About 71 percent of the Earth’s surface is water-covered, and the oceans hold about 96.5 percent of all Earth’s water. Although the ocen’s water is too salty to drink, over 90% of the worlds supply of fresh water is in Antartica. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog.
It’s true. The human body is made up of about 66% water and 70% of the human brain is water.
The jellyfish and cucumber are each about 90% water.
Water is everywhere and in everything.
Here are a few more facts about water:
- Water is the most important resource in the world.
- 7% of the fresh water on Earth is trapped in glaciers.
- Water can dissolve more substances than any other liquid, including sulfuric acid.
- The freezing point of water lowers as the amount of salt dissolved in it increases. With average levels of salt, seawater freezes at -2 °C (28.4 °F).
- To create one pint of beer it takes 20 gallons of water.
- 80% of all illness in the developing world is water related.
- Unsafe water fatally harms almost 200 young people every hour.
- Collectively, South African women and children walk a daily distance equivalent to 16 trips to the moon and back to fetch water.
- A person can live about a month without food, but only about a week without water.
- 300 tons of water are required to manufacture 1 ton of steel.
- Hot water can freeze faster than cold water under some conditions (commonly known as the Mpemba effect).
- If the entire world’s water were fit into a 4 litre jug, the fresh water available for us would equal only about one tablespoon.
- Water regulates the Earth’s temperature.
- 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.
- Drinking too much water can be fatal (known as water intoxication).
- There is more fresh water in the atmosphere than in all of the rivers on the planet combined.
- A leaky tap that drips at the rate of one drip per second can waste more than 3,000 gallons per year.
- The first water pipes in the U.S. were made from hollowed logs.
- NASA has discovered water in the form of ice on the moon.
- A bath uses up to 70 gallons of water; a five-minute shower uses 10 to 25 gallons.
- Ocean tides are caused by the rotation of the Earth and the gravitational pull of the Moon and Sun acting on ocean water.
In addition to being a healthy drink, water does a lot for us every minute of every day.
Raise a glass and toast the hard working water you are about to drink!