CH1.2 water and waterbalance

• Geography
• Middelbare school
• havo, vwo
• Leerjaar 3

Welcome

Explanation part 2

Self study ( possibility topo)

Answering learning goals

Intro 1.3

Learning goals

– You know what households, industry and agriculture use water for.

– You understand the difference between direct and indirect water consumption.

– You understand the water balance model.

– You understand why countries export and import water directly and indirectly.

– You understand that water consumption can result in desertification, pollution and salinisation.

– You understand how salinisation can be tackled by drainage.

Where does water come from

Aquifers Libia

Water is pumped from aquifers.

Then brought to the bigger cities trough pipes.

waterfootprint.org

Why would the water be transported deep underground and in thick pipes?

How do global warming and population growth threathen the aquifers and water balance?

Inefficiënt way of using water.

Desertification

Salinisation

If water evaporates before being used by soil it will leave behind chalk and salt.

Land becomes infertile.

Furthers desertification 

How can drainage (afwatering) help stop salinisation and desertification?

Self Study

Read	1.2 again
Make	Finish learning goals and 1.2
How	Alone!!!
Time	15
Done?	Read 1.3
Homework	1.2 is done next lesson
atlas
skip

Tijdens deze fase van de les controleer je of leerlingen jouw instructie hebben begrepen d.m.v. een begeleide oefening.

Learning goals

– You know what households, industry and agriculture use water for.

– You understand the difference between direct and indirect water consumption.

– You understand the water balance model.

– You understand why countries export and import water directly and indirectly.

– You understand that water consumption can result in desertification, pollution and salinisation.

– You understand how salinisation can be tackled by drainage.