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SSvocabb
| Question | Answer |
|---|---|
| core | earths center, where pressures and temps are very high |
| mantle | section of earths interior that lies above the outer core and has the most mass |
| magma | liquid rock within earth |
| plate tectonics | the theory that Earth's crust is divided into rigid plates that slowly move across the upper mantle |
| continental drift | process by which earth's plates slowly move across the upper mantle |
| rift valleys | places on earths surface where the crust stretches until it breaks |
| abyssal plains | areas of the ocean floor where rocks graudally sink because they have no supporting heat below them, the worlds flattest and smoothest regions |
| continental shelves | where continental surfaces extend under the shallow oceans water around the continent |
| faults | plates where rock masses have been broken apart and are moving away from each other |
| weathering | process by which rocks break and decay over time |
| sediment | small particles of weathered rock |
| erosion | movement of surface material from one location to another by wind, water, and ice |
| glaciers | thick masses of ice, including great ice sheets and bodies of ice that flow down mountains like slow rivers |
| plateau | an elevated flat area that rises sharply above nearby land on at least one side |
| alluvial fan | fan shaped deposit of mud and gravel often found along the bases of mountains |
| delta | accumulation of sediment at the mouth of a river |
| desalinization | process of removing salt from ocean water |
| hydrologic cycle | movement of water through the hydrosphere |
| trubutary | any smaller stream or river that flows into another stream or river |
| drainage basin | a region drained by its river and its tributaries |
| estauries | semi enclosed bodies of water, sea water, and fresh water where a river meets an inlet of the sea |
| wetlands | landscapes that are covered with water for at least one part of the year |
| humus | broken down plant and animal matter |
| soil exhaustion | condition where soil has lost nutrients and becomes nearly useless for farming |
| reforestation | replanting of a forest |
| acid rain | polluted rain that can damage trees and kill fish in lakes |
| fossil fuel | energy resources formed from the remains of ancient plants and animals including coal, natural gas and pertroleum |
| petrochemical | certain products made from oil |
| hydrologic power | electricity produced by moving water |
| geothermal energy | heat of earths interior |
Created by:
brittney143
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