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8th Grade - Science
Chapter 3 - Water
| Question | Answer |
|---|---|
| irrigation | the process of supplying water to areas of land, so they are suitable for growing crops |
| conservation | the practice of using less of a resource, so that it will not be used up |
| water quality | measurement of the substances in water besides water molecules |
| pH | affects quality (measurement of how acidic water is), the higher the pH, the more basic the water (7 is neutral, normal water), the lower the pH, the more acidic it is |
| hardness | the combined levels of calcium and magnesium |
| sewage | waste water and different kinds of waste |
| coagulation | a chemical is added to cause sticky globs (flocs) and particles stick to the flocs) |
| water pollution | is the addition of any substance that has a negative effect on water and living things that depended on water |
| nonpoint source | source of pollution that can't be tied to a specific point of origin |
| point source | a specific source of pollution that can be identified |
| acid rain | rain or another form of precipitation that is more acidic than normal |
| levee | sediment deposits that build up to keep the river in line |
| flash flood | a sudden violent flood that occurs within a few hours/minutes, of a storm |
| hydroelectric power | electricity produced by kinetic energy of water moving over a waterfall or through a dam |
| potential energy | energy stored and waiting to be used |
Created by:
rogersroost
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