Across
- 5. An imaginary line dividing the Earth into two halves (7 letters)
- 7. A large mass of ice that moves slowly over land (7 letters)
- 10. A dry, barren land with little rain (6 letters)
- 11. A mountain that erupts with lava and ash (7 letters)
- 12. The general weather conditions of an area (7 letters)
- 13. A landform surrounded by water on three sides (9 letters)
- 14. A natural flowing watercourse (5 letters)
- 16. A flat elevated landform (7 letters)
- 17. A cold, treeless biome with frozen ground (6 letters)
- 18. A deep valley with steep sides, often with a river (6 letters)
Down
- 1. A large natural elevation of the Earth's surface (8 letters)
- 2. A piece of land surrounded by water (6 letters)
- 3. The main city of a country where its government is located (7 letters)
- 4. A large area covered with trees (6 letters)
- 6. A vast body of saltwater covering most of Earth (5 letters)
- 7. A hot spring that erupts with steam and water (6 letters)
- 8. A grassy plain in tropical and subtropical regions (7 letters)
- 9. A landform at the mouth of a river, often triangular (5 letters)
- 12. A large landmass on Earth (9 letters)
- 15. A sheltered area of water where ships dock (6 letters)