Earth & Lithosphere

1. The boundary between two rock masses that can move relative to each other.
5. A type of rock that has been changed by pressure and temperature.
7. The theory that describes the movement of Earth's lithospheric plates.
9. The principal ingredient of the mantle.
10. These mountains are formed by magma that does not escape to the surface.
14. A type of rock formed from molten rock.
15. The Earth's magnetic field deflects these particles from the sun.

2. The hot, plastic-like layer of the mantle.
3. The boundary between the crust and mantle.
4. The vibration of the Earth caused by volcanic activity or rock movement.
6. The core's main ingredient.
7. A giant supercontinent that scientists speculate existed millions of years ago.
8. Seismic waves can be detected with these instruments.
11. The point on the Earth's surface directly above an earthquake's focus.
12. The Earth's outermost layer.
13. The boundary between the outer core and inner core.