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WorksheetsSeparation of Substances
Total questions: 15
Worksheet time: 8mins
Separating the wheat grain from the stalk of a wheat plant.
winnowing
Threshing
Hand-picking
sieving
Separating pieces of stone and husk from rice and pulses
winnowing
Threshing
Hand-picking
sieving
The method of separating heavier substances and lighter substances.
winnowing
Threshing
Hand-picking
sieving
Seeds and solid particles of pulp from fruit juices are separated by the method of-
sedimentation
filtration
decantation
evaporation
Separating tea leaves from prepared tea by the method of-
sedimentation
filtration
decantation
evaporation
Which of the method is not used by the farmers
winnowing
threshing
sieving
Common salt is obtained from the sea water by the method of-
sedimentation
filtration
decantation
evaporation
The process of settling heavier components is called -
sedimentation
filtration
decantation
evaporation
The process of evaporation takes place continuously wherever water is present.
True
False
Machines are also used to thresh large quantities of grain.
True
False
Decantation is used to separate oil and water.
True
False
Sieving is used when components of a mixture have same sizes.
True
False
Sometimes, it may not be possible to separate components of a mixture by winnowing and handpicking.
True
False
Wind manages to separate substances during threshing.
True
False
Handpicking is used to separate dirt and husk from grains.
True
False
