Larkin Schwartz (D1-3)

2. a cup like hollow that forms at the top of a volcano around the vent
7. idea that the earth's surface is broken into plates
10. the boundary where plates are sliding past each other
13. the boundary where plates are colliding
15. the point on earth's surface directly above the focus
17. hot, molten rock, below the earth's surface
20. a vibration that spreads out away from a focus when an earthquake happens
21. the idea that many kinds of rocks form flat, horizontal layers

1. heat from below the earth's surface
3. the boundary where plates are moving apart from each other
4. a very hot part of the earth's mantle, where magma can melt through a plate moving about it
5. the name for the large super continent
6. giant ocean waves formed when an earthquake occurs under the ocean
8. magma that reaches the earths surface and flows out of a vent
9. earth's solid, rocky surface containing the continents and ocean floor
11. the amount of energy released by an earthquake
12. a huge crack in the earth's crust
13. the idea that a super continent split apart into pieces, the continents, which drifted in time to their present location
14. the point in earth where an earthquake actually starts
16. the sliding of a denser ocean plate under another plate when they collide
18. a sensitive device that detects the shaking of earth's crust during an earthquake
19. the central opening in a volcanic area through which magma may flow