NCERT Class 6 Science Chapter 5 Separation of Substances
We offer a convenient and educational resource: NCERT Solutions for Class 6 Science Chapter 5, "Separation of Substances," available for free PDF download. This valuable resource equips students with the skills to tackle a variety of questions pertaining to methods of separating substances.
Download the NCERT Solutions for Separation of Substances in PDF
Separation of Substances
Frequently Asked Questions
Q1 Can the NCERT Solutions for Class 6 Science Chapter 5 be considered the repository of important questions?
We at Orchids The International School, provide a set of important questions with solutions based on the latest CBSE guidelines. The answers are compiled in the form of a PDF which can be accessed by the students anywhere and at any time. The subject matter experts having vast knowledge about the respective concepts, frame the solutions to help students ace the exam. The solutions contain explanations in simple language which boost the confidence among students in answering complex questions efficiently.
Q2 What are the benefits of referring to the NCERT Solutions for Class 6 Science Chapter 5?
Students who solve the textbook questions referring to the NCERT Solutions for Class 6 Science Chapter 5 find it really helpful during the exams. The solutions are prepared by the experts in an interactive manner which enables students to have a better understanding of the important concepts. Through regular practice, students will be able to analyse the type of questions that would appear in the Class 6 exams. The solutions help students to complete the syllabus on time and also focus on revision a couple of months prior to the exam.
Q3 What are the important concepts covered in Chapter 5 of NCERT Solutions for Class 6 Science?
The important concepts covered in Chapter 5 of NCERT Solutions for Class 6 Science are
Methods of separation
Hand-picking
Winnowing
Threshing
Sieving
Sedimentation, Decantation and Filtration
Evaporation
Use of more than one method of separation
Can water dissolve any amount of a substance?
To understand these concepts in a better way, students can refer to the NCERT Solutions created by the faculty at Orchids The International School. The PDF format of solutions is available, which can be downloaded and used by the students based on their needs.
What is winnowing? Where is it used?
The method of separating the components from a mixture is known as winnowing. In this method, heavier and lighter components of a mixture are separated by wind or by blowing air. This method is used by farmers to separate lighter husk particles from heavier seeds of grain.
How will you separate sand and water from their mixture?
Sand and water are separated from their mixture by the following steps:
a) The mixture is allowed to stand without any disturbances.
b) Now, sand settles down.
c) Slowly pour the water into another container to obtain sand in the bottom.
How will you separate husk or dirt particles from a given sample of pulses before cooking?
Husk and dirt particles are separated from pulses by winnowing.
What is sieving? Where is it used?
Sieving is a method in which fine particles are sieved through holes in the sieve while the bigger impurities remain on the sieve. Sieving is used in a flour mill to separate impurities like husk and stones from wheat before grinding it. It is also used at construction sites to separate pebbles and stones from sand.
Why do we need to separate different components of a mixture? Give two examples.
When two or more substances are mixed together, they form a mixture. Components of a mixture should be separated because some components may not be useful or may spoil the useful component of the mixture.
Examples:
Tea leaves are separated from the liquid with a strainer while preparing tea.
Removal of stone pieces from wheat, rice or pulses by hand.
Is it possible to separate sugar mixed with wheat flour? If yes, how will you do it?
Yes, it is possible to separate sugar mixed with wheat flour by the following method:
a) Mix sugar and wheat flour in water.
b) Stir the solution to allow the sugar to dissolve.
c) Now, filter the mixture.
d) Filtrate contains the sugar solution, and the residue will be wheat flour.
How would you obtain clear water from a sample of muddy water?
The following process should be carried out to obtain clear water from muddy water:
i) Allow muddy water to stand.
ii) Mud gets settled down in the water.
ii) Slowly pour water into another container.
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.
a) False
b) False
c) False
d) False
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?
Ice should be added to lemonade after dissolving sugar. It is possible to add more sugar before adding ice.
Fill in the blanks.
(a) The method of separating the 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) The method of separating the seeds of paddy from its stalks is called threshing.
(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 filtration.
(c) Salt is obtained from seawater by the process of evaporation.
(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 decantation.
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