Across
- 4. volcanos that have not erupted in a long time but will erupt again
- 5. mostly solid bulk of earths interior
- 9. a hypothetical landmass in the northern hemisphere in the end of the paleozoic era
- 11. a mixture of molten and semi-molten rock
- 12. a seafloor mountain system formed by plate tectonics
- 14. the water of a lake or stream wearing away rocks
- 15. continental land mass drifting apart
- 16. where 2 plates meet
- 17. features on the earth's surface that makes up the terrain
- 18. when two blocks suddenly slip past one another
Down
- 1. outermost layer of the earth
- 2. a large mass of continuous land
- 3. a super continent that had almost all of the landmasses on earth
- 6. opening where lava erupts onto the surface of the Earth
- 7. breaking down or dissolving rocks
- 8. liquid layer outside of the Earths core
- 9. hot molded rock from a volcanic
- 10. heat driven cycles
- 13. innermost layer of the earth