sciene thing

4. A body of contaminated groundwater or stream flowing from a specific source.
5. Water on land that seeps (infiltrates) into the ground. Groundwater also flows downhill
7. Not allowing fluids to pass through a material.
8. Compacted layers of clay, silt or rock that act as a barrier for groundwater to flow underground. These earth materials also limit and direct the surface water which seeps down and replenishes aquifers.
11. Groundwater can be extracted from underground layers of water-bearing permeable rock, rock fractures or gravel, sand, or silt.

1. In a solution, a measure of the amount of dissolved substance contained in a specific volume of liquid. (Ex.) The salt water concentration is 10% (10 grams salt/100 mls. water).
2. The ease with which a fluid (air or liquid) can pass through a porous material.
3. To make a substances unfit for use by adding something harmful or unpleasant to it. (Ex.) The water is contaminated with chemicals.
6. A geological formation with holes, or small pore spaces within porous materials such as rocks, soil etc. that can hold water or permit water movement.
8. A saturated, low permeability earth material can restrict the movement of groundwater and/or it may be able to store groundwater.
9. The saturated zone of the aquifer (under ground water table) that interfaces with earth's surface. This saturated zone is seasonal.
10. A substance used for destroying insects or other organisms harmful to cultivated plants or to animals.
11. a geological formation which has structures or textures that hold water or permit appreciate water movement through them.