Water is a wonderful thing in this world...........

seriously......
I have realised that water.........

is really an amazing creation of Allah.

Before this,I use water to drink,to bath,to wash,to cook,

anything else......

but actually I think that most of us never realise

water plays an important role in our life...........

When I study biochemistry in INTEC,

I explore one thing that I never appreciate it in my life...

that is water....

Firstly,we look at our body first. two over three or more than half of our body is made from WATER......

hOw about the saliva,the tears,the mucus,the sweat.......all of them are WATER...........

Then,we can think about some thing.........why we sweat water vapour????????I t is a weird question...but let us think of it...why not we sweat other things like sugar,heat,fat.........why must be water????

why?? because water is a good coolant.why we have to sweat???to eliminate heat from our body,right???

water is a good coolant as water have high specific capacity of heat.That's means water really need to absorb a lot of HEAT to rise its temperature and release a lot of HEAT to reduce its temperature,That is why we feel cool and fresh when we finished sweating as the water from the sweat releases a lot of heat actually.

Then,I want to ask a question......why we called water as a universal solvent????

The answer is based on the chemical properties of water itself!!!!
We commonly called water as H2O.

The meaning of chemical formula of water,H2O is one atom of oxygen boundS to two atoms of hydrogen.

The hydrogen atoms are "attached" BY COvalent Bond to one side of the oxygen atom, resulting in a water molecule having two opposite charges that are negative and positive charge.

Hyrogen atom REPRESEnt positive charge (+) while oxygen atom represent negative side (-) .

Since opposite charges attract to each other, water molecules tend to attract each other, making water sticky.

The side with the hydrogen atoms (positive charge) attracts the oxygen side (negative charge) of a different water molecule.

All these water molecules attracting each other mean they tend to clump together BY HAVING OPPOSITE CHARGES. This is why water drops are, in fact, drops!

hENCe,water is called the "universal solvent" because it dissolves more substances than any other liquid.

This means that wherever water goes, through the ground or our bodies, it takes along valuable chemicals, minerals, and nutrients.

haha...how about this???what is this...how WATER FROM ROOT oF A PLANT CAN CLIMB UP TO THE LEAVES????There is a stair inside the stem of the plant......

of course not....it is wrong.............

Even if we have never heard of capillary action, it is still important in our life.

Capillary action is important for moving water especially inside the stem. It is defined as the movement of water within the spaces of a porous material due to the forces of adhesion, cohesion, and surface tension.
According to my green biochemistry textbook,surface tension is a measure of the strength of the film of water surface.

The force attraction between the water molecules creates a strong film . This surface tension permits water to hold up substances heavier and denser than itself.

Actually,capillary action occurs because water is sticky, but first of all,thanks to adhesion and cohesion forces.Cohesion means the attraction between water molecules.

Adhesion means attraction between water molecules and ather substances such as the capillary wall of the stem.

So,water tends to stick together as in a drop.We can see other examples of how water sticks to the glass,clothes and soil.

Besides,a steel needle carefully placed on the surface of water in the glass will float.

Some aquatic insects such as the water strider is able to walk on the surface of the water by relying on the concept of surface tension of water.

ThAT'S ALL ABOUT WATER..i HOPE AFTER READING THIS,WE WILL BE MORE aPPRECIABLE TO WATER...BYE,,