Across
- 5. Includes the crust and upper part of the mantle, and is divided into tectonic plates.
- 7. Hot material rises, cooler materials sink. It drives plate tectonics.
- 9. Are sudden events that led to a mass extinction.
- 10. Forms after weathering and erosion when sediments compact and cement.
- 11. A group of the same species living in the same area.
Down
- 1. Are Extinction events that occur over a longer time period
- 2. Formed as a result of high temperature and pressure deep within earth changing a rock that already existed.
- 3. The semi-fluid layer of the mantle where convection currents happen.
- 4. located between the mantle and the outer core-
- 6. Rock formed when lava or magma cools and hardens.
- 8. Instruments used to measure and record seismic waves.