Lesson 4 - Irrigation

• Aardrijkskunde
• Middelbare school
• mavo
• Leerjaar 1

Unit 2 - Rivers

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. 

Notes

Irrigation:

Moving water from a
river/canal to land.
This water is used for 

farming (agriculture)

Surface irrigation/Flood irrigation

The easiest way to water your crops (gewassen). 

Let water flow over your fields. 

Sprinkler irrigation (beregening)

Water is sprayed into the air with machines,

it falls down on crops like rain.

Drip irrigation

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

Which type of irrigation is this?

Which type of irrigation is this?

Which type of irrigation is this?

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)

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

This type of irrigation uses too much water

1. Drip
2. Surface/Flood
3. Sprinkler

Why would people use irrigation?

1. Because there is too little precipitation to water the plants naturally
2. Because it is too hot in the area for the plants to grow.
3. Because there are too many people who drink water in the area.
4. Because there is no river or other source of water nearby

Drip irrigation uses less water than sprinkler irrigation

1. True
2. False

Homework:

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

Homework:

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

2.Create simple drawings for each type of irrigation (drip,surface/flood,sprinkler)

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.