Layers of Earth

3. the movement of thermal energy through liquids and gases
7. a layer of molten (melted) iron and nickel that surrounds the inner core
9. The shaking that results from the movement of rock beneath Earth's surface.
10. a light colored igneous rock having large crystals; makes up most of Earth's crust
11. the transfer of thermal energy by direct contact between objects
12. force exerted on a surface divided by the total area over which the force is exerted
13. a dense sphere of solid iron and nickel at the center of the Earth
14. the thin layer of rock that forms Earth's outer surface
16. the soft layer of the mantle, on which the lithosphere floats
17. The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations.
18. a dark, dense igneous rock with a fine texture, found in the oceanic crust

1. a rigid layer made up of the upper part of the mantle and the crust
2. A trace of an ancient organism that has been preserved in rock.
4. the amount of mass of a substance in a given volume
5. A weak spot in the crust where magma has come to the surface.
6. thermal energy that travels in waves and can pass through empty space as well as some objects
8. the layer of hot rock (solid material) between the crust and the core
12. The name of the single landmass (super continent) that broke apart 200 million years ago and gave rise to today's
15. vibrations that travel through Earth carrying the energy released during an Earth quake