very intresting crossword puzzle about the cryosphere

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Across
  1. 3. ice underground
  2. 5. a large moving mass of ice
  3. 6. a deep ocean crack
  4. 7. a glacier in alaska
  5. 9. short cone shaped mounds deposited by water
Down
  1. 1. a mass of rocks and sediment carried down and deposited by a glacier
  2. 2. long ridges of sorted deposits
  3. 3. ice-cored hills that rise abruptly out of flat landscapes in the artic
  4. 4. scratches left in rock by a glacier
  5. 8. a glacier in alaska