| A | B |
|---|
| base level | river cannot erode its bed deeper than the largest body of water it enters |
| bed load | heavier materials mover along he bottom of river |
| capacity | measure of the total amount of sediment a stream can carry |
| competence | a measure describing the maximum size of particles a stream can carry |
| delta | fan shaped deposite formed as river opens into a quiet /larger body of water |
| deposition | process by which materials fall to the bottom of stream/river |
| discharge | amount/volume of water passing a certain point in a given amount of time |
| divide | land that separates on drainage basin from another |
| drainage basin | all the land that drains into a river and its tributaries |
| flash flood | sudden water rise due to heavy long rains rapid melt of winter snow |
| flood | river overflows its banks |
| flood plain | part of river valley flow hat is covered by flood water |
| gradient | steepness of the slope of a stream/river |
| headward erosion | process by which land is worn away at the head of stream/gully |
| load | eroded rock and soil material transported down stream |
| meanders | river in flood plan tpically winds back and forth |
| natural levees | thick deposites that build u along the sides of a river |
| oxbow lake | curved body of water formed when deposites isolate a river meander |
| pothole | deep oval/circular basin formed as materials in a whirl pool grind bedrock |
| river system | a river and all its tributaries |
| stream piracy | headway erosion causes one river to wear through divide to capture another's head waters |
| suspension | water has muddy appearance because of particles being carried |
| tributary | stream that runs into another stream or river |
| watershed | all the land that drains into a river and its tributaries |
