Across
- 4. new oceanic crust is formed as tectonic plates pull apart and magma
- 6. Sudden events that led to a mass extinction
- 7. Located between the mantle and the outer core
- 9. where tectonic plates SLIDE past each other. causes earthquakes
- 13. Includes the crust and upper part of the mantle, and is decided into tectonics
- 14. formed as a result of high temperature and pressure deep within Earth changing a rock that already existed
- 18. An opening in the Earth's crust through which Multan rock is pushed out and creates new rock
- 19. Extinction events that occur over a longer period of time
- 21. Large, rigid pieces of Earth's lithosphere that move and interact with each other along plate boundries
Down
- 1. The semi-fluid layer of the mantle where convection currents happen
- 2. tectonic plates move toward each other, usually forms mountains and volcanoes
- 3. Forms after weathering and erosion when sediments compact and cement
- 5. tectonic plates move toward each other, usually forms new crust and rift valleys
- 8. Name of the ancient supercontinent when it was all one landmass
- 10. Fractures or zones of weakness in Earth's crust
- 11. Hot material rises,cooler material sink. It drives plate tectonics
- 12. deep, elongated depressions in the ocean, often associated with abduction zones
- 15. formed at plate boundaries usually when plates collide
- 16. Instruments used to measure and record seismic waves
- 17. A group of the same species living in the same area
- 20. Rock formed when lava or magma cools and hardens