science watershed Word Scramble
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Question | Answer |
tributary | a stream that flows into a larger stream |
Watershed | The land area that supplies water to a river system |
eutrophication | the process by which nutrients in a lake build up over time causing an increase in the growth of algae |
wetland | an area of land that is covered with a shallow layer of water during some or all of the year |
Water quality | The degree of purity of water determined by measuring the substance in the water besides water molecules |
water pollution | The addition of any substance that has a negative effect on water or the living things that depend on water |
Point source | a specific source of pollution that can be identified such as a pipe |
nonpoint source | a widely spread source of pollution such as road runoff that is difficult to link to a specific point of origin |
Pesticide | A chemical intended to kill insects and other organisms that damage crop |
Estuary | A coastal inlet or bay where fresh water mixes with salty ocean water |
Sediment | Small solid particles of material from rock or organisms which are moved by water or wind resulting in erosion and deposition |
conservation | The process using a resource wisely so it will not be used up |
recycling | The process of reclaiming and reusing raw material |
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