Across
- 2. a long period when there is little or no rain
- 6. a large amount of ice, snow, and rock falling quickly down the side of a mountain
- 7. an occasion when a volcano explodes, and flames and rocks come out of it
- 11. a mass of rock and earth moving suddenly and quickly down a steep slope
- 12. a severe snow storm with strong winds
- 13. a sudden event that causes very great trouble or destruction
Down
- 1. the number of times something happens within a particular period, or the fact of something happening often or a large number or times
- 3. a storm with thunder and lightning and usually heavy rain
- 4. the assumption that the same natural laws and processes that operate in our present-day scientific observations have always operated in the universe in the past and apply everywhere in the universe
- 5. a sudden violent movement of the earth's surface, sometimes causing great damage
- 8. small, hard balls of ice that fall from the sky like rain
- 9. a fire that is burning strongly and out of control on an area of grass or bushes in the countryside
- 10. to cause to fill or become covered with water, especially in a way that causes problems
- 14. an extremely large wave caused by a violent movement of the earth under the sea