Terms : Hide Images
| 4890016499 | Aquifers | small spaces found within permeable layers of rock and sediment where water is found. | 0 | |
| 4890016500 | Unconfined aquifers | an aquifer that is simply porous rock covered by soil. | 1 | |
| 4890016501 | Confined aquifers | an aquifer surrounded by a layer of impermeable rock or clay. | 2 | |
| 4890016502 | Ground Water Image |  | 3 | |
| 4890016503 | Water table | the uppermost level at which the water in an area fully saturates the rock or soil. | 4 | |
| 4890016504 | Recharge | the input process of water percolating into an aquifer. | 5 | |
| 4890016505 | Lakes and moving water | water from an aquifer that naturally percolates up to the surface or from runoff. | 6 | |
| 4890016506 | Springs | water from an aquifer that naturally percolates up to the surface. | 7 | |
| 4890016507 | Summary of Part 1 |  | 8 | |
| 4890016508 | Cone of depression | an area where there is no longer any groundwater. |  | 9 |
| 4890016509 | Saltwater intrusion | when the pumping of fresh water out of a well is faster than the recharge. Near coastal areas this can cause salt water to infiltrate the aquifer. |  | 10 |
| 4890016510 | Oligotrophic Lakes | - low nutrient supply - low primary productivity - clear water, few plants & fish |  | 11 |
| 4890016511 | Eutrophic Lakes | - excess supply of nutrients - high primary productivity - murky water, large phytoplankton population |  | 12 |
| 4890016512 | Mesotrophic lakes | somewhere in between oligotrophic and eutrophic lakes | 13 | |
| 4890016513 | Picture of 3 Lakes |  | 14 | |
| 4890016514 | Levees | an enlarged bank built up on each side of the river. | 15 | |
| 4890016515 | Dikes | similar to a levee but built to prevent ocean waters from flooding adjacent land. | 16 | |
| 4890016516 | Dams | a barrier that runs across a river or stream to control the flow of water. | 17 | |
| 4890016517 | Reservoir | the area where water is stored behind the dam. | 18 | |
| 4890016518 | Dams and Reservoir Picture |  | 19 | |
| 4890016519 | Fish ladders | a set of stairs with water flowing over them that have been added to some dams to help migrating fish such as salmon get upstream. |  | 20 |
| 4890016520 | Aqueducts | canals or ditches used to carry water from one location to another. |  | 21 |
| 4890016521 | Desalination | removing the salt from salt water to obtain fresh water. Know 2 methods. |  | 22 |
| 4890016522 | Agriculture | the largest user of water around the world. | 23 | |
| 4890016523 | Irrigation techniques | Furrow irrigation- a trench that is flooded with water. Flood irrigation- the entire field is flooded with water. Spray irrigation- an apparatus that sprays water across a field. Drip irrigation- using a slow dripping hose that is laid on or buried beneath the soil. Hydroponic agriculture- crops grown in fertilized water and no soil. |  | 24 |
| 4890016524 | Industry | the second largest user of water worldwide. |  | 25 |
| 4890016525 | Households | the third largest user of water worldwide . |  | 26 |
| 4890016526 | Gray Water | water from showers, sinks, dishwasher stored, filtered spread on lawn/garden |  | 27 |
| 4890016527 | Water ownership | people can have rights to water use, but they do not own the water. | 28 | |
| 4890016528 | Water conservation | using techniques such as more efficient water fixtures, faucets and washing machines. | 29 | |
| 4890016529 | Xeriscaping | is landscaping and gardening that reduces or eliminates the need for supplemental water from irrigation. It is promoted in regions that do not have easily accessible, plentiful, or reliable supplies of fresh water, and is gaining acceptance in other areas as access to water becomes more limited. Xeriscaping may be an alternative to various types of traditional gardening. | 30 |
