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Lesson 4 - Irrigation
Unit 2 - Rivers
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Slide 1:
Diapositive
Aardrijkskunde
Middelbare school
mavo
Leerjaar 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
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