Plate Tectonics

2. The uppermost layer of the oceanic portion of a tectonic plate.
5. The layer of igneous, sedimentary, and metamorphic rocks that forms the continents.
7. A rupture in the crust that allows hot lava, volcanic ash, and gases to escape from a magma chamber below the surface.
8. The upper layer of the earth's mantle, below the lithosphere.
11. Waves of energy that travel through the Earth's layers, and are a result of an earthquake, explosion, or a volcano.
12. A process that occurs at mid-ocean ridges, where new oceanic crust is formed through volcanic activity and then gradually moves away from the ridge.
13. The outermost solid rocky shell of Earth.
15. States that parts of the Earth's crust slowly drift atop a liquid core.
17. The shaking of the surface of the Earth, resulting from the sudden release of energy in the Earth's lithosphere that creates seismic waves.
18. The region of the earth's interior between the crust and the core.

1. An actively deforming region where two or more tectonic plates or fragments of the lithosphere move toward one another and collide.
3. Supercontinent that incorporated almost all the landmasses on Earth.
4. Meteorologist that came up with the theory of continental drift.
5. A current in a fluid that results from convection.
6. The uppermost layer of the oceanic portion of a tectonic plate.
9. Theory that describes the large-scale motion of Earth's lithosphere.
10. Fluid layer composed of iron and nickel that lies above Earth's solid inner core and below its mantle.
14. The rigid outer part of the earth, consisting of the crust and upper mantle.
15. the movement caused within a fluid by the tendency of hotter to rise, and colder to sink.
16. Earth's innermost part It is composed of an iron and nickel.