Ponds, Lakes, Rivers, Streams, etc.
The difference between a pond and a lake is that lakes are larger, but not standardized. That said, if light does not reach the bottom, then it is a lake. Ponds have rooted plants and vary more in temperature.
How are rivers "born?"
A river is "born" when the water table reaches the surface. This could be the result of a spring as we learned about in the last unit or from erosion of a gully into the water table.
Water carries sediment. This sediment has some interesting effects. First, let's see how it is carried:
The major factor controlling how much sediment is in the river is the river's speed. Other factors?
As a river "ages", it changes:
Or, in words:
The features of a river:
Features to know:
Floodplain, Levee, Channel, Delta, Meander, Oxbow, Watershed, Divide