River Severn
River changes downstream
River drainage basin key words
100

Two towns that the river Severn flows through

Tewkesbury

Shrewsbury

100

What happens to river depth as the river flows from source to mouth?

It gets deeper
100

Name of the point where two rivers meet

Confluence

200

The source of the River Severn

The Cambrian mountains (Plynlimon Hills)

200

Name two river characteristics, except depth, that increase with distance away from the source

Width 

Discharge (amount of water in the river)

Velocity (speed of river)


200

Name of a smaller river that flows into a larger one

Tributary

300

Name 2 tributaries of the River Severn

River Wye

River Stour

300

Name one characteristic that decreases with distance downstream

size of sediment

gradient (slope) of river 

300

Explain what is meant by the term watershed

The line across high land that separates two drainage basins

400

Explain what an Estuary is

Where the river and the sea mix together.

400

Explain what happens to lateral erosion in the lower course of the river

It increases as the river has more erosional power or energy

400

Explain one way that humans may change the drainage basin to increase flood risk

Cutting down trees, 

Blocking river flow

Building settlements in the flood plain