Matter Around Us Book Back Questions & Answers
Unit 3 > Science > Class 6 > Samacheer Kalvi - English Medium
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1. _____ is not made of matter
a. gold ring
b. iron nail
c. light ray
d. oil drop
Correct answer: c. light ray
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2. 200 ml of water is poured into a bowl of 400ml capacity. The volume of water now will be
a. 400 ml
b. 600 ml
c. 200ml
d. 800ml
Correct answer: c. 200ml
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3. Seeds from water-melon can be removed by_____method.
a. hand-picking
b. filtration
c. magnetic separation
d. decantation
Correct answer: a. hand-picking
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4. Lighter impurities like dust when mixed with rice or pulses can be removed by_______
a. filtration
b. sedimentation
c. decantation
d. winnowing
Correct answer: d. winnowing
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5. ______ of is essential to perform winnowing activity
a. Rain
b. Soil
c. Water
d. Air
Correct answer: d. Air
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6. Filtration method is effective in separating______ mixture.
a. solid-solid
b. solid-liquid
c. liquid-liquid
d. liquid-gas
Correct answer: b. solid-liquid
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7. From the following______is not a mixture
a. Coffee with milk
b. lemon juice
c. water
d. ice cream embedded with nuts
Correct answer: c. water
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1. Air is not compressible
Correct answer: False
Correct Statement: Air is highly compressible
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2. Liquids have no fixed volume but have fixed shape.
Correct answer: False
Correct Statement: Liquids have fixed volume but have no fixed shape.
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3. Particles in solids are free to move
Correct answer: False
Correct Statement: Particles of solid cannot move have freely (or) particles of liquid are free to move
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4. When pulses are washed with water before cooking, the water is separated from them by the process of filtration
Correct answer: False
Correct Statement: When pulses are washed with water before cooking, the water is separated from them by the process of decantation.
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5. Strainer is a kind of sieve which is used to separate a liquid from solid
Correct answer: Ture
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6. Grain and husk can be separated by winnowing
Correct answer: Ture
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7. Air is a pure substance
Correct answer: False
Correct Statement: Air is a mixture of gases.
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8. Butter from curds is separated by sedimentation.
Correct answer: False
Correct Statement: Butter from curd is separated by Churning
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1. Breaks easily ( brittle)
Correct answer: Mud pot
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2. Bends readily
Correct answer: Plastic wire
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3. Can be stretched easily
Correct answer: Rubber band
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4. Gets compressed easily
Correct answer: Cotton wool
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5. Gets heated readily
Correct answer: Metal pan
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1. Separation of visible undesirable components
Correct answer: Rice and stone - Hand-picking
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2. Separating of heavier and lighter components
Correct answer: Husk and paddy - Winnowing
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3. Separation of insoluble impurities
Correct answer: Water mixed with chalk powder - Filtration
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4. Separation of magnetic component from non- magnetic components
Correct answer: Iron impurities - magnetic separation
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5. Separation of solids from liquids
Correct answer: Sand and water - decantation
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1. Separation of visible undesirable components
Correct answer: rice and stone
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2. Separating of heavier and lighter components
Correct answer: husk and paddy
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3. Separation of insoluble impurities
Correct answer: water mixed with chalk powder
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4. Separation of magnetic component from non- magnetic components
Correct answer: iron impurities
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5. Separation of solids from liquids
Correct answer: sand and water
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1. Matter is made up of ______
Correct answer: Atoms
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2. In solids, the space between the particles is less than in ______-
Correct answer: liquids and gases
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3. Grains can be separated from their stalks by______
Correct answer: Threshing
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4. Chillies are removed from upma by____method
Correct answer: Handpicking
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5. The method employed to separate clay particles from water is_____
Correct answer: Filtration
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6. Among the following items: safety pins, pencil and rubber band,_____will get attracted to a magnet
Correct answer: Safetypins
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7. Water obtained from tube wells is usually______-water
Correct answer: impure
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1. Solid: rigidity:: gas:_____
Correct answer: flexibility
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2. Large Inter-particle space: gas::_____:solid
Correct answer: Little inter-particle space
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3. Husk-grains: winnowing:: SawdustChalk piece:_____
Correct answer: Filtration
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4. Murukku from hot oil:_____ : coffee powder residue from decoction
Correct answer: Filtration
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5. Iron sulphur mixture : ____________: Mustard seeds from Urad-dhal: rolling
Correct answer: magnetic separation