Across
- 2. A very large sea mammal
- 6. A large area of high, flat land
- 8. A period of bad weather with strong winds, rain, snow, or thunder
- 11. A natural stream of water that flows across land toward a sea or a lake
- 12. A black-and-white seabird
- 13. Drops of water that fall from clouds
- 15. A very dry area of land that receives very little rain
- 18. Very large areas of salt water that cover most of the Earth's surface
- 19. The loud sound that follows lightning during a storm
Down
- 1. A thick tropical forest with many plants and trees
- 3. A large area of water completely surrounded by land
- 4. A very high area of land with steep sides
- 5. A low area of land between hills or mountains
- 7. A bright flash of electricity that appears in the sky during a storm
- 9. Frozen water that falls from clouds
- 10. Moving air
- 14. An area of sand or small stones next to the sea or a lake
- 16. A large area of land covered mainly by trees and other plants
- 17. A part of the sea that is partly surrounded by land