Who am I? I am tasteless, I am colourless , I am shapeless, I am odourless , But without me, there’s no life. Can you tell me who am I? Yes! I ‘m … •         Most people think of water as a simple substance that’s very common. But there’s actually more to it than just a simple substance. Not only does it support life – it is regarded as life itself. People can live for weeks, even a month without food but not without water. That’s fact. •         It is because adult’s body is composed of 70 % of water and for infants at birth water is roughly 80 % of the infant’s weight. And around 70 to 75 percent of the earth surface is made of water. •         That is why it is without question that all living things rely on water. •         Hot water turns into ice faster than the cold •         Water is the most common  substance found on the Earth. •         About 3/4 th of the Earth is covered with water. •          Water can be found in ponds, rivers, lakes, oceans and seas.