Across
- 1. the outer layer of a terrestrial planet
- 3. igneous rock that makes up most of the oceanic crust
- 4. the natural separation of differently dense materials over time due to gravity
- 8. the plate boundary in which two plates slide past each other
- 10. the area in which the oceanic plate is forced to during convergence with a continental plate
- 11. the largest part of Earth’s interior
- 12. movement that spreads through the Earth after an earthquake or explosion
- 13. the motion of the segments of the outer layer of the Earth
- 16. the plate boundary in which the two plates move apart
- 17. rock formed from small pieces of other rocks
- 18. the bending of seismic waves
Down
- 1. the plate boundary in which two plates push into each other
- 2. the magnetic field which surrounds the Earth
- 5. rock that has cooled from a molten state
- 6. movement caused by less dense gas or liquid’s tendency to move up
- 7. an area far from a plate boundary in which heat still rises from the interior
- 9. regions of high energy ions in the magnetosphere
- 14. igneous rock that makes up the continental crust
- 15. an instrument which measures the movement of the earth after a seismic event
