Across
- 2. where tectonic plates slid past each other causes earthquakes
- 4. name of the ancient supercontinent when it was all one landmass
- 9. forms after weathering and erosion when sediments compact and cement
- 12. large rigid pieces of the earth lithosphere that move and interact with each other along plate boundaries
- 13. rock formed when lava or magma cools and hardens
- 14. instruments used to measure and record seismic waves
- 15. formed as a result of high temperature and pressure deep within earth changing a rock that already existed
- 17. new oceanic crust is formed as tectonic plates pull apart and magma rises
- 18. the semi-fluid layer of the mantle where convection currents happen
Down
- 1. Extinction events that occur over a longer time period
- 3. sudden events that lead to a mass extinction
- 5. A group over the same species living in the same area
- 6. tectonic plates move away from each other usually forms new crust and rift valleys
- 7. formed at the plate boundary
- 8. tectonic plates move toward each other usually forms mountans and volcanous
- 10. located between the mantle and the outer core
- 11. includes the crust and upper part of the mantel and is divided into tectonics plates
- 16. Hot material rises cooler materials sink it drives plate tectonics