3.2 Water in balance

Today
WATER IN BALANCE
  • Present your summaries (10 min.)
  • Explanation 3.2 (10 min.)
  • Documentary (15 min.)
  • Adjust your summary and work on topography (20 min.)
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Slide 1: Slide
AardrijkskundeMiddelbare schoolvwoLeerjaar 2

This lesson contains 11 slides, with text slides.

time-iconLesson duration is: 60 min

Items in this lesson

Today
WATER IN BALANCE
  • Present your summaries (10 min.)
  • Explanation 3.2 (10 min.)
  • Documentary (15 min.)
  • Adjust your summary and work on topography (20 min.)

Slide 1 - Slide

Learning objectives 3.1 + 3.2
  • You can explain how the short and long hydrological cycles work.
  • You can tell in which forms water can be stored.
  • You can explain why a lot of water is unsuitable or unreachable for humans.

  • You know the meaning of all terms associated with the water balance and sustainable water management.
  • You understand how a water balance is put together.
  • You can explain the importance of sustainable water management.

Slide 2 - Slide

The journey of water: Water cycle
Short cycle: Water stays in more or less the same location.
Long cycle: Water goes on a big journey.

Forms of water:
  • Liquid (like rain)
  • Solid (like ice)
  • Gas (like water vapour)

Slide 3 - Slide

Distribution of water
TERMS
Fresh water versus salt water.
Surface water versus groundwater.

#You can tell in which forms water can be stored.
#You can explain why a lot of water is unsuitable or unreachable for humans.



Slide 4 - Slide

Water balance: What comes in and what goes out?
Useful precipitation
Precipitation - Evaporation
Fossil water?
Water that is stored deep in the subsurface in a aquifer.

Slide 5 - Slide

Assignment 2b.
Under which two conditions can such an underground water
supply form? Note the correct answers.
A with an impervious layer in the subsurface with a porous
layer beneath it
B with sufficient precipitation
C with a porous layer in the substrate with a second porous
layer underneath
D with a porous layer in the substrate with an impermeable
layer beneath it
E with sufficient useful precipitation now or in the past.
F with an impermeable layer in the subsurface with a
second impervious layer beneath it

Slide 6 - Slide

Renewable or not?
3c + 3d

Slide 7 - Slide

Slide 8 - Slide

Slide 9 - Link

Slide 10 - Slide

Get to work
Adjust your summary of 3.2 if needed.

Make Topography World: cities and waterways at the end of the workbook.
Skip Regions and mountain ranges.

Done? Start on your summary of 3.3.

Slide 11 - Slide