Earth Science

6. A scientific instrument used to measure and record seismic waves.
7. A thick, liquid layer inside the earth that forms a shell around the inner core.
9. A fault in which the overlaying plate has been pushed upwards.
10. The layer of mantle below the lithosphere.
14. The action of continents splitting apart and rearranging themselves over extremely large portions of time.
17. A hot liquid or semi-liquid found beneath the Earth's crust and becomes lava when cooled.
18. A fault in which at least one of the plates has moved horizontally.
20. The boundary between two plates where faults occur.

1. The point below the surface of the Earth where an earthquake begins.
2. The solid, innermost part of the Earth that provides our planet with most of it's heat.
3. The point on the surface on the Earth above where an earthquake begins.
4. The shaking movement that occurs during an earthquake.
5. The name given to a super-continent that existed several billion years ago, when each continent was together as one.
8. The theory that the planet's crust is divided up into several pieces that fit together like a jigsaw, and are constantly moving.
11. A Japanese word describing a giant oceanic wave caused by an undersea earthquake.
12. The outermost layer of the Earth, consisting of solid rock.
13. The southernmost of the two continents formed when Pangaea split, comprising of what is noe Australia, Antarctica, South America, India and Africa, among others.
15. A fault in which the overlaying plate has slipped downwards.
16. The crust and upper mantle of the Earth.
19. The part of the Earth found between the crust and the core, mad up up of semi-liquid rock.