A GLACIER is a BIG MASS of ICE!

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Across
  1. 4. round hole left by retreating glacier
  2. 5. enormous and also called an ice sheet
  3. 9. big mass of slowly moving ice over land
  4. 11. glacier picks up and drags sediment
Down
  1. 1. really big till such as Doane Rock
  2. 2. Iceland's biggest glacier
  3. 3. mounds or ridges deposited by retreating glacier
  4. 6. sediment deposited by melting glacier
  5. 7. mouth of a glacier, also called a snout
  6. 8. scraping or smoothing of rock caused by plucking
  7. 10. sediment deposited randomly by glacier