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प्रश्न
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.
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उत्तर
Examples of reversible changes.
- Melting of wax
- Folding of a paper
- Inflating a tyre or balloon
- Knitting of a sweater
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संबंधित प्रश्न
Long Answer Type Question:
How does curd being set? Is this change reversible?
Magnet attracts iron needle.This is ______ change.
When a candle is lit the following changes are observed.
- Wax melts.
- Candle keeps burning.
- The size of the candle decreases.
- The molten wax solidifies
- Which of the changes can be reversed? Justify your answer
To walk through a waterlogged area, you usually shorten the length of your dress by folding it. Can this change be reversed?
The burning of the paper is an irreversible change.
What are irreversible changes?
The blackening of the Silver anklet is a (an) ______.
Touch me not plant: ______:: digestion of food: Irreversible change.
Paheli mixed flour and water and
- made a dough,
- rolled the dough to make a chapati,
- baked the chapati on a pan,
- dried the chapati and ground it in a grinder to make powder.
Identify the changes (i) to (iv) as the changes that can be reversed or that cannot be reversed.
Find the odd one out and give reason for your choice.
