Worksheet Solutions: Methods of Separation in Everyday Life

Multiple Choice Questions (MCQs)

Q1: What is handpicking used for?
(a) Separating liquids from solids
(b) Separating small quantities of substances based on size and shape
(c) Separating grains from stalks
(d) Separating magnetic substances
Ans: (b) Separating small quantities of substances based on size and shape

Q2: Which method uses wind to separate lighter particles?
(a) Sieving
(b) Threshing
(c) Winnowing
(d) Filtration
Ans: (c) Winnowing

Q3: What is the purpose of evaporation in separation techniques?
(a) To separate insoluble solids from liquids
(b) To convert liquid into vapor and separate dissolved solids
(c) To remove larger particles from smaller ones
(d) To separate grains from husk
Ans: (b) To convert liquid into vapor and separate dissolved solids

Q4: Which of the following is NOT a method of separation?
(a) Churning
(b) Sedimentation
(c) Compression
(d) Filtration
Ans: (c) Compression

Q5: What does a thresher do?
(a) Separates liquids from solids
(b) Separates grains from stalks
(c) Separates husk from grains
(d) Separates small stones from wheat
Ans: (b) Separates grains from stalks

Fill in the Blanks

Q1: The process of separating grains from husk using wind is called __________.
Ans: winnowing

Q2: __________ is used to separate lighter components from heavier ones by agitating a mixture.
Ans: Churning

Q3: In __________, heavier particles settle down at the bottom of a liquid.
Ans: sedimentation

Q4: __________ involves using a filter to remove insoluble solids from liquids.
Ans: Filtration

Q5: To obtain salt from seawater, the process of __________ is used.
Ans: evaporation

True or False

Q1: Handpicking is a method used for separating large quantities of substances.
Ans: False

Q2: Sieving allows larger particles to pass through while trapping smaller particles.
Ans: False

Q3: Threshing is the process of separating grains from their stalks.
Ans: True

Q4: Magnetic separation can be used to separate non-magnetic substances from magnetic ones.
Ans: False

Q5: Winnowing is an effective method for separating heavier grains from lighter chaff.
Ans: True

Match the Following

Ans: