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10 questions
what is separation ?
mixing two different components
selecting different kinds of components from a mixture
arranging things in an order
none of the above
best method to remove husk from seed or grains
winnowing
threshing
sieving
hand picking
hand picking is a method of -
removing large size impurities b hand
removing small impurities by hand
removing husk by wind
removing chaff by wind
the tool sieve has -
no holes for separation
big holes for separation
small holes for separation
1 big hole for separation
both sedimentation and decantation is important to clean the water
true , both is needed
false , only sedimentation
false , only decantation
false , none of them is required
in process filtration we use which paper
butter paper
foil wrap
sheet paper
filter paper
evaporation is a process in which -
water turns to water vapour on boiling
water turns to ice on freezing
water turns to water vapour by natural heat
none of the above
petrol is soluble in water.
true
false
which of the following methods are used in kitchen for separation
sieving
winnowing
threshing
hand picking
which of the following is a use of evaporation
removing sea water to obtain salt
removing tea leaves from tea
removing mud from water
removing seeds from lemonade
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