Bell ringer 3- 5/13/2010
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26 terms
Terms | Definitions |
|---|---|
 convection current | a circulatory motion in a fluid due to convection, called a convection cell |
| convergence | the coming together of air currents at Earth's surface and at the top of the troposphere OR direct collision of lithosperic plates in the plate tectonic theory |
| convergent plate boundary | boundary between two colliding plates, often associated with mountain building ocean trenches and volcanic islands |
| coordinate system | a grid or system of lines for determining loaction of a point on a surface such as latitude and longitude of a point on Earth |
| core | the cneter part of EArth below the mantle thought to be composed of iron and nickel, inner part is a solid and the outer part is a liquid |
| Coriolis effect | the deflection of all moving particles of matter at the Earth's surface to the right in the N. Hemisphere and the left in the Southern Hemisphere |
| correlation | in geology, the process of showing that rocks or geologic events from different places are the same or similar in age |
| crust | the outermost portion of Earth's solid lithospere, separated from the upper most mantle and lower lithospere by the thin Moho interface |
| crystal | the individual mineral grains of may rocks OR a solid with a defintie internal sturcture of atoms arranged in a characteristic, regular, repeating pattern |
| crystal shape | the outward 3-D shape or geometric shape of a mineral specimen that reflects the internal atomic structure also called crystal form |
| crystal structure | the pattern or arrangement of atoms that characterizes each mineral , also called atomic structure |
| cyclic change | an orderly change in the environment in which an event repeats itself with reference to time and space. |
| cyclone | a low pressure portion of the troposphere that has air moving towards its center, usually rotates clockwise in the N. Hemisphere,include hurricanes, tornadoes and cyclones, also called a low |
| crystalline | composed of intergrown or interconnected mineral crystals; having a specific arrangement of atoms |
| crystallization | a type of solidification in which molten rock (magma or lava) cools to form igneous rocks composed of mineral crystals |
| crystal shape | the outward 3D shape or geometric shape of a mineral specimen that relfects the internal atomic structure |
| crystal structure | the pattern or arrangement of atoms that characterizes each mineral |
| cyclic change | an orderly change in the environment in which an event repeats itself with reference to time and space; the opposite of random change |
| cyclone | a low-pressureportion of the troposhpere that has air moving towards its center; usually rotates counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere; includes hurricanes, torenadoes, and mid-latitude cyclones; also called a low |
| cyclonic storm | a large type of low-pressure storm system formed in the mid-lattitudes; also called mit-latitude cyclones |
| daily motion | the apparent, usually east to west movement ofa celestial objects inthe sky caused by Earth's west to east rotation; objects appear to move in circular or arc-shaped paths |
| day | the amount of time it takes a planed or other celestial object to make one rotation |
| deforestation | the cutting down of trees and other plants in a forest |
| delta | the deposit of sediment at the mouth or end of a river or stream where it flows into a quiet body of water such as a lake or ocean |
| density | te concentration of matter in an object; the ration of the mass of an object to its volume- mass per each unit of volume |
| deposition | the process by which sediments are released, dropped, or settled from erosional systems; includes the precipitation of dissolved minerals in the formation of chemical sedimentary rocks; also called sedimentation |
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