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    Chapter 1:Food Does It Come From

    Chapter 2:Component Of Food

    Chapter 3:Fibre to Fabric

    Chapter 4:Sorting Materials and Group

    Chapter 5:Separation of substance

    Chapter 6:Change Around Us

    Chapter 7:Getting to know Plants

    Chapter 8:Body Movement

    Chapter 9:The Living Oraganisms and Their Surroundings

    Chapter 10:Motin and Measurement of Distances

    Chapter 11:Light,Shadows and Reflections

    Chapter 12:Electric and Circuits

    Chapter 13:Fun with Magnets

    Chapter 14:Water

    Chapter 15:Air Around Us

    Chapter 16:Garbage in, Garbage Out

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    Class 6 · Chapter 6

    NCERT Solutions for Class 6 Science Chapter 6 – Changes Around Us

    Review every NCERT question with simple explanations and chapter diagrams.

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    Explore our comprehensive NCERT Solutions for Class 6 Science Chapter 6: Changes Around Us. This chapter focuses on different types of changes, including physical and chemical changes, and the factors that lead to these transformations. Our well-structured answers help students grasp the significance of these changes in nature and everyday life. Perfect for reinforcing classroom lessons and exam readiness, these solutions provide clarity on complex concepts.

    Question 1
    To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
    Answer 1
    Yes, we can reverse this change by unfolding the dress .

    Question 2
    You accidentally dropped your favourite toy and broke it. This is a change you did not want. Can this change be reversed?
    Answer 2
    No, it cannot be reversed. It is an irreversible change.

    Question 3
    Some changes are listed in the following table. For each change, write in the blank column, whether the change can be reversed or not.
    S. No. Change Can be reversed (Yes/ No)
    1 The sawing of a piece of wood
    2 The melting of ice candy
    3 Dissolving sugar in water
    4 The cooking of food
    5 The ripening of a mango
    6 Souring of milk
    Answer 3
    S. No. Change Can be reversed (Yes/ No)
    1 The sawing of a piece of wood No
    2 The melting of ice candy Yes
    3 Dissolving sugar in water Yes
    4 The cooking of food No
    5 The ripening of a mango No
    6 Souring of milk No

    Question 4
    A drawing sheet changes when you draw a picture on it. Can you reverse this change?
    Answer 4
    It may be reversible and irreversible depends on situations
    (a) if we draw with the help of pencil, we can erase the drawing by using an eraser. Then, it is a reversible change. (b)If we draw using a pen, we cannot erase the drawing. Then it is irreversed.
    Question 5
    Give examples to explain the difference between changes that can or cannot be reversed.
    Answer 5

    Examples of Reversible Changes:
    a) Melting is when solid converts into a liquid after heating
    b) Boiling is when a liquid converts into a gas
    c) Melting of Ice into water. By freezing the water we can obtain ice again.
    d) Folding a paper: By unfolding it, we can undo the change.
    e) Hot milk to cold milk: By boiling milk, we can make it warm.

    Examples of Irreversible Changes:
    a) Cutting a wood into wood peices
    b) Cooking of food
    c) Bursting a balloon.
    d) Bud to flower
    d) Rusting of iron

    Question 6
    A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilized. Can the change in POP be reversed?
    Answer 6
    When we added water in paste of Plaster of Paris , it undergoes a chemical change.Since in chemical change composition converted into another substance. So, it is cannot be reversed.

    Question 7
    A bag of cement lying in the open gets wet due to rain during the night. The next day the sun shines brightly. Do you think the changes, which have occurred in the cement, could be reversed?
    Answer 7
    Beacuse of water cement get hardens and its composition changes means it undergoes a chemical change. Chemical changes, are irreversible changes. So, cannot be reversed.

    Our NCERT Solutions for Class 6 Science Chapter 6 offer essential insights into various changes in matter and their implications. Continue your journey through our other chapters and educational resources to build a solid foundation in science.