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Nov 13 Objectives
Science Objective for November 13
Question | Answer |
---|---|
Sediment | Solid pieces of rock minerals or remains of plants or animals that range in size and can be transported by erosion. |
Deposition | process that occurs when sediment being carried by an erosional agent is over come by gravity and settles |
Meander | the bend or curve in a river as water flows along the path of least resistance. |
Runofff | Rain that is not absorbed by the ground instead flows downhill to lowlying areas and into streams and rivers |
Groundwater | water below earths surface that fills empty spaces in rock |
Bedrock | the solid layer of rock in a soil profile that lies beneath loose surface material. |
Erosion | The process that moves transports and deposits loosended rock particles. |
Explain how erosion is different from weathering | Weatherine creates sediment erosion carries it away. |
Describe how each of the agents of erosion work to move... | |
Surface Water | water can loosen and carry sediment away. streams, rain, rivers |
Groundwater | can become an acidic solution that dissolves and carries away underground limestone. Creates underground caves |
Glaciers | erodes the land by picking up sediment. Creates Fjordes |
Waves | Weathers rocks over time carries sediment away. |
Wind | Erodes land, carries away sand- creates sand dunes. |
Relate how the agents of erosion also act as agents of weathering | they break down sediment and carry it away |
Karst Topography | an area of land where the subsurface bedrock often made of limestone or marble partially dissolves by acidic water |
Glaciers | A large mass of flowing ice |
Fjord | a u shaped valley eroded by a lacier and filled with sea water |
Deflation | the gradual removal of loose surface material by wind resulting in shallow depressions |
Dune | a hill or mound created by wind deposition of sand. |