Geology Vocabulary

3. Core The innermost layer of the Earth; composed of a solid ball of iron.
4. Molten rock erupted from volcanic structures.
5. A type of rock from the changes of other types of rock via changing environments.
10. When two plate boundaries move towards each other and collide.
11. The secondary wave; only able to pass through solids.
12. A type of rock formed from the solidification of molten rock.
15. The location directly above the earthquake’s focus.
16. A supercontinent where all current continents fit together.
17. The point within the Earth where earthquakes begin.
18. Plate Gigantic solid pieces of crust that make up Earth’s outermost layer.
19. The molten rock underneath the earth’s crust.

1. A boundary where new crust is created.
2. The fastest seismic wave.
4. Consists of all the minerals of the Earth’s crust.
6. An upper part of the mantle; what the Earth’s crust floats on.
7. Core A liquid composed of nickel and iron. It is always spinning.
8. A measure of the strength of earthquakes.
9. An instrument used to measure the motion of the ground during an earthquake.
10. The movement of the Earth mantle which moves the plates.
13. The cracks in the Earth’s crust where movement occurs.
14. A series of huge ocean waves caused by a rapid disturbance of sea water.