| A | B |
|---|
| water cycle | the moverment of water between the atmosphere and the earth's surface |
| evaporation | changing form a liquid to a gas |
| condensation | changing from a gas to a liquid |
| precipitation | moisture that falls to the earth from the atmosphere |
| transpiration | process in which water moves from the inside of leaves to the outside |
| infiltration | the seepage of water into soil or rock |
| sublimation | a change directly from the solid to the gaseous state without becoming liquid |
| collection (as part of water cycle) | accumulation of water in lakes, rivers and streams |
| groundwater | water that sinks into the ground |
| drainage basin or watershed | a land area that drains into a river swamp, march, ocean |
| spring | a place where groundwater flows naturally out of the ground |
| sinkhole | a funnel-shaped depression that results when the roof of a cave collapses |
| geyser | a place where hot groundwater and steam blast into the air |
| runoff | water that runs over the earth's surface and flows into streams |
| reservoir | artificial lake created by placing a dam across a river |
| tributary | river that joins another river of equal or greater size |
| divide | ridge that separates drainage basins |
| porus | containing many spaces through which air and water can move |
| Turbidity | A measure of how much light passes through water |
| Disolved oxygen | important water quality paramter with state standard of 6ppm |
| nitrogen and phosphates | two groups of nutriants that promote plant growth in streams and lakes |
| pH | A measure of how acid or alkiline water is |
| point source polution | you can point to the source of polution, such as a pipe or smokestack |
| non point source polution | polution carried to body of water or ground water by run off |
| Greenfield Lake water shed | Watershed our school is in |
| Largest watershed in Wilmington | Smith Creek watershed |
| Largest watershed in Wilmington that drains into the Atlantic Ocean | Hewlets Creek wateshed |
| Wilmington wateshed that lies south of Greenfield lake watershed and Hewlets creek watershed | Barnards Creek watershed |
| Key characteristic of temperature in cold water lakes | water quality paramater that is highly stratified in cold water lakes |
| Biochemical Oxygen Demand | Measure of how much oxygen is being used up by microorganisms |
| Solution | Mixture of two or more things in which the solute is held to the solvent by week chemical bonds |
| Solvent | Part of solution there is the most of |
| Solute | Part of solution in smaller quantity |
| Coliform bacteria | Bacteria found in poop of warm blooded animals |
| Source of phosphates that is not also a source for nitrates | Detergents and strong soaps |
