Cette leçon contient 26 diapositives, avec quiz interactifs et diapositives de texte.
La durée de la leçon est: 45 min
Éléments de cette leçon
Section 2.1: A world of water
1. Where is water found in the world?
2. Why is freshwater scarce?
3. How are rivers formed?
4. How do rivers change, from source to mouth?
Slide 1 - Diapositive
How many % of the Earth's fresh water is surface water?
A
22%
B
35%
C
65%
D
78%
Slide 2 - Quiz
Why is freshwater scarce?
A
97% of the water is saline
B
Because of the Climate Change
C
It takes time to make ocean water usable
D
This is found in glaciers and ice caps
Slide 3 - Quiz
Where can we find land ice?
A
Greenland
B
Iceland
C
Antarctica
D
The Northpole
Slide 4 - Quiz
The Large Water Cycle
Slide 5 - Diapositive
What is an effect of condensation?
A
Evaporation
B
Transpiration
C
Clouds are formed
D
Surface run-off
Slide 6 - Quiz
What word fits the gap? "Some water ............... deeper into the ground and is slowly transferred back to the river or sea."
A
condensates
B
evaporates
C
infiltrates
D
rises
Slide 7 - Quiz
This occurs when water vapour is turned back into water droplets as it cools down:
A
Evaporation
B
Transpiration
C
Condensation
D
Infiltration
Slide 8 - Quiz
Which three forms of precipitation do you know?
Slide 9 - Question ouverte
What is the correct word for the borders of the area of a river?
A
Water separation
B
Watershed
C
Water divide
D
Watersplit
Slide 10 - Quiz
Where is this: Some tributary rivers have joined the main river. The rate of erosion is decreasing, and there are fewer large rocks on the river bed to be eroded
A
Upper course
B
Middle course
C
Lower course
D
Of course
Slide 11 - Quiz
Section 2.2: The Rhine: a river in Europe
1. What are the differences between the upper, middle and lower courses of the River Rhine?
2. What are the main uses of the River Rhine?
3. Why is water quality in the River Rhine an international issue?
Slide 12 - Diapositive
In which part of the river does the water flows fastest?
A
Upper course
B
Middle course
C
Lower course
D
It differs
Slide 13 - Quiz
What are the differences between the upper, middle and lower courses of the River Rhine?
Upper Course
Middle Course
Lower Course
Rocky river bed
High and steep but close river banks
A lot of erosion
Less gradient, but more river discharge
More tributaries
The river splits in three distributaries
Medium size rocks
The river moves particles it has eroded
Small rocks and sand
Slide 14 - Question de remorquage
Slide 15 - Diapositive
Where does the Rhine get it's water during the summer?
A
Glaciers
B
Rainfall
C
Bottles
D
The sea
Slide 16 - Quiz
What is not a main use of the river Rhine?
A
Drinking water
B
Transport
C
Bricks
D
Hydro power
Slide 17 - Quiz
How does meandering work?
Slide 18 - Question ouverte
Name two problems concerning water is the near future.
Slide 19 - Question ouverte
Why is water quality in the River Rhine an international issue?
Slide 20 - Question ouverte
Section 2.3: Dealing with water in the Netherlands
1. How are river discharges in the Netherlands likely to change in the future?
2. How does the Netherlands deal with high and low river discharges? 3. How does the Netherlands deal with extreme rainfall?
Slide 21 - Diapositive
How does the Netherlands deal with high and low river discharges?
Slide 22 - Question ouverte
What change was made to the river in regard to the Room for the River project?
A
They moved the dyke
B
They made an extra channel
C
They made the dykes higher
D
They removed the groynes
Slide 23 - Quiz
What is the most important reason to lower the groynes?
Slide 24 - Question ouverte
How are river discharges in the Netherlands likely to change in the future?
A
Higher peaks of discharges
B
Lower discharges in the winter
C
The discharges will stay the same
D
Lower discharges in summer.
Slide 25 - Quiz
What are the differences between upper, middle and lower courses of the River Nile?