:: water ::

As we know, earth is covered by 70% of water. Water is divided into two types, salty water and the plain water. The combinations of water are from 2 atoms of hydrogen and 1 atom of oxygen. Atom is the particles in element. Water is a group of liquid. If u notice, water can move freely from one place to another, it is because the arrangement of the molecules of water are not packed very closely together and they can move independently of each other in all directions at moderate speeds, and that’s hot water can move freely. Water in small quatity has no colour, but when it turn to large quantity, we can almost see the colour of water like blue or green or brown, for example like sea, it has a blue colour, and i think the colour of the sea came from the reflection of the colour of the sky.

Water is very useful to human. Human needs water to live by drinking it. Water can give some sort of energy to people like us. Beside that, we also can use water to wash material such as our cloth, car, and our body. But people nowdays, they not just wasted the water, but they also make the water polluted. For me, we have to take care the water in our world, someday, they have no clean water in this world to use it, because all water are polluted by the human. So, think about it! =)