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Science ch. 3

Science Ch. 3 "Managing Earth's Changes" 5th Grade

QuestionAnswer
barrier island An island near the shore formed by currents that deposit sediments. Georgia's Tybee and Jeckyll Islands are examples.
beach nourishment Dumping or replacing sand on an eroded beach.
contour plowing Plowing in curved rows following the shape of the land, preventing erosion.
dam A wall across a river or other waterway that is designed to hold back waters. One of these in Buford creates Lake Lanier.
dredging Digging to deepen or widen a river, bay, or harbor.
flood An event in which water flows over land that is usually dry.
floodway A path or channel for flood waters, usually prepared ahead of time.
jetty A long narrow wall that juts from the shoreline into the ocean.
levee A wall along the banks of a river, designed to prevent or lessen flooding.
reservoir An artificial lake, used to hold water for future use or to control flooding. Georgia's Lakes Lanier and Hartwell are examples.
sea wall A tall wall built along the inside edge of a beach in order to control erosion.
soil A natural resource made of minerals, small rocks, water, gases, and organic matter: critical for growing crops; formed through weathering.
storm drain A series of pipes or channels designed to carry away storm waters.
subsoil A layer beneath the topsoil, not as rich as topsoil.
terrace farming The practice of raising crops on leveled sections on a hillside or mountainside.
topsoil The uppermost layer of soil; rich in humus and nutrients.
Created by: briansegool
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