What is water???

What the water is ???

Water is a very important substance, as it makes up the larger part of an organism’s body. But what exactly is water? Inside the body of a human being there is a skeleton, which makes your body solid and makes sure you can stand up without falling apart. Water is also a kind of skeleton. It consists of tiny particles, the atoms, just like every other substance on earth. One of these atoms is called hydrogen and the other is called oxygen. As you probably know the air that we breathe also contains oxygen. One particle of water is called a molecule. When lots of water molecules melt together we can see the water and drink it or use it, for instance to flush a toilet.

  • Water is made up of hydrogen and oxygen. Two hydrogen atoms are linked by a single chemical bond to one oxygen atom. Its chemical formula is H2O.
  • Water is a tasteless, odorless, and nearly colorless (it has a slight hint of blue tint that can be seen in very deep layers) substance in its pure form that is essential to all known forms of life and is known also as the most universal solvent.
  • Water is an abundant substance on Earth. It exists in many places and forms. Mostly in the oceans and polar ice caps, but also as clouds, rain water, rivers, freshwater aquifers, and sea ice. On the planet, water is continuously moving through the cycle involving evaporation, precipitation, and runoff to the sea.
  • At Standard Atmospheric Pressure (760mm of mercury) water has a freezing point of 0°C (32F) and a boiling point of 100°C (212F). Water is at its maximum density at 4°C (39F).
  • 75% of the earth’s surface is covered by water.
  • The oceans contain 97.5% of the earth’s water, the land 2.4%, and the atmosphere holds less than .001%
    Only 1% of the earth’s water is available for drinking; 2% is frozen.
  • 50-90% of the weight of living organisms is made up of water. Blood in animals and sap in plants is mostly water.
  • The adult human body is composed of approximately 55 to 60% water–the brain is composed of 70% water, as is skin, blood is 82% water, and the lungs are nearly 90%t water.
  • A person needs 4 to 5 gallons of water per day to survive
  • Human can survive about a month without food, but only 5-7 days without water.
  • The average urban home of 5 people uses 640 liters of water per day.
  • It takes about 2.5 liters of water to cook pasta and about 5 liters to clean the pot.
  • The average bath holds between 150 and 200 liters of water when filled to the brim.
  • A toilet is the biggest user of indoor water. On average, it uses 11 liters of water when flushed.

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