1. Most of the earth's surface consists of water; there is much more water than there is land.
2. Water can not only be found on the surface, but also in the ground
and in the air.
3. There is the same amount of water on earth as there was when the
earth was formed. The water that came from your faucet could contain
molecules that Neanderthals drank…
4. The overall amount of water on our planet has remained the same for
two billion
years.
5. There are two kinds of water; salt water and freshwater. Salt water
contains great amounts of salt, whereas freshwater has a dissolved salt
concentration of less than 1%. Only freshwater can be applied as
drinking water.
6. Water consists of three atoms, 2 Hydrogen atoms and an Oxygen atom,
that are bond together due to electrical charges.
7. The weight of a water molecule depends on the number of moles
present, as it is 18 grams per mole.
8. Water moves around the earth in a water cycle. The water cycle has
five parts: evaporation, condensation, precipitation, infiltration and
surface
run-off.
9. In a 100-year period, a water molecule spends 98 years in the ocean,
20 months as ice, about 2 weeks in lakes and rivers, and less than a
week in the
atmosphere.
10. Groundwater can take a human lifetime just to traverse a mile.
11. Most of the earth's surface water is permanently frozen or salty.
12. Water regulates the earth's temperature.
13. Water freezes at zero degrees Celcius.
14. Water vaporizes at a hundred degrees Celcius.
15. Water is the only substance that is found naturally on earth in
three forms: liquid, gas,
solid.
16. If water changes phase its physical appearance changes due to
parting of water molecules. In the solid phase the water molecules are
close together and in the gaseous phase they are
the furthest apart.
17. Frozen water is 9% lighter than water, which is why ice floats on
water.
18. A litre of water weighs 1.01 kilograms.
19. It doesn't take much salt to make water "salty." If one-thousandth
(or more) of the weight of water is from salt, then the water is
"saline."
20. Saline water can be desalinated for use as drinking water by going
through a process to remove the salt from the
water.
21. When water contains a lot of calcium and magnesium, it is called hard water. Hard water is not suited for all purposes water is normally used for.
22. To determine water quality certified agencies take samples that are tested in a laboratory. The samples are tested on various factors, to determine if they suffice water quality standards.
23. Each country has its own water quality standards that determine to which degree water should be purified, depending on the purpose it will be used for.
1. As oceans are very wide and there are multiple to be found on earth,
oceans store most of the earth's water. This is apparently 97% of the
total amount of water on earth, 2% of which is frozen.
2. 80% of the earth's water is surface water. The other 20% is either
ground
water or atmospheric water vapour.
3. Of all the water on earth, only 2,5% is fresh water. Fresh water is
either groundwater (0,5%), or readily accessible water in lakes,
streams, rivers, etc. (0,01%).
4. If all the world's water were fit into a gallon jug, the fresh water
available for us to use would equal only about one tablespoon.
5. Over 90% of the world's supply of fresh water is located in
Antarctica.
6. Less than 1% of the water supply on earth can be used as drinking
water.
7. The earth's total amount of water has a volume of about 344 million
cubic miles.
· 315 million cubic miles is seawater.
· 9 million cubic miles is groundwater in aquifers.
· 7 million cubic miles is frozen in polar ice caps.
· 53,000 cubic miles of water pass through the planet's lakes and
streams.
· 4,000 cubic miles of water is atmospheric moisture.
· 3,400 cubic miles of water are locked within the bodies of living
things.
8. Approximately 66% of the human body consists of water. Water exists
within all our organs and it is transported throughout our body to
assist physical functions.
9. The total amount of water in the body of an average adult is 37
litres.
10. Human brains are 75% water.
11. Human bones are 25% water.
12. Human blood is 83% water.
13. 75% of a chicken is water.
14. 80% of a pineapple is water.
15. 95% of a tomato is water.
16. 70% of an elephant is water.
17. Each day the sun evaporates a trillion tons of water.
18. A single tree will give off 265 liters (70 gallons) of water per
day in evaporation.
19. An acre of corn will give off 15,000 litres (4,000 gallons) of
water per day in evaporation.
20. A small drip from a faucet can waste as much as 75 litres of water
a day.
21. The amount of water we deliver on a hot summer day, 308 million
litres (80 million gallons), could fill 1.28 billion cups of coffee.
1. A person can live about a month without food, but only about a week
without water. If a human does not absorb enough water dehydration is
the result.
2. A person must consume 2 litres of water daily to live healthily.
Humans drink an average of 75.000 litres of water throughout their life.
3. Humans cannot drink salt water.
4. More than 2 billion people on earth do not have a safe supply of
water.
5. Water regulates the temperature of the human body. If you have
caught a fever you should drink lots of water.
6. Water removes waste from the human body.
7. You should never drink water straight from a lake or river, as it
can be damaging to your health.
8. If you live in an old house with lead pipelines you could get health
problems. Due to weathering of the pipelines lead can end up in your
tap water.
9. Your drinking water may be fluoridated to help prevent dental
cavities.
10. Water leaves the stomach five minutes after consumption.
11. Centres for Disease Control receive notification of more than 4,000
cases per year of illness due to drinking water contamination.
12. A quarter of the world's population is without safe drinking water.
13. Water can cause serious health damage when it is contaminated by
bacteria and other microrganisms.
14. In most cities and towns, drinking water from the tap is treated so
that people don't get sick with diseases such as cholera and typhoid,
which are caused by bacteria, viruses or parasites found naturally in
the
water. water use and saving water.
1. Humans use more and more water each year.
2. Americans use five times the amount of water that Europeans
use.
3. Humans daily use about 190 litres (50 gallons) of water.
4. A person pays about 25 cents for water use on a daily basis.
5. Two thirds of the water used in a home is used in the bathroom.
6. To flush a toilet we use 7.5 to 26.5 litres (2 to 7 gallons) of
water.
7. In a five-minute shower we use 95 to 190 litres (25 to 50 gallons)
of water.
8. To brush your teeth you use 7.5 litres (2 gallons) of water.
9. For an automatic dishwasher 35 to 45 litres (9 to 12 gallons) of
water is
used.
10. Saving a bottle of cold water in the fridge is better that taking
it from the tap, because it saves time and water.
11. While brushing your teeth, instead of leaving the tap running, you
should fill up a glass to rinse your
mouth.
12. Baths use less water than a typical shower. Soaking in a partially
filled tub will use less water than a short
shower.
13. The average person spends less than 1 % of his or her total
personal expenditure dollars for water, wastewater, and water disposal
services.
14. Less than 1% of the water treated by public water systems is used
for drinking and
cooking.
15. Bottled water can be up to 1000 times more expensive than tap water
and it may not be as
safe.
16. Today, at least 400 million people live in regions with severe
water shortages.water pollution and related
problems:
2. About 450 cubic kilometres of wastewater are carried into coastal
areas by rivers and streams every year. These pollution loads require
an additional 6,000 cubic kilometres of freshwater to dilute the
pollution. This amount equals to two-thirds of the world's total stable
run-off.
3. Public water supplies must meet or exceed certain standards. The
kind of
standards that are used differ for each country. Many public water
supplies consistently supply water that is much better than the minimum
standards.
4. Four litres (1 gallon) of gasoline can contaminate approximately 2.8
million
litres (750,000 gallons) of water.
5. Groundwater supplies serve about 80% of the population, whereas up
to 4% of usable groundwater is already
polluted.
6. There are 12,000 different toxic chemical compounds in industrial
use today, and more than 500 new chemicals are developed each
year.
7. Over 70,000 different water contaminants have been identified.
8. Each day almost 10,000 children under the age of 5 in Third World
countries die as a result of illnesses contracted by use of impure
water.
9. Today, drinking water meets over a hundred different standards for
drinking water
quality.
10. The principal sources of contamination are associated with the post
World War II chemical age.
11. If all new sources of contamination could be eliminated, in 10
years, 98% of all available groundwater would then be free of pollution.
12. Most of the world's people must walk at least 3 hours to fetch
water.
13. Freshwater animals are disappearing five times faster than land
animals.
1. It takes 5,680 litres (1,500 gallons) of water to process one barrel
of beer.
2. It takes 450 litres (120 gallons) of water to produce one egg.
3. To process one chicken we need 44 litres (11.6 gallons) of water.
4. To process one can of fruit or vegetables we need 35 litres (9.3
gallons) of water.
5. About 25,700 litres (6,800 gallons) of water is required to grow a
day's food for a family of four.
6. It takes 7,000 litres (1,850 gallons) of water to refine one barrel
of crude oil.
7. To manufacture new cars 148,000 litres (39,000 gallons) of water are
used per car.