3.1 Introduction 3.1

• Aardrijkskunde
• Middelbare school
• vwo
• Leerjaar 2

Chapter 3.1: Water

What are the 2 names you can give for this water system?

1. Hydrological cycle
2. Cycle of evaporation
3. Water cycle
4. Three steps cycle

What are the 2 names you can give to the never ending journey of water on earth

Short cycle

Long cycle

What cycle is the most important one for people?

What. cycle is the most important one for people. Long or short. Explain your answer

Fresh water only provides 0.3% that we can use

GROUNDWATER

often to deep

Ice and snow

... not used 

Only water from rivers, lakes, swamps is easy to have access to

What is the main activity that water is used for world wide?

1. agriculture
2. households
3. industry
4. transport

Oppervlaktewater: water wat je kunt zien

Grondwater: water dat niet meer zichtbaar is omdat het in de bodem en in gesteente getrokken is.

Fresh water is to be divided in:

Fresh water is also found in solid form

Landijs: ijsmassa's die liggen op het vaste land.

Gletsjers

What are the 3 sources of water for a country

1. precipitation
2. rivers (from neighbours)
3. sea water
4. groundwater

Many countries don't have the perfect water balance. Why not? Give several possible reasons for drought

Dry areas

Problems for always having enough

• precipitation in sparsely populated areas
• precipitation only in a short time
• precipitation in winter, which is not the growing season 
• water can be overused 

Do assignments 3.1