science 3-5
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15 terms
Terms | Definitions |
|---|---|
 artesian well | A well in which water rises because of pressure within the aquifer. |
| geyser | A type of hot spring in which the water is under pressure and bursts periodically into the air |
| irrigation | The process of SUPPLYING WATER to areas of land to make them suitable for GROWING CROPS |
| conservation | the preservation and careful management of the environment and of natural resources |
| water pollution | The addition of any substancethat has a negative affect on water or the living things that depend on the water. |
| polluntants | The substance that causes water pollution. |
| point source | A specific source of pollution that can be identified, such as a pipe. |
| nonpoint source | A widely spread source of pollution that is difficult to link to a specific point of origin. |
| water quality | a measurement of the substances in water besides water molecules |
| concentration | The amount of one material in a certain volume of another material |
| pH | a measure of how acidic or basic a solution is on a scale of 0-14 |
| hardness | the level of the minerals calcium and magnesium in water |
| coliform | bacteria found in human and animal waste |
| filtration | the process whereby fluids pass through a filter or a filtering medium |
| coagulation | The process by which particles in a liquid clump together; a step in the water treatment process. |
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