River 1
features
Source - where river begins
( mountain)
Mouth 👄- where go river enters a lake or sea 🌊
Tributaries - a small river joining the main or large river
Course- the route taken by the river joins a large one
Estuary- the part of the river that is tidal
Drainage basins - the area of land that is drained
Watershed - the line dividing the waters of the river and it’s tributaries
stages of a river
1
youthful stage
River is small steep slope narrow and deep , steep sides and water 💦 moves fast
2
mature stage
River is bigger not as steep wider floor bed , gently sloping sides and river moves slow
3
oldage stage
River is much bigger and is flat no slope with wide flat floor and river moves very slow
the works of the river
River has three important jobs
1 erode
2 transport
3 deposit
River load - the materials transported by the river is called the load
Erosion- The wearing away of rocks and that transportation Shen of rock particles e.g. Rock, sea 🌊, ice ,wind 🌬
1 River erosion
River erodes it’s bed and the bank by
Hydraulic action -which is carried out for the force of flowing water in the river
abrasion - never uses it to load to a road the beds and banks
Attrition- therivers load is worn down when the pieces Clyde so that the stones are smoother and made smaller
solution - some rocks such as limestone or dissolved in the river from acid
2 river transportation
A river transports its load downstream in a number of ways
1 rolling ( traction) of large rocks along the bed of the river
2 bouncing (saltation) of stones and pebbles along the bed of the river
3 suspension is light materials eg silt and clay are transported by being suspended in the river
4 solution is dissolved materials are carried in solution by the river
3 river deposition
The river drops or deposits it’s load when
- it loses speed and has less energy
- it’s volume decreases
- it enters flat or genital landscapes
- it flows into a sea 🌊 or lake