Exploring the Earth

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Across
  1. 3. Grassy plain in tropical or subtropical regions.
  2. 5. Landform where a river meets the sea, often triangular.
  3. 6. A fertile area in a desert, often with water.
  4. 8. Piece of land surrounded by water.
  5. 9. A collection of maps.
  6. 12. The imaginary line that divides the Earth into northern and southern hemispheres.
  7. 13. The largest landmass on Earth, there are seven of them.
Down
  1. 1. A large, steep landform that rises above the surrounding terrain.
  2. 2. Dense forest in tropical regions with high rainfall.
  3. 4. Collection of maps.
  4. 5. Dry, barren area of land, usually covered with sand or rocks.
  5. 7. Deep valley, often with a river flowing through it.
  6. 10. Group of islands.
  7. 11. Mountain with an opening through which lava and gases can escape.