World water day

edu

1. 1

2. 2
World Water day is a day for
people to show support and
appreciate the fresh water (Non
salty water) which is only 1% of
the world water .

3. 3
Water facts

4. 4
What is water?
Water is made of tiny molecules of hydrogen and oxygen.
Each one is so small that you can’t see it even with the most
powerful microscope.
Pure water has no colour, no taste and doesn’t smell of
anything.
Water exists in three forms on the Earth:
> solid (ice, hail, snow or frost)
> liquid (in lakes, oceans, rain, dew, fog or mist)
> gas (steam or water vapour - "invisible" water in the air).

5. 5
Where can we get water?
About 97% of the water on the Earth's surface is in the
world's oceans.
This is where you can find most of the other 3%:
> Lakes
> Rivers
> Polar ice caps
> Clouds
> Rain
> Stored in rocks (aquifers)
> Sea ice

6. 6
ABOUT 70 % OF THE EARTH’S SURFACE IS
COVERED WITH WATER

7. 7
THE TOTAL AMOUNT OF WATER ON THE EARTH
IS ABOUT 326 MILLION CUBIC MILES OF WATER

8. 8
70 % OF AN ADULT´S BODY IS WATER .

9. 9
Why do we need water?
To carry nutrients and waste in the body
To lubricate joints, digestive tract and body tissues
To cool the body, especially during periods of physical activity.
To be used in factories, agriculture, hospitals, hotels, etc.

10. 10
How much water do we need?
Most people need about 6-8 glasses of water each day.
Inadequate fluid intake can lead to constipation and dehydration.
Caffeine-containing beverages (coffee, tea, colas, etc.) should not be drunk
because caffeine actually causes you to lose water.
More water may be needed during times of fever, or illness.
Athletes should drink additional amounts before, during and after
exercise.

11. 11

12. 12
BY THE TIME A PERSON FEELS THIRSTY, HIS OR HER BODY
HAS LOST OVER 1 % OF ITS TOTAL WATER AMOUNT.

13. 13
One in six people have no access to clean water
Access to clean drinking water is a fundamental
right, but it is not a fact in many parts of the
world. Contaminated water causes 1.5 million
deaths a year, 2.5 billion people live without
basic sanitation and one in six people does not
have access to clean water.

14. 14
Why should we save water?
Of all the water in the world, only 3% is fresh.
Less than one third of 1% of this fresh water is available for human
use.
The rest is frozen in glaciers or polar ice caps, or is deep within the
earth, beyond our reach.
To put it another way, if 100 liters represents the world's water,
about half a tablespoon of it is fresh water available for our use.

15. 15
Water saving tips

16. 16
A dripping tap could waste as much as 90 liters a week.
Brushing your teeth with the tap running wastes almost 9 liters a minute.
Rinse out from a tumbler instead.
Cool water kept in the fridge means you won't have to run the tap for
ages to get a cold drink.
Don't use your washing machine until you've got a full load. A full load
uses less water than 2 half loads.
A to Z tips to save water

17. 17
A to Z tips to save water
Every time you boil an egg save the cooled water for your houseplants.
They'll benefit from the nutrients released from the shell.
Fit a water saving device in your cistern and save up to three liters a
flush.
Grow your grass a little longer. It will stay greener than a close mown
lawn and need less watering.
Hoeing stimulates the growth of plants, reduces water loss from the soil
surface and removes weeds that take up valuable water and nutrients.

18. 18
Installing a water meter can save you water and money by monitoring
how much you use.
Just taking a five minute shower very day, instead of a bath, will use a
third of the water, saving up to 400 liters a week.
Kettles should be filled with enough water for your needs but not to the
brim. This will reduce your fuel bills too.
Lag your pipes to avoid bursts and leave your heating on a low setting
while you are out in cold weather to prevent pipes freezing.
A to Z tips to save water

19. 19
Mulch for moisture in the garden. Adding a layer of tree bark, compost,
coconut husks or even newspaper keeps the sun off the soil and retains
precious moisture.
No further watering is usually required for established trees and shrubs.
Once a week is all the watering your lawn needs even in the hottest
weather.

Purchasing a water butt will help you to collect rain water for use on the
garden.
A to Z tips to save water

20. 20
A to Z tips to save water
Question your local garden centre about the water requirements of
different plants. Some thrive in drier conditions.
Replacing a toilet cistern can save water.
Sprinklers can be wasteful. A sprinkler can use as much water in an
hour as a family of four will use in a day!
Trigger nozzles can save water by using it only when needed.

21. 21
THANK YOU FOR ATTENTION .

22. 22
Use the dirty water when cleaning a fish tank on your houseplants. It's
rich in nitrogen and phosphorus, which provides an excellent fertilizer.
Very 'water efficient' washing machines and dishwashers are now
manufactured.
You'll find that they save on energy too.
Water your garden at the coolest part of the day to reduce evaporation.
Xeriscape means to use plants that require less water.
A to Z tips to save water

23. 23
A to Z tips to save water
You can use less water by turning the hot tap down, rather than the cold
tap up, if you require cooler water.
Z The end of the alphabet but not the end of water saving ideas - why
don’t you tell us of any you've discovered?

24. 24
Run home now
to save water,
before it runs
out on you!