Nature

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Across
  1. 2. A large mass of ice that moves slowly downhill
  2. 8. A vast body of saltwater that covers most of the Earth's surface
  3. 9. A natural mountain or hill that erupts hot lava, ash, and gases
  4. 10. A dry and arid region with little rainfall
Down
  1. 1. A large, flowing body of water that usually empties into a sea or ocean.
  2. 3. A deep valley with steep sides, often with a river running through it
  3. 4. A large natural elevation of the earth's surface rising abruptly from the surrounding level; a large steep hill.
  4. 5. A natural area of sand or pebbles by the sea
  5. 6. A natural feature where water drops from a height over a rocky surface
  6. 7. A word for a dense area of trees and underbrush