Question 1
How many litres of water are needed to fill a cube whose sides each measure 1 metre ?
     100 L           1.000 L           10.000 L

Question 2
What is the name of the great navigator who was the first to sail round the world in 1519 ?
     Christopher Columbus       Ferdinand Magellan       Vasco da Gama

Question 3
Where would you find the oldest aqueducts in the world ?
     China           Greece           Italy

Question 4
How many litres of water are used to produce 1 litre of alcohol ?
     100 L           150 L           200 L

Question 5
Where is the water stored in a water tower ?
     at the top           at the bottom          in the middle

Question 6
When ice melts, does its volume
     increase           remain the same           decrease

Question 7
How do we tell which is the left bank and which is the right bank of a river ?
     by its position in relation to the sea
     by the direction of the current
     by its source

Question 8
How many days can a man live without drinking ?
     about 1 day           about 3 days         about 40 days

Question 9
At what temperature does water boil at sea level ?
     99,5° C           100° C           100,5° C

Question 10
Which of the following foods contains 95% water ?
     meat         salad        fish

Question 11
What is the name given to the point where two watercourses meet ?
     tributary           confluence           delta

Question 12
How many litres of water per day are available for use by an inhabitant in a developing
country ?
     10 to 30 L           40 to 50 L          60 to 75 L

Question 13
The current of a river flows in which direction ?
     from upstream to downstream
     from north to south
     from downstream to upstream

Question 14
In the human body, what proportion of its weight is made up of water ?
     35%         55%           65%

Question 15
In how many forms do we find water on earth ?
     2          3          4

Question 16
How much water does a hen need to make an egg ?
     0,5 L           0,75 L           1 L

Question 17
How much water does a cow drink per day ?
     10 L           40 L           60 L

Question 18
How many showers can you have for the price of a bath ?
     2          3          5

Question 19
What causes sea water to be green in coastal areas ?
     rocks           plankton           algae

Question 20
Your tap is dripping (drop by drop). How much water does that represent in a year ?
     about 1000 L           about 3500 L           about 5000 L