Plate Tectonics

5. A thin part of the crust that which lays under the oceans
6. A series of large waves that result from an underwater earthquake
8. A large supercontinent which formed millions of years ago
9. Semiliquid rock found beneath the Earth's surface
11. A series of underwater mountains that form as a result of tectonic plates moving apart and allowing magma to rise to the surface
15. The boundary between two tectonic plates that are sliding past each other
18. The theory that the surface of the Earth is divided into a series of plates that are continually moving
20. A place where two tectonic plates colided which causes a large land mass to elevate
22. The layer of molten rock located beneath the Earth's crust
27. the geologist which first thought of the thoery of continental drift
28. Underwater cliffs between the beach and the ocean
29. The boundary between two tectonic plates that are moving together
30. A place in the mantle that melts rocks into magma

1. The transfer of the thermal energy by the movement of molecules in air or liquid from one place to another
2. The current or flow of air or liquid that results from the transfer of thermal energy through convection
3. The boundary between two tectonic plates that are moving apart
4. A fracture in rock where the tectonic plates have moved
7. Core The layer of the Earth which is responsible for the magnectic field
10. Violent shaking of the Earth which is caused by rocks breaking under stress
12. A theory that the middle of the ocean is spreading apart, forming new oceanic crust
13. The centre of the Earth
14. The continual movement of the continents over time
16. Something that acts like a liquid but is a solid
17. Molten rocks which appear on the surface of the Earth
19. A mountain with a vent where magma have or are erupted
21. The movement of one tectonic plate under another tectonic plate
23. A deep valley that forms as a result of tectonic plates moving apart on land
24. A large leyer of solid rock that covers part of the surface of the Earth; Movement of tectonic plates can cause earthquakes
25. A deep ditch under the ocean along a tectonic plate boundary
26. Lithosphere; the outer layer of the Earth