Aqa Geography Gcse Water On The Land Revision

The start or beginning of a river.

The point where the river comes to an end, usually when entering the sea.

The edge of highland surrounding a drainage basin. It marks the boundary between two drainage basins.

A smaller stream or river which joins a larger stream or river.

The point at which two rivers or streams join.

The area of land drained by a river and its tributaries.

Consists of inputs, outputs, stores and flows.

Loss of water directly into the atmosphere.

Process where plants take up water through the roots and later release it through the leaves.

When water flows away over the top of the land.

When water sinks into the soil.

The movement of water downward into the underlying rock.

The movement of water through the rock parallel to the surface.

The movement of water through the soil parallel to the surface.

When rain falls on vegetation which shelters the ground beneath.

The wearing away of rock and soil found along the river bed and banks as well as the breaking down of rock and other debris being carried downstream by the river.

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

The force of the water of the river against the banks can cause air to be compressed and then released in cracks and crevices. This weakens the banks and gradually wears them away.

Carbon dioxide that is dissolved in the river dissolves rock chemically.

Rocks carried along by the river wear down the river bed and banks.

The movement of material in the river, including sediment, along the river.

Large boulders and rocks are rolled along the river bed.

Small pebbles and stones are bounced along the river bed.

Fine, light material is carried along in the water.

Minerals that are dissolved in the river are carried along.

When a river drops some of the material it is carrying as a result of losing energy.

Rock that does not allow water to pass through it.

•A type of permeable rock.

• Rock that allows water to pass through it via vertical joints.

• An example is limestone.

• A type of permeable rock.

• Rock that allows water to soak into it via spaces between the particles.

• An example is chalk.

Constructing something to hold water out or keep it back - controlling nature.

The use of ecological principles and practices to reduce the impacts of flooding - working with nature.

• Located in Northumberland.

• Cost £167 million to make.

• The reservoir has always been≥90% full.

• Over 1 million trees were cut down to make room for the lake.

• Over 1 million trees were cut down to make room for the lake.

• The hydroelectric power scheme has a 6 MW capacity.

• 12 km long and can hold 188,000,000,000 litres of water.

• Most of the country is just 1 m above sea level.

• The country floods every year. It was particularly bad in July - September of 2004.

• On the 13th September, Dhaka received 350 mm of rainfall in 24 hours.

• 760 people were killed and 8.5 million were made homeless.

• 500,000 tonnes of rice destroyed.

• 60% of the country was underwater.

• The floods caused around $2.5 billion of damage in roads and industry.

• A 5-year loan was given by the World Bank.

• Plans for 5000 emergency shelters were made.

• Huge amounts of rain for 5 hours, with a peak of 24 mm in 15 minutes.

• 2 million tonnes of water flowed through the town in 24 hours.

• 90% of Boscastle's income is from tourism.

• £15 million of damage.

• 6 buildings were destroyed/demolished.

• 150 people were rescued.

• The main car park was made 1 m higher.