Across
- 2. a hypothetical landmass in the Northern hemisphere.
- 4. a mountain with a vent that lava comes through when it erupts.
- 7. destructive mudflow on a volcano.
- 9. the liquid layer of Earth's core.
- 10. slab of rock made up of Earth's upper.
- 12. the process of being worn.
- 13. the innermost layer of Earth
- 15. any of the 7 main landforms on Earth.
- 17. location where two plates meet.
- 18. the process of being eroded by wind, water or ice.
- 19. the hot rock and ash that comes from an eruption.
Down
- 1. lava in the Earth's lower layers.
- 3. German meteorologist and geophysicist.
- 5. A naturally formed feature on Earth's surface.
- 6. heat driven cycles that occur In the air, ocean, and mantle.
- 7. molten rock from a volcano.
- 8. The outermost layer of Earth.
- 11. a supercontinent 280-230 million year ago.
- 14. inactive
- 16. horizontal movements of continent plate.