life science nonliving environment chap. 25
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Created by:
ruppd on February 8, 2008
Classes:
Seventh Grade, MCP Life Science 2012
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14 terms
Terms | Definitions |
|---|---|
 Abiotic | nonliving, physical features of the enviorment, including air, water, sunlight, soil, and climate. |
| Atmosphere | air surounding Earth; is made up of gases, including 78% nitrogen, 21% oxygen, and 0.03% carbon dioxide |
| Biotic | features of the enviorments that are alive or were alive at some point in time. |
| Carbon Cycle | model describing how carbon molecules move between the living and nonliving world. |
| Chemosynthesis | process in which producers make energy rich nutrient molecules from chemicals. |
| Climate | average weather conditions of an area over time including wind, temperature, and rainfall or other types of percipitation such as snow or sleet. |
| Condensation | process that takes place when a gas changes to a liquid. |
| Energy Pyramid | model that shows the amount of energy avalible at each feeding level in an ecosystem. |
| Evaporation | process that takes place when a liquid turns into a gas. |
| Food Web | model that shows the complex feeding relationships among organisms in a community. |
| Nitrogen Cycle | model describing how nitrogen moves from the atmosphere to the soil, to living organisms, and then back to the atmosphere. |
| Nitrogen Fixation | process in which some types of bacteria in the soil change nitrogen gas into a form of nitrogen that plants can use. |
| Soil | mixture of minerals and rock particles, remains of dead organisms, air, and water that forms the top layer of earth's crust and supports plant growth. |
| Water Cycle | model describing how water moves from Earth's surface to the atmosphere and back to the surface again through evaporation, condensation, and precipitation. |
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