Plate Tectonics

1. A mound or mountain composed of extrusive igneous rock.
5. Core The zone of Earth between the mantle and the inner core.
6. The mostly solid part of Earth between the crust and the outer core.
8. Waves Waves that only travel through solids and not liquids or gases.
9. Raised up; as in mountain building.
12. Wave The energy wave given off by an earthquake.
14. The process by which one plate is pushed down and beneath the other.
16. A supercontinent that existed on the Earth millions of years ago and covered about one-third of its surface.
18. Core The innermost zone of Earth's core.
19. The outermost portion of Earth's solid lithosphere.

2. Trench The long, steep, and narrow depression produced by the bending down of subducting plates, which warps the crust.
3. The bends in layered rock due to movement in the lithosphere; a type of deformed rock.
4. A crack in a mass of a rock or soil along which there has been displacement, shifting, or movement of the rock or soil on each side of the crack.
7. Very fast large wavelength ocean wave or waves produced by impact events and disturbances of the ocean floor caused by earthquakes, volcanic eruptions, or landslides.
10. The whole crust and the uppermost part of the mantle.
11. The place on Earth's surface lying directly above the focus, or the origin of an earthquake.
13. Ridge A mountain range at the bottom of the ocean; forms at zones of diverging plates.
15. Plate Section of the lithosphere that moves around Earth's solid surface.
16. Waves The fastest moving of all earthquake waves.
17. Wegener Man who gave us Continental Drift Theory.