substances

Separation is done to __________?

• add impurities

• remove pure substance

• add pure substance

• remove impurities

Handpicking method is convenient when ?

• there is less quantity of impurities

• the size of impurities is big

• only used for separation of rice and stone

• small size of impurities

State true or false 

Husk is separated from wheat by winnowing process .

Methods used to separate tea leaves from tea is called _____?

• filteration

• decantation

• winnowing

• threshing

What is the example of decantation

• dirt and water

• husk and wheat

• oil and water

• both (a) and (c)

Boiling of water is an example of

• liquification

• vapourization

• churning

• evaporation

We filter impurities using

• sieve

• windmill

• filter paper

• bullock

State true or false

There are 12 methods of separation we read through this presentation .

State true or false

Filter paper is folded in conical shape .

Seiving is done with the help of _____ ?

• filter paper

• sieve

• both (a) and (b)

• none of the above