Across
- 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.
Down
- 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.