quilts.
Alpine ice sheets and continental glaciers
Ice sheets and ice bergs.
Continental ice sheets and alpine glaciers.
What is meant by 'the zone of accumulation?'
The area where snowfall builds up and exceeds the losses of snow and ice.
The area where snow melts and turns into a glacial river.
The loss of ice and snow from a glacier system
What is 'plucking'?
The mechanical removal of pieces of rock from a bedrock face that is in contact with glacier ice.
A decrease in the length of a glacier compared to a previous point in time.
Multiple, generally parallel, linear grooves, carved by rocks frozen in the bed of a glacier into the bedrock over which it flows.
The chemical weathering of rock.
What is 'abrasion'?
The decay and break up of rocks on the Earth's surface by natural chemical processes.
When a fragment of rock is detached by sliding, toppling, or falling, and falls along a vertical or sub-vertical cliff.
Sorrow for one's sins that arises from a motive other than that of the love of God.
The process of scraping or wearing something away.
This the the sequence of what type of weathering?
1) Cracked rock. 2) Water in crack freezes and expands.
3) Crack widens & deepens. 4) Over time the repeated freeze and expansion of ice breaks the rock.
Frieze-thaw weathering
Freeze-thaw weathering
Freeze-thor weathering
Frieze-thor weathering
What are the straight grooves carved by rocks frozen in the bed of a glacier into the bedrock called?
Myofibril
Scratches
Strata
Striations
Which of the following are landforms NOT created by glacial erosion?
U shaped valley
Pyramidal peak
Toblerone
Arete
How confident are you in being able to explain ablation, accumulation, freeze-thaw, plucking and abrasion?
Very confident.
Fairly confident.
OK
Not very confident
Which is you favourite character from Ice Age?
Scrat
Sid
Manfred/Manny
Diego
