Across
- 1. Rapid flow of snow down a slope
- 4. Mountain that erupts with lava, ash, and gases
- 7. Violently rotating column of air extending from a thunderstorm to the ground
- 8. Rapid flow of mud and debris down a slope, often after heavy rain
- 11. Cracking of soil or rock caused by sudden freezing and expansion
- 12. Uncontrolled fire burning in forests or grasslands
- 14. Prolonged period of excessively hot weather
- 15. Overflow of water onto normally dry land
- 17. Rapid downward movement of rock, soil, and debris
- 18. Extended period of unusually low rainfall, leading to water shortage
Down
- 2. Rotating storm system, includes hurricanes and typhoons
- 3. Collapse of the ground surface due to underground erosion
- 5. Space rock that survives passage through Earth's atmosphere and hits the ground
- 6. Giant ocean wave triggered by an underwater earthquake or landslide
- 7. Severe storm with lightning, thunder, and heavy rain
- 9. Severe snowstorm with high winds and low visibility
- 10. Period of unusually cold weather
- 13. Shaking of the Earth's surface caused by shifting tectonic plates
- 16. Storm that produces large chunks of ice called hail
- 19. Powerful rotating storm with high winds and heavy rain