Plate Tectonic Project

4. A usually light-colored igneous rock that is found in continental crust.
5. The transfer of energy through space.
8. A layer of molten iron and nickel that surrounds the inner core of Earth.
9. A dense sphere of solid iron and nickel at the center of Earth.
13. The layer of hot, solid material between Earth’s crust and core.
15. techtonics The theory that pieces of Earth_tm)s lithosphere are in constant motion, driven by convection currents in the mantle.
16. The soft layer of the mantle on which the lithosphere floats.
20. The amount of mass in a given space; mass per unit volume.

1. A device that determines the distance of an object under water by recording echoes of sound waves.
2. The force exerted on a surface divided by the area over which the force is exerted.
3. The transfer of heat by movement of a fluid.
6. The layer of rock that forms Earth’s outer surface.
7. boundry A plate boundary where two plates move away from each other.
10. The surface of land broken up into parts.
11. boundry A plate boundary where two plates move toward each other.
12. A break in Earth’s crust where masses of rock slip past each other
14. A rigid layer made up of the uppermost part of the mantle and the crust.
17. The shaking that results from the movement of rock beneath Earth’s surface.
18. waves Vibrations that travel through Earth carrying the energy released during an earthquake.
19. A dark, dense, igneous rock with a fine texture, found in oceanic crust.