Across
- 2. a period of low rainfall
- 4. a mountain that opens downward to a pool of molten rock below the surface of the earth.
- 6. an instrument that and records details
- 8. a series of high tidal waves
- 9. a sudden accident that causes great damage or loss of life.
Down
- 1. the outermost layer of the Earth
- 3. scale a numerical scale for expressing the magnitude of an earthquake
- 5. sudden shaking of the earth's surface or crust
- 7. Earth's lithosphere (the crust and upper mantle) is divided into a number of large