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Question
To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
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Solution
Yes. The length of the dress can again be increased by unfolding it. Hence, this change can be reversed.
RELATED QUESTIONS
Long Answer Type Question:
How does curd being set? Is this change reversible?
Magnet attracts iron needle.This is ______ change.
When ‘Touch me not’ plant is touched by us, ______ changes occur.
Touch me not plant: ______:: digestion of food: Irreversible change.
Look at the figure which shows three situations.
Which of these shows a reversible change and why?
Can we reverse the following change? If yes, suggest the name of the method.
Ice into water
Which of the following changes cannot be reversed?
- Blowing of a balloon
- Folding paper to make a toy aeroplane
- Rolling a ball of dough to make roti
- Baking cake in an oven
- Drying a wet cloth
- Making biogas from cow dung
- Burning of a candle
Boojho’s sister broke a white dove, a symbol of peace, made of Plaster of Paris (POP). Boojho tried to reconstruct the toy by making a powder of the broken pieces and then making a paste by mixing water. Will he be successful in his effort? Justify your answer.
Tearing of paper is said to be a change that cannot be reversed. What about paper recycling?
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.
