Plates Tectonics

2. A method for detecting and locating objects submerged in water by echolocation.
3. Any remains, impression, or trace of a living thing of a former geologic age, as a skeleton, footprint, etc
4. The force exerted on a surface divided by the area over which the force is exerted.
7. The transfer of heat between two parts of a stationary system, caused by a temperature difference between the parts.
11. The layer of rock that form earth outer surface.
12. The layer of hot,solid material between earth's crust and core.
13. A dark dense,igneous rock with a fine texture, found in oceanic crust.
14. The soft layer of the mantle on which the lithosphere floats.
15. A layer of molten iron and nickle that surrounds the inner core of earth.
17. The hypothetical landmass that existed when all continents were joined, from about 300 to 200 million years ago.
18. A usually light-color igneous rock that is found in continental crust.
19. Waves Vibration that travels through earth carrying the energy released during an earthquake.

1. The transfer of heat by the circulation or movement of the heated parts of a liquid or gas.
2. An act or instance of subduction; subtraction or withdrawal.
5. A rigid layer made up of the uppermost part of the mantle and the crust.
6. Any of several seismically active submarine mountain ranges that extend through the Atlantic, Indian, and South Pacific oceans: each is hypothesized to be the locus of seafloor spreading
8. The state or quality of being dense; compactness; closely set or crowded condition. Stupidity; slow-wittedness; obtuseness.
9. In geology, the innermost part of a core, specif. a solid sphere in the middle of the fluid core such as the iron-nickel core of the Earth
10. Pertaining to the mainland of Europe, to Europeans, or to European customs and attitudes.
16. The complete process in which energy is emitted by one body, transmitted through an intervening medium or space, and absorbed by another body.