plate tectonics

3. where plates slide sideways past each other.
5. are pieces of Earth's crust and uppermost mantle, together referred to as the lithosphere.
8. is the solid, outer part of the Earth.
11. zones, places where the seafloor is forced under continental plates.
12. a sudden and violent shaking of the ground.

1. scientist who first proposed the theory that the continents drifted.
2. an instrument used to detect and record earthquakes.
4. two plates move toward each other.
6. This type of heat transfer is called.
7. the thin part of the earth's crust located under the ocean.
9. is an underwater mountain range, formed by plate tectonics.
10. made of rock or ices are generally the largest and most massive layer of the planetary body.