Natural objects

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Across
  1. 3. a flow of water across the land into the sea
  2. 4. the shape of the land next to the sea
  3. 5. a forest in a tropical area with a lot of rain
  4. 7. a large area of water with land around it
  5. 8. a large mass of ice which moves slowly
Down
  1. 1. water which is dropping from the height
  2. 2. an area covered with sand or rocks, with no rain
  3. 3. a group or line of mountains
  4. 6. a very large area of sea