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