Plate Tectonics

2. when a denser plate sinks below a less dense plate
5. Area where earth's lithospheric plates move apart in opposite directions.
6. A type of rock that forms when particles from other rocks or the remains of plants and animals are pressed and cemented together
7. a mountain or hill, typically conical, having a crater or vent through which lava, rock fragments, hot vapor, and gas are being or have been erupted from the earth's crust
10. line along which a large body of water meets the land.
12. Area where the Earth's lithospheric plates are pushed together
13. Point on Earth's surface directly above an earthquake's focus
15. The thin and solid outermost layer of the Earth above the mantle

1. The partially melted layer of the mantle on which pieces of the lithosphere floats and move
3. the rigid outer part of the earth, consisting of the crust and upper mantle.
4. the layer of the earth between the crust and the core
8. A series of processes on the surface and inside Earth that slowly changes rocks from one kind to another
9. A supercontinent containing all of earth's continents that existed about 225 million years ago
11. forms where two plates slide past each other
14. Shaking and vibration at the surface of the earth resulting from underground movement along a fault plane of from volcanic activity