Across
- 3. the outer layer of the earth
- 5. a violently rotating column of air
- 7. the centre of the earth
- 9. the second layer of the earth
- 10. a deep depression in the deepest part of the ocean
Down
- 1. a rupture in the earth's crust that allows hot lava to escape
- 2. a large wave formed by underwater earthquakes
- 4. a series of mountains that are arranged in a line on high ground
- 6. the third layer of the earth
- 8. the rubbing or movement of tectonic plates