Across
- 1. Openings of the Earths core.
- 4. A large mass of land
- 6. molten rock ejected by volcanoes in the forms of a liquid
- 9. Outermost layer of the core
- 11. major fracture of the Earth's crust in extreme western North America
- 14. features on surfaces that make the terrain
- 15. Mass landforms are created as result of reaths subterrain movements
- 17. german meterolight and geophysisct
- 18. when volcanoes form above a column of superheated magma
- 19. the breaking down or dissolving of rocks and minerals on the surface of earth
- 22. the location where plates meet
- 23. a large area of land long ago consisted in the south hemisphere
Down
- 2. the movement of continents resulting from the motion of tectonic plates.
- 3. occur along divergent plate boundaries, where new ocean floor is created as the Earth's tectonic plates spread apart
- 5. shaking of the earth
- 7. stopped for a long period of time
- 8. a hypothetical land mass in the northern hemisphere in the paleozic era
- 10. a molten mixture of lava and molten rock found beneath the surface
- 12. Inner layer of the earth
- 13. heat-driven cycles that occur in the air, ocean, and mantle.
- 14. a hot or cold mixture of water and rock fragments
- 15. a hot (typically >800 °C, or >1,500 °F ), chaotic mixture of rock fragments, gas, and ash that travels rapidly
- 16. he outermost layer of the Earth's surface that is ruptured by the volcano
- 20. the wearing away of rocks and other deposits on the earth's surface by the action of water, ice, wind, etc
- 21. supercontinent formed in the paleozic era
