Gourt > Kids and Teens > School Time > Science > The Earth > Erosion (1)
Erosion is the displacement of solids (soil, mud, rock and other particles) by the agents of wind, water or ice, by downward or down-slope movement in response to gravity or by living organisms (in the case of bioerosion). Erosion is distinguished from weathering, which is the decomposition of rock and particles through processes where no movement is involved, although the two processes may be concurrent.
Erosion is an intrinsic natural process but in many places it is increased by human land use. Poor land use practices include deforestation, overgrazing, unmanaged construction activity and road or trail building. However, improved land use practices can limit erosion, using techniques like terrace-building and tree planting.
A certain amount of erosion is natural and, in fact, healthy for the ecosystem. For example, gravels continually move downstream in watercourses. Excessive erosion, however, can cause problems, such as receiving water sedimentation, ecosystem damage (including fish kills) and outright loss of soil.
More on [ Erosion ]
Environment :: Science
Weather :: The Atmosphere
RT @LindaBlog: New post, "Risk of Erosion for Grand Canyon â Wall Street Journal" - http://bit.ly/6vrvEH
GolfBallDriver (Golf Ball Driver) Sat, 05 Dec 2009 10:45:11 -0000
RT @LindaBlog: New post, "Risk of Erosion for Grand Canyon – Wall Street Journal" - http://bit.ly/6vrvEH
Public space is rapidly becoming "state space" http://ow.ly/IQqy Henry Porter on police and photography as latest civic society erosion
peterdcox (peterdcox) Sat, 05 Dec 2009 10:36:10 -0000
Public space is rapidly becoming "state space" http://ow.ly/IQqy Henry Porter on police and photography as latest civic society erosion
#Videocrux - People to fight the erosion in North Dakota http://www.videocrux.com/video/5100/People-to-fight-the-erosion-in-North-Dakota
videocrux (Videocrux) Sat, 05 Dec 2009 10:19:45 -0000
#Videocrux - People to fight the erosion in North Dakota http://www.videocrux.com/video/5100/People-to-fight-the-erosion-in-North-Dakota
Erosion Matters - IECANP News: A Rejuvenation? http://bit.ly/84QRkc
Earthyman (Howard Bright) Sat, 05 Dec 2009 09:45:11 -0000
Erosion Matters - IECANP News: A Rejuvenation? http://bit.ly/84QRkc
Meantime. » Flow, Stream and Erosion. - WEMAKECHANGES http://bit.ly/8GjIX7
Earthyman (Howard Bright) Sat, 05 Dec 2009 09:45:10 -0000
Meantime. » Flow, Stream and Erosion. - WEMAKECHANGES http://bit.ly/8GjIX7
at #paullcon, played teaching game of Erosion (4-player). Ran out of WX cards v quickly, slightly odd.
BenthamFish (Alan E Paull) Sat, 05 Dec 2009 09:38:25 -0000
at #paullcon, played teaching game of Erosion (4-player). Ran out of WX cards v quickly, slightly odd.
An Introduction to Water Erosion Control - Information on erosion control, and soil management techniques.
Meta Description: [ A pictorial guide to cost-effective ways of maintaining successful crop production while protecting soil and water quality ]
Causes of Beach Erosion - An introduction to what causes beach erosion, and how waves affect it.
Dirtmeister: Erosion - Investigate and report the effects of erosion.
Erosion Introduction - Tells how wind, water, glaciers, and gravity can cause erosion.
Erosion Introduction - A webquest to learn about erosion.
Kids Creek Restoration Project - Explains the work being done to reduce erosion in this creek.
Our Weathering/Erosion Experiment - A backyard experiment that you can do too, with the help of your parents.
Protecting Your Property From Erosion - Tells how you can help your parents prevent erosion around your house.
Sci-Kids: Composting Can Help Stop Damage of Erosion - Explains that the simple act of composting can stop erosion.
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Soil Erosion - An introduction to several types, including rill, gully, and tunnel erosion.
Soil Erosion - Information of soil erosion from the University of Western Cape, South Africa.
Soil Erosion Processes - A presentation which shows how erosion takes place.
Soil: Erosion and Conservation - How the soil is being damaged by rain, gravity, and wind. Plus why we should be concerned.
Meta Description: [ Erosion and conservation of soil. ]
Stream Bank Preservation - Tells how stream banks with no plant life around can increase erosion.
The Magic School Bus: Get Eroded - Experiment with clay and water to see the effects of erosion.
Weathering and Erosion - Information on mechanical and chemical weathering, and the effects it has.
Weathering, Erosion and Mass Movement - The effects of mechanical and chemical weathering, and how it affects the soil.
Meta Description: [ Description of Document ]
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