Plate Tectonics Crossword
Across
- 5. Rising and falling of a fluid caused by temperature or density differences within the material.
- 7. The sudden and violent shaking of the ground, sometimes causing great destruction.
- 9. An elevated region with a central valley on an ocean floor at the boundary between two diverging tectonic plates where new crust forms from upwelling magma (no hyphen in spelling).
- 10. A lowland region that forms where Earth's continental crust is pulled apart at divergent boundaries.
- 13. Massive, irregularly shaped slabs of solid rock made up of both continental and oceanic lithosphere.
- 15. Any process that happens on earth, such as weathering, erosion or plate tectonics.
- 16. A place where the earth's plates move horizontally past each other.
Down
- 1. The rigid outer area of the earth, consisting of the crust and upper mantle.
- 2. The upper layer of the earth's mantle, below the lithosphere, in which convection currents occur.
- 3. The theory that the outer layer of earth, the lithosphere, is divided into plates that move around on the asthenosphere.
- 4. The expulsion of magma and gas from the Earth's interior.
- 6. The underwater part of earth’s crust formed by divergent plate boundaries.
- 8. A place where the earth’s plates come together.
- 11. A break or crack in the earth’s lithosphere along which rocks move.
- 12. A place where the earth’s plates separate.
- 14. A long narrow steep-sided indent in the earth's oceanic crust.