Across
- 1. Winds rotating inward to an are of low atmospheric pressure.
- 2. Results when one block slips down the fault line or plane of breakage.
- 3. Process of within the Earth involving intense heat and/or pressure.
- 4. A large volcanic range that runs along the middle of the ocean.
- 8. Downward bending fold.
- 9. Device for measuring movements in the Earth's crust.
- 10. Theory which suggests that the Earth's crust is made of solid plates moving relative to each other.
- 13. Igneous rock formed from magma that was cooled slowly beneath the Earth's surface.
- 14. Results when one block slides up the fault line or plane of breakage.
- 18. A bend in a layer of rock or in another planar feature such as foliation or the cleavage of the mineral.
- 20. Coming closer together.
Down
- 1. The circulating path of a liquid caused by the application of heat.
- 5. Processes involving molten material in he Earth; rock formed from molten material.
- 6. A violent movement crystal plates along cracks in the plate.
- 7. Igneous rock which has cooled rapidly.
- 11. Soli, rocky layer of Earth.
- 12. Spread out.
- 15. Position on the Earth's surface directly above the focus of an earthquake.
- 16. A long high sea wave caused by an earthquake or other disturbance.
- 17. A type of mountain having a vent or opening which lava, solid rock, cinder, ash and gases may erupt.
- 19. Upward bending fold.
