Plate Tectonics

2. the boundary when tectonic plates spread apart.
6. proposed the continental drift theory.
8. a weak spot in the crust where magma comes through the surface.
9. the fault when the plates are divergent.
11. the soft part of the mantle which the tectonic plates move.
16. based on the energy from earthquakes.
17. the location on the surface directly above the focus.
18. when two plates collide with each other and the denser one slides under the other.
19. the solid, rocky, rigid upper part of the mantle.
20. a massive wave created from earthquakes from the ocean floor.

1. measures and records earthquake
3. shaking and sliding of the earths ground caused by masses of rock along a fault.
4. what can occur at convergent boundaries like the alps.
5. the hot, thick, bright red stuff that comes out of a volcano.
7. What boundary forms when two plates collide with each other.
10. the falut when the plates are convergent.
12. the boundary when tectonic plates slides against each other.
13. the thin and most outer layer of the Earth.
14. deep areas in the ocean created by a subducting plate.
15. the super continent which contained all the plates together.