Plate Tectonics

4. earths crust located under the ocean
7. A weak spot in the crust where magma has come to the surface.
8. The process that creates new sea floor as plates move away from each other at the mid-ocean ridges.
9. hypothesis that says continents look like they fit together like a puzzle; Ancient Fossils of the same land animals have been found on different continents across oceans; glacier evidence shows that the continents have drifted; Age of the rock on the ocean floor shows that the sea floor is spreading.
11. Sections of the Earth's crust that move due to convection currents.
14. Earth's outermost layer.
15. The layer of hot, solid material between Earth's crust and core.

1. A deep valley that forms where two plates move apart.
2. divergent boundary in the middle of the Atlantic Ocean where sea floor spreading occurs.
3. the movement of a fluid, caused by differences in temperature, that transfers heat from one part of the fluid to another.
5. a tectonic plate boundary where two plates collide, come together, or crash into each other; Can cause mountain building or abduction depending on converging plate types; folded mountains.
6. An area where magma from deep within the mantle melts through the crust above it.
10. Plate Boundary formed between two tectonic plates as they separate and move apart at this border; forms a rift valley or mid-ocean ridge.
12. A super continent containing all of Earth's land that existed about 225 million years ago.
13. A plate boundary where two plates move past each other in opposite directions and increases risk of earthquakes.