Glaciation WW Quiz

Edit Answers
123456789101112131415161718192021222324
Across
  1. 1. The lake which forms in the hollow at the base of a cwm
  2. 4. The downstream end of a glacier.
  3. 7. Large block of rock which was picked up by a glacier then deposited, sometimes hundreds of miles away, when the ice melted
  4. 9. Zone of ice loss from a glacier due to surface melting, evaporation and the calving of icebergs.
  5. 10. An erosional process. Ice freezes to rocks surrounding the glacier. As the glacier moves the rocks are pulled with the ice to which they are attached.
  6. 11. A valley that appears to 'hang' on the steep sides of a main valley, its streams flowing into the main valley via waterfalls.
  7. 14. a former river valley spur which has been sliced off by a valley glacier.
  8. 16. Moraine which collects along the front of a glacier
  9. 17. Sheep rocks
  10. 20. a period of colder climate when ice sheets form on the land, causing a lowering of sea level.
  11. 22. Head gear for a glacier? A large area of ice from which glaciers may flow
  12. 24. long, narrow lakes found in glaciated valleys
Down
  1. 2. An erosional process. Rocks embedded at the base and sides of a glacier scrape away the surface below.
  2. 3. These are scratch marks found on rocks which were eroded by glaciers
  3. 5. A glacier that originates high up a mountain and then flows down a valley. This is the usual type of glacier, also known as an Alpine glacier.
  4. 6. The crevasse which forms at the back of the glacial ice where it meets the cirque backwall. It is formed as the ice moves down and away from the rock wall.
  5. 8. After the ice has melted and the river returns to the valley, it often looks tiny and out-of-place in its glacial trough.
  6. 12. knife like rock edge formed by the backward erosion of two corries.
  7. 13. it occurs in cold climates when temperatures are often around freezing point and where exposed rocks contain many cracks.
  8. 15. A peak formed when three or more corries erode back against each other
  9. 18. Material from a terminal moraine washed down stream may be deposited here
  10. 19. The characteristic shape of a glaciated valley
  11. 21. Another word for Boulder Clay
  12. 23. A steep armchair shaped hollow formed by the erosion of the rock by snow and ice