Key facts about the river system:
*The point where a river begins is called the source. Where the river reaches the end of its journey is called the mouth.
*The area of land drained by a river and its tributaries is called the drainage basin.
*Tributaries are the small rivers that join the main river channel. The point at which two rivers meet is called a confluence. The greater the number of tributaries, the denser the drainage basin.
*The boundary between two drainage basins is known as the watershed. A watershed is usually a ridge of highland.
Do you think you could draw a river system with the following features and label them? Try to plot these features into your diagram:
Watershed, source of the river, main river channel, tributaries, confluence, mouth of river.
Also, try these websites to further your knowledge on river systems:
GCSE: http://www.bbc.co.uk/schools/gcsebitesize/geography/riverswater/
A Level: http://www.s-cool.co.uk/alevel/geography/river-processes-and-management.html
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