The Cryosphere

12345678
Across
  1. 2. a figure with 5 strait sides and angles
  2. 3. when the ground is taken away by wind, water, of other natural forces
  3. 6. the frozen water on Earth
  4. 7. a flat, treeless Artic region
  5. 8. frozen water
Down
  1. 1. slowly moving mas of ice
  2. 4. cracks in the ground that are filled with ice
  3. 5. ice that is always frozen