Across
- 2. A supercontinent that incorporated almost all the landmasses on Earth.
- 5. A long, narrow and deep depression on the ocean floor caused by convergent plate boundaries.
- 6. When new oceanic crust is formed through volcanic activity then moves away from the ridge
- 9. At a convergent plate boundary, a process in which one lithospheric plate moves beneath another.
- 10. On the ocean floor, at the boundary between two diverging tectonic plates, a mountain range with a central valley creates upwelling magma.
- 11. The thinner and dense plate
- 13. When two plates come together
- 14. An area where cold water that seeped into the Earth's crust is superheated by underlying magma and forced through the vents in the ocean floor
- 15. When two plates slide against each other causing friction
Down
- 1. When large parts of the Earth's crust are constantly moving across the fluid mantle, earthquakes or volcanoes occur between the plates.
- 3. The individual who proposed the theory of continental drift
- 4. The thicker and less dense plate
- 7. Theory suggesting that continents may be able to travel on the Earth's surface
- 8. The Earth's crust's outermost layer
- 12. When two plates move away from each other