Vocab 5 Geology

4. A dark, dense, igneous rock with a fine texture, found in oceanic crust
7. drift The hypothesis that the continents slowly move across Earth's surface.
8. contains the crust and top part of the mantle; these are the plates that move
11. crust the relatively thick part of the earth's crust that forms the large landmasses. It is generally older and more complex than the oceanic crust.
12. core the middle of Earth; the hottest layer
13. the study of Earth's physical features, processes, and history

1. crust thinner, more dense, younger crust making ocean floor
2. mostly solid bulk of the inside of Earth; it is between the crust and the core.
3. the top part of the mantle; contains convection currents
5. A usually light colored igneous rock that is found in continental crust
6. tectonics the theory that Earth's lithosphere is in constant motion.
7. Earth's outermost layer.
9. core the outer part of the middle of Earth; the only liquid layer
10. how much each layer of Earth is pushing on the others