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Water Erosion

Dae Duenas, Stacey Tercero, & Rhea Colli

Scott Severino

on 8 January 2013

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Transcript of Water Erosion

Water Erosion by Dae Duenas, Stacey Tercero & Rhea Colli Sheet Erosion Waterfalls Water Speed vs Rate of Erosion/Run Off After millions of years the Grand Canyon has been carved out by the Colorado River Meanders are a loop like bend in the course of a mature river. There are 2 stages of sheet erosion A waterfall is a place where a river plunges vertically. Creation of the Grand Canyon and Tributaries One stage is that soil particles are knocked into the air by the rain drops' impact. The second stage, is that rain water moves loose particles down slopes. Meanders Runoff is remaining water that moves over Earth's surface. A waterfall forms when the river flows over a cliff composed of hard rock that does not erode easily, such as volcanic sill. River System Tributaries are streams or smaller rivers that flow into the main stream of a larger river Vocabulary Water Erosion: Water Erosion is the removal of material by water from the Earth's surface. particles: A piece, fragment; a tiny or very small portion. Rill A rill is a small stream or brook. They develop well in areas with heavy rainfall, especially upon weaker rocks, like volcanic ash. Water Speed vs Gradient The gradient is how steep a river's slope is. It is usually flat or down hill. So the steeper the gradient the faster the water will flow. Oxbow Lakes Sources http://www.mbgnet.net/fresh/lakes/oxbow.htm Oxbow is a crescent-shaped lake lying alongside a winding river. The Oxbow Lake is created over time as erosion and deposits of soil change the river's course. http://www.worldwaterfalldatabase.com/ http://encyclopedia2.thefreedictionary.com/River+System http://dictionary.reference.com/ http://www.britannica.com/ http://www.answers.com/ 1. The removal of material by water from the Earth's surface is called what? 2. What type of water erosion has two stages? answer: Water Erosion answer: Sheet Erosion A river system is a group of rivers flowing with and channels into a sea or lake It is made up of: Test Questions Notes The faster the water moves the more soil and particles it carries away.
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