Going Going GONE

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Across
  1. 1. A huge pile of slow moving ice
  2. 4. Very heavy
  3. 6. Lots of fast moving water
  4. 7. The way the water flows
  5. 10. The river that made the Grand Canyon
  6. 11. Where the sand was taken from
  7. 12. Loose rocks and soil
Down
  1. 2. The sides of the river
  2. 3. Where the trees are
  3. 5. Built to cross rivers
  4. 6. Where the people live
  5. 8. To wear away
  6. 9. Where the animals are