Class 6 Science - Chapter Separation of Substances NCERT Solutions | Fill up the blanks (a) The method of se
Fill up the blanks
(a) The method of separating seeds of paddy from its stalks is called ___________.
(b) When milk, cooled after boiling, is poured onto a piece of cloth the cream (malai) is left behind on it. This process of separating cream from milk is an example of ___________.
(c) Salt is obtained from seawater by the process of ___________.
(d) Impurities settled at the bottom when muddy water was kept overnight in a bucket. The clear water was then poured off from the top. The process of separation used in this example is called ___________.
(a) Threshing
Threshing is the method of separation which is used to separate the grains from the stalk of the plant. In this method, stalks are beaten on the hard surface like drum or it can also be done by machines.
(b) Filtration
Filtration is the method of separation which is used to separate pure solution from the impure ones or from the larger particles.
(c) Evaporation
It is the process in which water evaporates from the sea water or we can say water converts into vapours.
(d) Decantation
Decantation is the method of separating two immiscible components from each other.
More Questions From Class 6 Science - Chapter Separation of Substances
- Q:-
True or false?
(a) A mixture of milk and water can be separated by filtration.
(b) A mixture of powdered salt and sugar can be separated by the process of winnowing. (c) Separation of sugar from tea can be done with filtration.
(d) Grain and husk can be separated with the process of decantation. - Q:-
Is it possible to separate sugar mixed with wheat flour? If yes, how will you do it?
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Lemonade is prepared by mixing lemon juice and sugar in water. You wish to add ice to cool it. Should you add ice to the lemonade before or after dissolving
sugar? In which case would it be possible to dissolve more sugar? - Q:-
How will you separate sand and water from their mixture?
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How would you obtain clear water from a sample of muddy water?
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What is sieving? Where is it used?
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How will you separate husk or dirt particles from a given sample of pulses before cooking.
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What is winnowing? Where is it used?
- Q:-
Why do we need to separate different components of a mixture? Give two examples.
Popular Questions of Class 6 Science
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(a) Which kind of garbage is not converted into compost by the redworms?
(b) Have you seen any other organism besides redworms, in your pit? If yes, try to find out their names. Draw pictures of these. - Q:-
Rearrange the boxes given below to make a sentence that helps us understand opaque objects.
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Do you find that all living beings need the same kind of food?
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Name the major nutrients in our food.
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nylon, wool, cotton, silk, polyester, jute - Q:-
Name five objects which can be made from wood.
- Q:-
Correct the following statements and rewrite them in your notebook.
(a) Stem absorbs water and minerals from the soil.
(b) Leaves hold the plant upright.
(c) Roots conduct water to the leaves.
(d) The number of petals and sepals in a flower is always equal.
(e) If the sepals of a flower are joined together, its petals are also joined together.
(f) If the petals of a flower are joined together, then the pistil is joined to the petal. - Q:-
Fill in the blanks:
(a) Joints of the bones help in the ——————— of the body.
(b) A combination of bones and cartilages forms the _______ of the body.
(c) The bones at the elbow are joined by a ______________________ joint.
(d) The contraction of the _____________ pulls the bones during movement. - Q:-
What is a habitat?
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To clean their spectacles, people often breathe out on glasses to make them wet. Explain why the glasses become wet.
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Indicate true (T) and false (F) among the following sentences.
(a) The movement and locomotion of all animals is exactly the same. ( )
(b) The cartilages are harder than bones. ( )
(c) The finger bones do not have joints. ( )
(d) The fore arm has two bones. ( )
(e) Cockroaches have an outer skeleton. ( ) - Q:-
Fill up the blanks
(a) The presence of specific features, which enable a plant or an animal to live in a particular habitat, is called .
(b) The habitats of the plants and animals that live on land are called habitat.
(c) The habitats of plants and animals that live in water are called habitat.
(d) Soil, water and air are the ———— factors of a habitat.
(e) Changes in our surroundings that make us respond to them, are called . - Q:-
Name two flowers, each with joined and separated sepals.
- Q:-
Match the items in Column I with one or more items of Column II.
Column I Column II
Upper jaw have fins on the body
Fish has an outer skeleton
Ribs can fly in the air
Snail is an immovable joint
Cockroach protect the heart
shows very slow movement
have a streamlined body - Q:-
In a completely dark room, if you hold up a mirror in front of you, will you see a reflection of yourself in the mirror?
- Q:-
What is the composition of air?
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