Tectonics/Earth

2. A giant wave/waves that can result after an earthquake, like the Japan video clip.
6. The crust under the oceans, it is more dense than the continental crust and is mostly made from basalt.
7. A liquid layer of the Earth made of nickel and iron.
9. A horseshoe shaped area in the Pacific that his home to 75% of active volcanoes and roughly 90% of earthquakes.
11. When magma pools in places under the crust and then it erupts you get this.
13. The thickest layer of the Earth that the crust floats upon.
15. The thinnest outer most layer of the Earth.
17. When one part of the crust is denser than another and it goes beneath the less dense one.
18. When two plate boundaries move apart from one another.

1. When two plate boundaries slide past each other.
3. The crust under the land, it is less dense than oceanic crust and is made mostly of granite.
4. The theory that explains how the different areas/plates of the Earth move.
5. This occurs between divergent boundaries of oceanic crust as the crust is ripped apart and new floor is made.
8. When two plate boundaries move towards each other.
10. When two pieces of continental crust move towards each other they push up the land and create?
12. What magma is called when it is on the surface.
14. Energy being released from tectonic activity causing the ground to shake.
16. When all of the continents were connected to one another it was know as this "P" word?
19. The densest layer of the Earth, believed to be solid iron and nickel.