Chapter+2+Terms

Sentence: Titanic sanked because of glaciers.
__Continental Drift__ – This is the theory of the earth’s continents and how they use to be connected, and how their moving still today. Sentence: The Continental Drift, is something many people still argue on today. __Plate Tectonics__ – This refers to all the processes of the Earth’s physical features, Scientists infer that planets have to do with it. Sentence: Plate Tectonics are very important to Scientists study with Earth physical features. __Magma__ – The molten rock that is pushed up from the spread of the mantle of the earth. Sentence: Whenever you see magma, you should be careful, its very hot rock. __Subduction__ – Is a process which the sea plate dives beneath the lighter continental plate. Sentence: Subduction can very greatly change the structure of any land mass. __Accretion__ – These are pieces of the earth’s crust that come together slowly as the plate slides under the continental plate. You would be in alot of trouble if you were in contact of a Accretion. __Spreading__ – This is a rift, or a crack that allows magma from the Earth to come up between the plates. You better hope your not in your house, when Spreading can occur.

//** Hydrosphere- **// The watery areas of the earth, including oceans, lakes, rivers, and other bodies of water. Sentence- Some maps just show the hydrosphere of the earth.

//** Lithosphere- ** Surface land areas of the earth’s crust, including continents and ocean basins. // Sentence- Special types of maps show the Lithosphere of the earth.

//** Biosphere- **// The part of the Earth where life exists. Sentence- We live in the Biosphere of the Earth.

//** Continental Shelf- **// The part of a continent that extends underwater. Sentence- Some rocks have a Continental shelf if they are by a body of water.

//** Mariana Trench- **// A narrow, underwater canyon about 35,827 feet deep. Sentence- A lot of people would like to go and see the Mariana Trench.

//** Mantle- **// Thick middle layer of the Earth’s interior structure, consisting of dense, hot rock. Sentence- Volcanoes have a Mantle of volcanic rock.