Chemistry
Answer
(a) Fog — When the water vapour changes into tiny droplets of water near the ground, it is known as fog.
(b) Mist — When the tiny droplets of water remain suspended in air, it is called mist.
(c) Dew — When the water vapour condenses on cold objects, it forms tiny droplets of water called dew. It is often seen on grass, leaves and flowers in winter mornings.
(d) Frost — When the dew freezes, it is called frost.
Related Questions
Give reason:
The taste of spring water differs at different places.
Give reason:
Ice, water and steam are considered to have the same chemical composition.
Common salt is obtained from sea water by:
- distillation
- crystallisation
- evaporation
- sublimation
The substance which is insoluble in water :
- sugar
- salt
- chalk
- sodium carbonate