Glaciers

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Across
  1. 3. ice sheets covered huge areas of the earth
  2. 5. great river of ice
  3. 8. when ice moves forward it plucks large chunks out of the ground
  4. 10. weather conditions in an area measured over a long period
  5. 13. glaciers melted while others joined together
  6. 14. small tributary valley that hangs above main glaciated valley
  7. 15. narrow steep sided ridge between two cirques
  8. 16. as rocks move they scrape and smooth the surface
Down
  1. 1. v-shaped valley straightened and flattened by glacier to become u-shaped
  2. 2. interlocking spur whose head was eroded based glacier moved through the valley
  3. 4. steep sided mountain eroded by cirques
  4. 6. ice begins to move slowly to lowland areas under the influence of gravity
  5. 7. during the ice age there are warmer periods
  6. 9. lake inside a cirque
  7. 11. lakes when a narrow lake occupies the floor of a valley and when ribbon lakes are linked
  8. 12. large hollow on the diode of a mountain with three steep sides. It is the birthplace of a glacier