As they flow, rivers do 3 things:

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Presentation transcript:

As they flow, rivers do 3 things: Erosion Transport Deposition

Erosion and Weathering Corrasion/Abrasion Attrition Solution/Corrosion Hydraulic Action Physical (Freeze-Thaw) Biological Chemical

Weathering (outside the river) and erosion are (in the river) separate processes. But they do work together to erode rivers. http://www.bbc.co.uk/education/topics/zncqxnb

What is a Drainage Basin? The area of land drained by a river. http://www.youtube.com/watch?v=sfEi8CoPVgc

http://www.bbc.co.uk/education/clips/zn3qxnb

The Drainage Basin The area where the river gets it water from – all rain that falls in it will find its way to the river. The start of a river. A smaller river which feeds into the main river. An imaginary boundary dividing one drainage basin from another, usually a line of high land. Confluence Where the river meets the sea. The point where two rivers meet.