Water is a colorless, odorless liquid that is the basis of fluids in living organisms and forms seas, lakes, rivers, and rain. It has defined melting, boiling, and freezing points - the temperatures at which it transitions between liquid, gas, and solid states. The human body contains roughly 80% of its weight as water, with it being a major component of blood, plasma, muscles, and other fluids.

2. Presented by,
Renju K R
Physical Science
Roll No:204

3. WATER
A colourless,transparent,odourless,liquid which forms
the seas,lakes,rivers,and rain and is the basis of the fluids
of living organisms.

4. MELTING POINT
Temperature at which a solid melts into liquid is the
melting point of that substance.

5. BOILING POINT
The constant temperature at which a liquid boils is
its boiling point.

6. FREEZING POINT
Freezing point is the temperature at which a liquid
changes to the solid state.

7. QUANTITY OF WATER IN OUR BODY
Human body has about 80% of water by
weight .Blood,plasma,other fluids.muscles etc. contain
water.