Match the Columns. Column A Column B (a) Hand-picking (i) Separation of grains and stalks (b) Condensation (ii) To increase the speed of sedimentation (c) Threshing (iii) Conversion of vapours to liquid (d) Evaporation (iv) Separation of husk and grain (e) Sieving (v) Separation of chalk and water (f) Filtration (vi) Conversion of liquid into vapours (g) Winnowing (vii) Separation of stones and sand (h) Loading (viii) Separation of pulses and stones

(a) Hand-picking (viii) Separation of pulses and stones Pulses and stones are separated by using hand. The process is known as hand-picking. (b) Condensation (iii) Conversion of vapours to liquid The process of conversion of water vapour into its liquid state is known as condensation. The formation of cloud is because of condensation. (c) Threshing (i) Separation of grains and stalks The process of removing grains from stalks is known as threshing. It is done by violently beating the stalks. (d) Evaporation (vi) Conversion of liquid into vapours Evaporation is the process of converting water into its vapour state. Drying of clothes is an example of this. (e) Sieving (vii) Separation of stones and sand To separate stones from sand, sieving is used. It is done with the help of a sieve. (f) Filtration (v) Separation of chalk and water Chalk and water is separated by the process of filtration. This is done using a filter. (g) Winnowing (iv) Separation of husk and grain Winnowing is the method used to separate husk from grains by the help of wind. It seperates lighter particles from the heavier ones. (h) Loading (ii) To increase the speed of sedimentation Loading is the process used to increase the speed of sedimentation. Column A Column B (a) Hand-picking (viii) Separation of pulses and stones (b) Condensation (iii) Conversion of vapours to liquid (c) Threshing (i) Separation of grains and stalks (d) Evaporation (vi) Conversion of liquid into vapours (e) Sieving (vii) Separation of stones and sand (f) Filtration (v) Separation of chalk and water (g) Winnowing (iv) Separation of husk and grain (h) Loading (ii) To increase the speed of sedimentation

E M B I B E

CANDID New Trends in SCIENCE 6>Chapter 5 - Separation of Substances>TEST YOUR KNOWLEDGE>Q B

EASY

6th CBSE

IMPORTANT

Earn 100

makes use of the fact that chaff is lighter than the grain. (Winnowing/Sedimentation)

100% studentsanswered this correctly

Important Questions on Separation of Substances

EASY

6th CBSE

IMPORTANT

CANDID New Trends in SCIENCE 6>Chapter 5 - Separation of Substances>TEST YOUR KNOWLEDGE>Q B

_____ is done to separate solid substances that are differ in size.

MEDIUM

6th CBSE

IMPORTANT

CANDID New Trends in SCIENCE 6>Chapter 5 - Separation of Substances>TEST YOUR KNOWLEDGE>Q C

Match the Columns.

Column A	Column B
(a) Hand-picking	(i) Separation of grains and stalks
(b) Condensation	(ii) To increase the speed of sedimentation
(c) Threshing	(iii) Conversion of vapours to liquid
(d) Evaporation	(iv) Separation of husk and grain
(e) Sieving	(v) Separation of chalk and water
(f) Filtration	(vi) Conversion of liquid into vapours
(g) Winnowing	(vii) Separation of stones and sand
(h) Loading	(viii) Separation of pulses and stones