Across
- 3. an opening in the earths crust where molten rock comes out and forms new rocks
- 6. rock formed when lava cools
- 10. the semi fluid Layer of the mantle
- 13. a group of the same species living in an area
- 15. located between the lower mantle and outer core
Down
- 1. Nome of the ancient super continent
- 2. includes the crust and upper mantle
- 4. instruments used to measure and record seismic waves
- 5. new oceanic crust is formed as tectonic plates pull apart and magma rises
- 7. hot materials rises, cooler material sinks. it drives plate tectonics
- 8. made from high temperatures and pressure
- 9. forms from weathering and erosion
- 11. fractures or zones of weakness in the earths crust
- 12. formed at plate boundaries
- 14. deep, elongated depressions in the ocean