Across
- 2. a slow movement of the continents on a deep-seated vicious zone within the earth
- 5. molten rock material within the earth from which igneous rock results by cools
- 9. a hot or cold mixture of water and rock fragments
- 12. openings or vents where lava/tephra erupt to Earth's surface
- 14. a stream of fluid propelled by thermal convection
- 15. a sudden release of strain energy in the Earth's crust
- 17. the action of the weather conditions
- 19. majority fracture of the Earth's crust in extreme Western North America
- 20. the outermost solid shell of a rocky planet or natural satellite/Earth
Down
- 1. a super continent that incorporated almost all the landmasses on Earth
- 3. molten rock that issues from a volcano or from a fissure in the surface of a planet or moon
- 4. a layer within the Earth between the crust and core
- 6. a seafloor mountain system formed by plate tectonics
- 7. the liquid layer of Earth's core, located between the inner core and mantle
- 8. a natural feature of a land surface
- 10. the action or process of eroding
- 11. one of the six or seven greats divisions of land on the globe
- 13. not active or growing
- 16. the innermost layer of the Earth
- 18. the location where two plates meet