Q. 34.6( 95 Votes )
Some changes are listed in the following table. For each change, write in the blank column whether the change can be reversed or not.
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To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?NCERT Science
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.NCERT Science
Some changes are listed in the following table. For each change, write in the blank column whether the change can be reversed or not.NCERT Science
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?NCERT Science
You accidentally dropped your favourite toy and broke it. This is a change you did not want. Can this change be reversed?NCERT Science
Iron rim is made slightly smaller than the wooden wheel. The rim is usually heated before fixing into the wooden wheel, because on heating the iron rimNCERT - Science Exemplar
Rolling of chapatti and baking of chapatti are the changes thatNCERT - Science Exemplar
While lighting a candle, Paheli observed the following changes
(i) Wax was melting.
(ii) Candle was burning.
(iii) Size of the candle was reducing.
(iv) Melted wax was getting solidified.
Of the above, the changes that can be reversed areNCERT - Science Exemplar
Pick the change that can be reversed from the followingNCERT - Science Exemplar