Plate Tectonics
Across
- 2. wave, Transverse seismic waves that travels through the Earth
- 4. boundary, Where plates are colliding with each other
- 5. A zone where Earth's crust and mantle and being pulled apart
- 8. The Earth's crust AND upper mantle, it's tectonic plates
- 10. The layer beneath the Earth's crust
- 13. pull, When plates are pulled apart at mid-ocean ridges
- 14. A huge wave in the ocean caused by an earthquake on the sea floor
- 18. plate, A section of the Earth's crust that moves about on the Earth's surface
- 19. spot, An isolated place away from plate boundaries where lots of magma is collected
- 20. The point on the Earth's surface directly above the focus of an earthquake
- 21. The centre of the Earth
- 24. The layer beneath the Earth's crust
- 25. Molten rock that has erupted onto the Earth's surface
- 27. crust, Crust that forms the ocean floor
- 28. Molten rock below the Earth's surface
Down
- 1. A place where extremely hot material from inside the Earth erupts at the surface
- 3. The place below the ground where the earthquake begins
- 6. arc, A chain of islands formed at the edges of plate boundaries, where one plate subducts
- 7. An instrument that detects the seismic waves caused by an earthquake
- 9. When one plate sinks below another during a collision
- 11. Rapid movement of the ground, usually up and down
- 12. push, When older crust is pushed below new ocean crust and squeezes the plates sideways
- 15. mountain, Mountains formed by crust crumpling upwards as plates collide
- 16. wave, A longitudinal seismic wave that travels fast through the Earth
- 17. crust, The crust that forms the ocean floor
- 18. A depression in the ocean floor
- 21. drift, When continents separate by moving across the Earth's surface
- 22. boundary, Where plates are sliding parallel to each other but in opposite directions
- 23. striping, Patterns of magnetism trapped in rocks on each side of plate boundaries
- 26. boundary, Where plates are moving apart in opposite directions