When they are cut off from the rest of the river
Maybe
Yes
Do meanders cause oxbow lakes?
No
Yes
The sides
The bottom
Will water flowing over gentle slopes erode more of the sides of their channels or the bottom?
Maybe
No. (They form from slow moving water.)
Faster water forms curves
Yes
They are formed by slow water
Are large curves formed in streams when water is moving quickly?
True
False
True or false. Very fast moving water causes deposition.
Meanders and floodplains
Erosion and deposition
Slow moving streams create different types of features than mountain streams, Slow moving water erodes the sides of their channels more than the bottom
River water flowing over gentle slopes, forming of meanders
What are the two processes that form large curves in streams?
Maybe
Yes
Does fast moving water cause erosion more quickly than slow moving water?
True
False
True or false. Meanders are large curves in a slow moving stream.
When water flows over gentle slopes
When sediment is dropped off
Water is moving slowly enough, the sediment being carried may settle out. This is when deposition occurs
When water is moving slowly enough that the sediment settles out
When sediment is moved
When does deposition occur?
Fast moving streams
Slow moving streams
Meander
Slow moving water
What type of stream can create deposition?
No. (Rivers flowing over gentle slopes move much more slowly than mountain streams.)
They flow more slowly
They flow at the same speed
No
Yes
They flow faster
They move slower
They move faster
Do mountain streams flow more slowly than rivers flowing over gentle slopes?
Stream
Bank of a river
Meander
Floodplain
Flood plain
What is the flat area on both sides of a river?
A floodplain
Meander
Plateau
What is the broad, flat area on both sides of a river called?
Rivers flowing over gentle slopes move more slowly. They move much more slowly than a mountain stream. These slow moving streams create different types of features than mountain streams. Slow moving water erodes the sides of their channels more than the bottom. Also, large curves in the stream form. These curves are called meanders. Meanders are caused by erosion and deposition. Remember, faster moving water causes erosion more quickly. Slower moving water erodes material more slowly. If water is moving slowly enough, the sediment being carried may settle out. This settling out, or dropping off, of sediment is deposition. The curves are called meanders because they slowly wander over the land. As meanders erode from side to side, they create a floodplain. This is a broad, flat area on both sides of a river. Eventually, a meander may become cut off from the rest of the river. This forms an oxbow lake. 