Lesson 4 - Irrigation

Unit 2 - Rivers
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AardrijkskundeMiddelbare schoolmavoLeerjaar 1

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Unit 2 - Rivers

Slide 1 - Diapositive

Slide 2 - Diapositive

Slide 3 - Diapositive

Today's Lesson 
To do:

  • Notes 'Irrigation' 
  • Worksheets 'Irrigation'


Goals: 

  • You know what irrigation is.
  • You know the difference between the three different types of irrigation.
  • you understand the advantages and disadvantages of the types of irrigation. 

Slide 4 - Diapositive

Notes
Irrigation:
Moving water from a
river/canal to land.
This water is used for 
farming (agriculture)

Slide 5 - Diapositive

Surface irrigation/Flood irrigation
The easiest way to water your crops (gewassen). 
Let water flow over your fields. 

Slide 6 - Diapositive

Sprinkler irrigation (beregening)
Water is sprayed into the air with machines,
it falls down on crops like rain.


Slide 7 - Diapositive

Drip irrigation
Plant are being watered drip by drip.
Water is placed directly at the 
root (wortel) of the plant.



Slide 8 - Diapositive

Which type of irrigation is this?

Slide 9 - Diapositive

Which type of irrigation is this?

Slide 10 - Diapositive

Which type of irrigation is this?

Slide 11 - Diapositive

Advantages and disadvantages - 
worksheet part one
Fill in the table in pairs
characteristics
positive or negative?
type of irrigation
Drip/Flood/Sprinkler
no materials needed
low costs (cheap)
no water loss (efficient)
education is necessary
machines are necessary
high costs (expensive)
too much water is used
(inefficient)
timer
3:00

Slide 12 - Diapositive

Advantages and disadvantages - 
answers part one
characteristics
advantage or disadvantage
type of irrigation
Drip/Flood/Sprinkler
no materials needed
P
Flood
low costs (cheap)
P
Flood
no water loss (efficient)
P
Drip
education is necessary
N
Drip/Sprinkler
machines are necessary
N
Drip/Sprinkler
high costs (expensive)
N
Drip/Sprinkler
too much water is used
(inefficient)
N
Flood

Slide 13 - Diapositive

This type of irrigation uses too much water
A
Drip
B
Surface/Flood
C
Sprinkler

Slide 14 - Quiz

Why would people use irrigation?
A
Because there is too little precipitation to water the plants naturally
B
Because it is too hot in the area for the plants to grow.
C
Because there are too many people who drink water in the area.
D
Because there is no river or other source of water nearby

Slide 15 - Quiz

Drip irrigation uses less water than sprinkler irrigation
A
True
B
False

Slide 16 - Quiz

Homework:
1. Finish worksheet 'Irrigation' (part two and three)

Slide 17 - Diapositive

Homework:
1. Finish worksheet 'Irrigation' (part two and three)
2.Create simple drawings for each type of irrigation (drip,surface/flood,sprinkler)

Slide 18 - Diapositive

Homework:
1. Finish worksheet 'Irrigation' (part two and three).
2.Create simple drawings for each type of irrigation (drip,surface/flood,sprinkler).
3.Add an explanation (20 words minimum) along with each drawing.

Slide 19 - Diapositive