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Biogeochemical Cycle
| Term | Definition |
|---|---|
| Element Cycling | the breakdown of organic matter into its constituent elements for re-use in the ecosystem. |
| Chemical Elements | a chemical substance that cannot be broken down into other substances. |
| Molecule | a group of two or more atoms held together by chemical bonds. |
| Compound | a chemical substance composed of many identical molecules. |
| Biomolecules | an organic molecule that is important to the survival of organisms. |
| Reservoir | a man made lake for storing water. |
| Biosphere | anywhere on earth were life exists. |
| Hydrosphere | all of the water present on earth, whether on the surface, below the surface, and in the air. |
| Atmosphere | a layer or layers of gases surrounding a planet or other celestial body. |
| Law of Conservation of Mass | matter can neither be created or destroyed. |
| Geological Carbon Cycle | the process of storing carbon dioxide in underground geologic formations. |
| Biological Carbon Cycle | the rapid exchange of carbon among living things. |
| Mycorrhizae | a symbiotic association between a fungus and a plant. |
| Mycelia | root-like structures of fungi consisting of a mass of branching, thread-like hyphae. |
| Nitrogen Fixation | a chemical process by which molecular nitrogen is converted into ammonia. |
| Nitrification | a microbial process by which nitrogen compounds are sequentially oxidized to nitrite and nitrate. |
| Anaerobic | without the use of oxygen. |
| Denitrification | the microbial process of reducing nitrate and nitrite to gaseous forms of nitrogen. |
| Water Cycle | a biogeochemical cycle the describes the continuous movement of water on, above, and below the surface of the earth. |
| Evaporation | the conversion of a liquid into a gas. |
| Transpiration | the process of water movement through a plant and its evaporation from aerial parts such as leaves |
| Condensation | the conversion of a gas into a liquid. |
| Precipitation | water which has condensed in the atmosphere and fallen to the earth's surface. |
| Aquifiers | an underground layer of permeable, water-bearing rock which can contain or transmit ground water. |
| Runoff | precipitation that has fallen somewhere that it can't permeate. |
| Eutrophication | process by which a body of water or sections of one gradually become enriched with minerals and nutrients, particularly nitrogen and phosphorus. |
| Greenhouse Gases | gases that absorb and transmit radiant energy at thermal infrared wavelengths, producing the greenhouse effect. |
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