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NC 7th grade Weather
7th grade weather part 1
| Term | Definition |
|---|---|
| Jet stream | a narrow, variable band of very strong, predominantly westerly air currents encircling the globe several miles above the earth. There are typically two or three jet streams in each of the northern and southern hemispheres. |
| Convection | the movement caused within a fluid by the tendency of hotter and therefore less dense material to rise, and colder, denser material to sink under the influence of gravity, which consequently results in transfer of hea |
| Conduction | the process by which heat or electricity is directly transmitted through a substance when there is a difference of temperature or of electrical potential between adjoining regions, without movement of the material. |
| Radiation | energy in transit in the form of high speed particles and electromagnetic waves. |
| Climate | the weather conditions prevailing in an area in general or over a long period |
| Weather | the state of the atmosphere at a place and time as regards heat, dryness, sunshine, wind, rain, etc |
| Air quality | the degree to which the ambient air is pollution-free, assessed by measuring a number of indicators of pollution |
| Stewardship | the activity or job of protecting and being responsible for something |
| Monitor | observe and check the progress or quality of (something) over a period of time; keep under systematic review |
| EPA | Environmental Protection Agency - an independent federal agency established to coordinate programs aimed at reducing pollution and protecting the environment |
| Water cycle | the cycle of processes by which water circulates between the earth's oceans, atmosphere, and land, involving precipitation as rain and snow, drainage in streams and rivers, and return to the atmosphere by evaporation and transpiration |
| Precipitation | rain, snow, sleet, or hail that falls to the ground. |
| Evaporation | to change from a liquid into a ga |
| Condensation | the conversion of a vapor or gas to a liquid. |
| Transpiration | "Process by which water that is absorbed by plants, usually through the roots, is evaporated into the atmosphere from the plant surface, such as leaf pores." |
| Run-off | Rainfall not absorbed by soil. |
Created by:
clupton
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