Rivers Flashcards
What is the source?
The beginning of a river
What is the course?
The route of which a river takes
What is the confluence?
The point at which two rivers or streams join together
What is a tributary?
A stream or smaller river that flows into a larger stream or river
What is the mouth?
The point where a river comes to an end
What is a drainage basin?
The area of land drained by a river
What is the watershed?
The edge of highland surrounding a drainage basin. It marks the boundary between two drainage basins
What is the estuary?
The part of a river mouth that is tidal
What are the three stages of a river?
Upper
Middle
Lower
What is hydraulic action?
The force of moving water
What is abrasion?
Small stones carried by the river wear away the banks and bed of a river
What is attrition?
The small stones are worn down as they hit each other
What is solution?
Rocks such as limestone are dissolved by acids in the water
What is traction?
The rolling of rocks
What is saltation?
Rocks bouncing
