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Science
Chapter 3 Vocabulary
Term | Definition |
---|---|
barrier island | land formed over many years by the build up of sand and dirt just offshore of the mainland |
beach nourishment | dumping new sand onto eroding beaches to restore them |
contour plowing | plowing soil in curved rows that follow the shape of the land |
dam | a wall across a river that controls the flow of the river water |
dredging | the deepening or widening of a river or harbor |
flood | water flowing or collecting over land that is normally dry |
floodway | a prepared path for flood waters to flow over, often to prevent damage to communities |
jetty | thin, narrow wall built from the shoreline into the ocean |
levee | a wall along a river channel or other body of water that serves to prevent flooding by keeping water behind it |
reservoir | an artificial lake, often formed when water collects behind a dam |
sea wall | a tall wall built along the rear edge of a beach, designed to receive waves at high tide |
soil | natural resource made up of small rocks, minerals, water, gases, and organic matter |
storm drains | a system of pipes or channels that carry away storm water |
subsoil | layer of soil beneath the topsoil |
terrace farming | planting crops in level sections called terraces |
topsoil | uppermost layer of soil |