NCERT Exemplar Class 6 Science Chapter 5 Solutions: Separation of Substances

NCERT Exemplar Class 6 Science Solutions Chapter 5 ‘Separation of Substances’ is included in the latest CBSE syllabus to help you understand the need for separation of substances and various techniques used for the same. There are a total of 4 exercises that have 20 questions based on the various topics of Chapter 5 of CBSE NCERT Exemplar Class 6 Science

In Chapter 5, we will study about churning the milk to separate butter, filtration of tea using a strainer or separation of grains from stalks. The simple methods of separation that are described in Chapter 5 are handpicking, threshing, winnowing, sieving, sedimentation, decantation, and filtration. In NCERT Exemplar Class 6 Science Chapter 5 it is also explained how evaporation and condensation can be used to separate certain mixtures. 

The chapter also discusses in detail the necessity of simple methods of separation in our day to day lives. At Instasolv, our subject matter experts have prepared exercise-wise detailed solutions. In NCERT Exemplar Solutions for Chapter 5 Separation of Substances, we have not just given the solutions to the exercises but also tried to explain the small details of the chapter in pointers to help you grasp the concept of separation of substances in an easier way.

Salient Points of NCERT Exemplar Class 6 Science Chapter 5 (Separation of Substances)

Separation of Substances: Chapter Introduction

  • We cannot pick grains from fields like we pick fruits, given their large quantities and small size. Therefore, for the separation of such complex mixtures, we employ other methods of separation.
  • We need separation because of the following reasons:
    1. To separate two different, but useful components.
    2. To remove non-useful components.
    3. To remove impurities or harmful components.
  • There are various methods of separation. In Chapter 5 of NCERT Exemplar Class 6 Science, we are discussing some simple methods of separation that can be observed by you in your day to day life.

The methods of separation discussed below: 


The impurities in the grains of rice, wheat or pulses are generally handpicked. The impurities have to be slightly in large sizes and should be present in small amounts to employ the process of handpicking for separation.


The grains of crops being in large numbers cannot be plucked and hence, are beaten after being dried in the sun to separate the grains from the stalks. Threshing can be done by manual labour, bullocks, and machines.


Winnowing is the process when a mixture is of two components of different weights. The heavier component is separated from the lighter component by dropping it in front of blowing air. The heavier components fall closer while the lighter components are blown away by the wind such as husk that can be used as fodder for cattle.


Fine particles of a mixture can be separated from bigger impurities by passing it through the holes of a sieve. This method is known as sieving.

Sedimentation, Decantation & Filtration

When the heavier particles settle down in the water, it is called Sedimentation. Decantation is the process of separating the top layer of fluid once the mixture is left quiet to segregate. Filtration is the process when the fluid is passed through filter paper or strainer in some cases.

Evaporation is used to obtain salts from seawater. A solution becomes saturated when no more solvent can be dissolved in it.

In some cases, more than one method of separation is needed to be used to achieve the desired result. For instance, if we have to separate a mixture of flour and salt and not enough water is added for the salt to dissolve, the solution will become saturated and the method of separation that we employ would not remain productive.

Exercise Discussion of NCERT Exemplar Class 6 Science Solutions Chapter 5

  • The questions of NCERT Class 6 Exemplar Chapter 5 are made so as to cater to all your needs related to the theory and concepts of ‘Separation of Substances’ 
  • The solutions prepared are based on the latest syllabus approved by CBSE 
  • You will find a complete comprehensive solution to each question of Chapter 5 
  • You will find assistance at Instasolv with the exercise questions in the NCERT Exemplar solutions to memorize the chapter better and have a better perception of the Chapter ‘Separation of Substances’.

About CBSE NCERT Exemplar Class 6 Science Solutions Chapter 5

  • The team of Subject Matter Experts at Instasolv have prepared the Solutions in simple and precise language to help you make the best of your time and therefore also perform well in your CBSE exams.
  • At Instasolv, it is a priority to make the exemplary solutions as interactive as possible to engage your mind with absolute interest.
  • The primary concern at Instasolv is to address the maximum questions of the students in the simplest manner.
  • Instasolv teaches you how to prepare smart for each topic of Chapter 5
  • We have curated the solutions taking into account the doubts asked by many students and hence, it is a well-researched set of solutions.

Hence, chapter 5 of NCERT Solutions & NCERT Exemplar Class 6 Science helps you build a strong base of understanding of the notions of Science regarding the ‘Separation of Substances’ to prepare you for the Subject of the higher classes.