River Severn

Primary Homework Help
The River Severn

A Key Stage 2 Resource for Rivers and Coasts

 
 
River Severn home
 
:This site uses cookies. See our Cookie Policy for information
 


spacer


The confluence of
The River Severn and Nant Tanllwyth

The Nant Tanilwyth stream joins the River Severn just before a bend in the river.


The Severn emerges from the right and Nant Tanllwyth from straight ahead.

The River Severn turns a corner here dropping some of its load on the inside of the bend.

image bend

The water on the inside of a corner moves slower and has less energy to carry its load - when the flow of the water is too slow - the load is deposited or dropped.

This is the process of deposition. The deposited material is called sediment.

image erosion

Erosion wears away the banks on the outside of a meander bend, to make a stream/river cliff. This is because the water current is strongest (fastest speed) on the outside of a bend.

Most of the erosion here happens after heavy rain

After a lot of rain, the power and force of the water crashes into the bank attacking, and wearing away the bank. This process is known as Hydraulic Action.

previous pagenext page

Key Vocabulary

Confluence
The point at which a tributary joins the main river.

Tributary
A small river / stream which joins the main river

Transportation
The movement of material eroded by a river (called the load) from one place to another.

Erosion
Erosion is the wearing away of the bottom  and sides of the rivers by the force of the water, and material carried by the water.

Hydraulic Action
This process involves the force of water against the bed and banks

 

 
spacer
     
back to the top
 
   

email© Copyright - please read
All the materials on these pages are free for homework and classroom use only. You may not redistribute, sell or place the content of this page on any other website or blog without written permission from the author Mandy Barrow.

©Copyright Mandy Barrow 2013
primaryhomeworkhelp.com

Follow me on Twitter @mbarrow

N10 4BB UK