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