Earth vocab
Across
- 3. Located between the mantle and the outer core
- 5. Extinction events that occur over a longer time period
- 7. Tectonic plates move away from each other, usually forms new crust and rift valleys.
- 9. Sudden events that led to mass extinction
- 11. Includes the crust and upper part of the mantle, and is divided into tectonic plates.
- 12. Rock formed when lava or magma cools and hardens
- 13. Large, rigid pieces of the Earth's lithosphere that move and interact with each other along plate boundaries
- 14. Tectonic plates move toward each other, usually forms mountains and volcanoes
Down
- 1. Hot material rises, cooler materials sink. it drives plate tectonics
- 2. The semi-fluid layer of the mantle where convection currents happen
- 4. Formed as a result of high temperatures and pressure deep within earth changing a rock that already existed
- 6. Instruments used to measure and record seismic waves
- 8. A group of the same species living in the same area
- 10. Forms after weathering and erosion when sediments compact and cement