Oxbow Lake

Here is a comic strip explaining Oxbow Lakes.

The types of River Erosion

There are 4 Types of River Erosion which are Hydraulic Action, Attrition, Abrasion and Solution.

Abrasion: Rocks carried by the river smash into the bank and the bed.


Attrition: Rocks being carried by the river smash together and break into smaller, smoother and rounder particles.


Hydraulic Action: The force of the river against the banks can cause air to be trapped in cracks and crevices. The pressure weakens the banks and gradually wears it away.

Solution: Soluble particles are dissolved into the river.

Waterfalls

Waterfalls are usually found near the source of a river. It forms when water falls on hard rock. When the water reaches soft rock, it erodes and over a long period of time, cuts into soft rock. This makes a cliff that water can topple. Over time, the soft rock gets worn away and eventually hard rock on it will give way to gravity. Over time, the waterfall will move upstream.A plunge pool is formed under the waterfall as the water falls hard on the river bed, eroding it.

Meanders

Meanders, or river bends are formed so the river can go through the easiest path it can, going around hills. When A river meanders. The flow is fastest on the outside, making it deeper. The slowest flow is on the inside, making it shallow. The fast flow will erode the side, forming a river cliff while the slow flow will deposit the materials in the water.

Here are the features of the Meanders put simply:

Outside of the bend:

Fastest Flow

Deepest side

River Cliff

Inside of the bend:

Slowest flow

Most shallow side

Small beach of materials