Unit 5.1 - Upper Geo

The river Thames is the ________ river in the UK.

• longest

• second longest

• third longest

• fourth longest

The start of a river is called the _______.

• watershed

• confluence

• tributary

• source

Where is the start of the river Thames?

• London

• the North Sea

• the Cotswolds

• Oxford

What length is the river Thames?

• 354 km

• 346 km

• 298 km

• 250 km

Why can boats and barges not use the Thames between the Thames Head and Lechlade?

• It is bad for the fish farms.

• The water moves too fast.

• The water is not deep enough.

• It is a nature reserve.

Why does a river generally hold more water further from the source?

• more tributaries have joined it

• the flow exceeds the tidal limit

• it is nearer to the sea

• it rains more

What is a tributary?

• the point where 2 river meet

• the dividing line between river basins

• the place where a river starts

• a smaller river that joins a larger one

What happens in a tidal river?

• fish leave it once a month

• the water level in the river rises and falls with the sea

• it flows into a lake and not the sea

• the water level remains steady in heavy rain

Why is the Thames in London a bit salty?

• the local farmers use it as a fertilizer

• the river basin is below sea level

• it is waste from food production factories

• the Thames is a tidal river

Where is the limit of the tidal Thames?

• Reading

• Teddington

• Maidenhead

• Oxford