Glaciers II Crossword Puzzle

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Glaciers II Crossword Puzzle

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QUESTIONS LIST:

  • u shaped : this is the shape of glacial valleys.
  • drumlins : these are small, hill-like deposits of debris left behind throughout the prairies by continental glaciers.
  • outwash plains : when temperatures warm, and continental ice sheets begin to melt, these may form as water carries & deposits debris once trapped in ice layers.
  • erratics : continental glaciers may deposit these huge, isolated boulders hundreds of kilometers from their point of origin.
  • terminal moraine : this is the term for the huge pile of glacial drift at the farthest advancing end of a glacier.
  • pro glacial : as ablation continues, the terminal moraine may act as a natural dam to create this type of meltwater lake.
  • icefall : this may form when huge blocks of ice break off of a glacier and tumble down either a cliff or into a lake or ocean.
  • ribbon : lakes that form in depressions created by a glacier in a valley bottom are called this.
  • waterfall : . this is a common sight along the edge of a glaciated u-shaped valley; it flows through a hanging valley.
  • recessional : as a glacier recedes, ridges of debris are deposited. this occurs when ablation equals accumulation & the glacier remains stationary, depositing this type of moraine at its snout.
  • hanging : this is a small tributary valley that enters the side of a u-shaped valley far above the valley floor.
  • erosional : many of these features of alpine glaciers can also be created by continental ice sheets.
  • kettle : this is a small lake resulting from the melting of a block of glacial ice in a depression.
  • esker : this is a long, snake-like ridge of stratified glacial deposits that forms when meltwater flows from tunnels at a glacier’s base.
  • crevasse : as an alpine glacier moves over uneven bedrock, the brittle surface layers of glacial ice may fracture into a deep crack called this.
  • truncated spurs : these are steep, often vertical valley walls that are created when a glacier moves through a river valley and transforms it into a u-shaped valley.