Rivers

What is the hydrological cycle?

The hydrological cycle

• What do you already know?

• Listen to the song....see if it jogs your memory

Geog.GCSE diagram

• Geog.GCSE p74• Q1: make a large neat sketch of the

simple diagram in the box and complete with labels

• Q3: match up the keywords + meanings, copy in to your book

Hydrological cycle reminder

• Watch the Evian advert

• Jot down the names of processes that happen during the clip, e.g. condensation

Memory task

• In pairs/groups, you will come up 1 at a time to look at a diagram

• You will have 20 seconds to look and must remember what you can

• Then go back to your group, and describe what you remember

• As a group, produce a large copy of the diagram on paper – as detailed as possible

Atmosphere12.7

Vegetation25

Rivers and lakes178Soil storage

40

Groundwater flow15’300

Ice stores26’350

Hydro system• The hydrological cycle is a closed system• Water is constantly cycled around the planet, we

never lose or gain water on Earth• It is made up of inputs, stores, flows and outputs

of water (water may be in different forms, e.g. Solid, liquid or gas)

STORESe.g. Ice sheet, lakes, rivers,

seas

INPUTSe.g. Water

in atmosphere

OUTPUTSe.g.

precipitation

FLOWSe.g.

precipitation

FLOWSe.g.

Evaporation,

surface flow

Hydro song/poem

• Using the textbook and all the keywords, write a song or poem to describe the hydro cycle

Amazon

• Watch the film clip

• Take notes on the source (start) of the River Amazon

• Describe the landscape, landforms and how the river + the land is used.

Exam Qs: Copy the Q + your answer down

Q) Explain why the hydrological cycle is a closed system [2marks]

Q) Describe and explain how water is returned to the atmosphere [3marks]

ICT extension

• Room 47

• Use the internet to research how deforestation affects the hydrological system

• What difference can it make?