Across
- 3. Where tectonic plates slide past each other. Causes earthquackes
- 5. Deep, elongated depression in the ocean, often associated with subduction zones
- 6. Name of the ancient supercontinent when all one landmass
- 9. an opening in the earth's crust through which molten rock is pushed out and creates new rock
- 10. located between the mantle and the outer core
- 13. formed at plate boundaries usually when plates collide
- 15. New oceanic crust if formed as tectonic plates pull apart and magma rises
- 16. Insturments used to measure and record seismic waves
- 19. Formed as a result of high temperature and pressure deep within earth changing a rock that already existed
- 20. Tectonic plates move away from each other, usually Forms new crust and rift valleys
- 21. tectonic plates move toward each other, usually forms mountains and valcanoes
Down
- 1. plates large rigid pieces of the earth lithosphere that move and interact with each other along plate boundaries
- 2. hot material rises, cooler meterals sink. It drives plate tectonics
- 4. that occur over a longer time period
- 7. Includes the crust and upper part of the mantle, and is divided into tectonic
- 8. A group of the same species living in the same area
- 11. Sudden Events That led to a mass extinction
- 12. fractures or zones of weakness in the Earth's crust
- 14. Rock formed when lava or magma cools and hardens
- 17. The semi-fluid layer of the mantle where convection currents happen
- 18. Forms after weathering and erosion when sediments compact and cement