CLASS– VI ASSIGNMENT SEPARATIONS OF SUBSTANCE
Q.1 What is separation?
Q.2 Why the separation of substances is necessary?
Q.3 What is the basis of separation of components of mixture?
Q.4 When do we use hand picking as the method of separation?
Q.5 What is threshing? How is it done?
Q.6 Define winnowing? What is the principle of using winnowing as method of separation?
Q.7 Where do we find sieving as the method of separation?
Q.8 You are given a mixture of sand, salt and iron filling. Suggest some methods for separating all the components of this mixture?
Q.9 Define filtration? Give 3 examples where filtration method is used.
Q.10 What is evaporation? Where do we use this method at home?
Q.11 What method is used to separate salt from sea water and how?
Q.12 In which cases handpicking is enough as a method of separation?
Q.13 One method of separation is not enough. Comment.
Q.14 Differentiate between a pure substance and a mixture.
Q.15 Is the separation of two immiscible liquids using separating funnel same as decantation?
Q.16 What do you use to remove discarded tea leaves from tea?
Q.17 What impurities are present when you buy wheat, rice or pulses from the market?
Q.18 What is the process called when stem of plants (stalks) are beaten to separate grains?
Q.19 What process is used to separate light solid particles from heavier solid particles?
Q.20 What will settle down when mud and rice are added to water?
Q.21 What is the process called when strainer or filter funnel is used?
Q.22 What is a solution called which contains the maximum amount of dissolved solute?
Q.23 How do you separate a light liquid from a heavier liquid?
Q.1 What is separation?
Q.2 Why the separation of substances is necessary?
Q.3 What is the basis of separation of components of mixture?
Q.4 When do we use hand picking as the method of separation?
Q.5 What is threshing? How is it done?
Q.6 Define winnowing? What is the principle of using winnowing as method of separation?
Q.7 Where do we find sieving as the method of separation?
Q.8 You are given a mixture of sand, salt and iron filling. Suggest some methods for separating all the components of this mixture?
Q.9 Define filtration? Give 3 examples where filtration method is used.
Q.10 What is evaporation? Where do we use this method at home?
Q.11 What method is used to separate salt from sea water and how?
Q.12 In which cases handpicking is enough as a method of separation?
Q.13 One method of separation is not enough. Comment.
Q.14 Differentiate between a pure substance and a mixture.
Q.15 Is the separation of two immiscible liquids using separating funnel same as decantation?
Q.16 What do you use to remove discarded tea leaves from tea?
Q.17 What impurities are present when you buy wheat, rice or pulses from the market?
Q.18 What is the process called when stem of plants (stalks) are beaten to separate grains?
Q.19 What process is used to separate light solid particles from heavier solid particles?
Q.20 What will settle down when mud and rice are added to water?
Q.21 What is the process called when strainer or filter funnel is used?
Q.22 What is a solution called which contains the maximum amount of dissolved solute?
Q.23 How do you separate a light liquid from a heavier liquid?
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