Earth Science

2. core- composed of liquid iron and nickel.
4. are openings in Earth's surface, that, when active, spew out gases, chunks of rock, and melted rock.
7. is the molten layer of the upper mantle.
9. core- mostly solid iron, at tremendous temperature and pressure.
10. is the crust and upper portion of the upper mantle.
12. is the point on Earth's surface directly above the focus.
14. plate boundaries that come together.
15. thickest layer, mostly solid except for upper mantle being able to flow like thick toothpaste.

1. is the action of one plate pushing below another.
3. is an area where molten rock rises to Earth's surface.
5. are used to measure seismic wave energy.
6. plates- make up the lithosphere, which floats on the asthenosphere.
8. is the shaking of the Earth's surface resulting from the release of accumulated caused by the movement of tectonic plates.
11. is a very large sea wave produced when an earthquake occurs underwater.
13. plate boundaries that slide in opposite directions.