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Formation/Facts about Glaciers
Glacier Types/Features
Glacier Movement
How Glaciers Shape the Land
Climate Change
100
A moving mass of ice and snow.
What is a glacier?
100
This type of feature forms when a glacier flows over a steep cliff and breaks up.
What is an icefall?
100
This type of sheet of ice is rarely more then 5m thick and breaks easily.
What is pack ice?
100
This process occurs when glacial water flows into cracks in rocks, freezes, expands, and splits rocks into pieces.
What is glacial erosion?
100
An increase in this greenhouse gas is most likely the main contributor to climate change.
What is carbon dioxide?
200
An upland area of ice that feeds two or more glaciers.
What is an icefield?
200
A glacier that forms in a mountain range.
What is a valley glacier?
200
Formed when large chunks of ice that break loose from continental glaciers.
What is an Iceberg?
200
These parallel marks are left behind as glaciers move forward gouging bedrock.
What are striations?
200
Burning fossil fuels and cutting down trees and forests are two examples of these types of activities that may contribute to global warming.
What are human activities?
300
When the snow piles so high that the pressure on the ice on the bottom causes it to change from a solid to a liquid.
What causes partial melting?
300
Antarctica is covered by this type of glacier.
What is a continental glacier?
300
The crushing weight of ice layers above cause this characteristic of a glacier.
What is flexibility in a glacier?
300
The popular Disneyland ride, called the Matterhorn, takes part of its name after this sharpened peak of a mountain.
What is a horn?
300
An increase in volcanic activity, adding large amounts of dust to the atmosphere, may have caused this phenomenon in the past.
What is an ice age?
400
This type of water is locked in glaciers.
What is freshwater?
400
A fissure, or crack in the ice.
What is a crevasse?
400
A type of movement when a glacier melts faster then it flows.
What is a retreating glacier?
400
A big ridge of glacial till deposited in front of a glacier when it stops moving forward.
What is a moraine?
400
This has increased by 0.5∘C in the last 100 years.
What is the mean surface temperature on Earth?