The change of state from liquid water to ice is called .................
freezing
Water from natural resources is treated in water................ plants to make it safe for drinking.
treatment
Water for drinking must not look ................ or have a bad..............
murky , odour
Water on the Earth's surface is present in the form of oceans, lakes, rivers, ice sheets,..............., and underground water and --------------- ------------- in air.
glaciers, Water vapour
When liquid water changes into water vapour at the boiling point, it is called ......................
boiling or evaporation
The change of state from ice to liquid water is called ..............
melting
When water vapour changes into liquid water, it is called ------------------.
condensation
Pure water is ---------, ----------, and --------------.
colourless, odourless, and tasteless.
Water can exist in the solid,..............., or.............. state and can change from one state to another when it is ............. or ............. .
liquid or gas , heated or cooled
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