Plate Tectonics

1. A large supercontinent which formed millions of years ago
6. Violent shaking of the Earth which is caused by rocks breaking under stress
8. A fracture in rock where the tectonic plates have moved
9. The layer of molten rock located beneath the Earth's crust
11. A mountain with a vent where magma have or are erupted
13. A thin part of the crust that which lays under the oceans
15. A series of underwater mountains that form as a result of tectonic plates moving apart and allowing magma to rise to the surface
18. The boundary between two tectonic plates that are moving together
19. The current or flow of air or liquid that results from the transfer of thermal energy through convection
22. A theory that the middle of the ocean is spreading apart, forming new oceanic crust
23. The continual movement of the continents over time
26. The transfer of the thermal energy by the movement of molecules in air or liquid from one place to another
29. The boundary between two tectonic plates that are moving apart
30. Lithosphere; the outer layer of the Earth

2. the geologist which first thought of the thoery of continental drift
3. A deep valley that forms as a result of tectonic plates moving apart on land
4. A series of large waves that result from an underwater earthquake
5. The movement of one tectonic plate under another tectonic plate
7. Underwater cliffs between the beach and the ocean
10. A large leyer of solid rock that covers part of the surface of the Earth; Movement of tectonic plates can cause earthquakes
12. A deep ditch under the ocean along a tectonic plate boundary
14. A place where two tectonic plates colided which causes a large land mass to elevate
16. Core The layer of the Earth which is responsible for the magnectic field
17. The boundary between two tectonic plates that are sliding past each other
20. Molten rocks which appear on the surface of the Earth
21. Semiliquid rock found beneath the Earth's surface
24. A place in the mantle that melts rocks into magma
25. The theory that the surface of the Earth is divided into a series of plates that are continually moving
27. Something that acts like a liquid but is a solid
28. The centre of the Earth