What are the observations and conclusions when tap water is boiled and evaporated in watch glass?
What is the importance of dissolved salts in water?
How is air dissolved in water different from ordinary air?
Boiled or distilled water tastes flat.
Ice at zero degrees centigrade has greater cooling effect than water at 0oC.
Lakes and rivers do not suddenly freeze in the winters.
'Water is the universal solvent'. Comment.
Explain the terms: