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प्रश्न
A potter working on his wheel shaped a lump of clay into a pot. He then baked the pot in an oven. Do these two acts lead to the same kind of changes or different? Give your opinion and justify your answer.
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उत्तर
The two acts lead to the different kind of changes. Shaping of pot on a wheel is a physical, reversible change while baking the pot in an oven is an irreversible change.
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संबंधित प्रश्न
Differentiate reversible and irreversible changes.
Analogy
Curdling of milk : irreversible change :: Formation of clouds : ________change
Dissolving sugar in water is a ______ change.
What are reversible changes?
When ‘Touch me not’ plant is touched by us, ______ changes occur.
Salt can be separated from its solution (salt dissolved in water), because ______.
Can we reverse the following change? If yes, suggest the name of the method.
Water into water vapour
Conversion of ice into water and water into ice is an example of change which can be reversed. Give four more examples where you can say that the changes can be reversed.
Change of a bud into a flower is a change which cannot be reversed. Give four more such example.
Choose the odd one out. Give a reason for your choice.
