Across
- 3. A period of heavy rainfall
- 6. A natural satellite that orbits the Earth
- 8. A dry, treeless region with permafrost
- 11. A natural opening in the Earth's surface, often with lava
- 12. A large body of freshwater surrounded by land
- 14. A hot, dry region with little rainfall
Down
- 1. A small stream of water flowing naturally
- 2. A large body of salt water that covers most of the Earth's surface
- 4. Frozen water falling from the sky
- 5. A grassy plain in tropical and subtropical regions
- 6. A natural elevation of the Earth's surface
- 7. A natural underground chamber
- 9. A large, slow moving mass of ice
- 10. A large area covered with trees
- 13. A tall plant with a trunk and branches