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प्रश्न
Can we reverse the following change? If yes, suggest the name of the method.
Ice into water
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उत्तर
Yes, water can be converted to ice by freezing.
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संबंधित प्रश्न
Very Short Answer Type Question:
Give two examples of irreversible changes.
Circle the odd one.
Circle the odd one.
Formation of curd from milk is
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
What are reversible changes?
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.
Water vapour into water
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.
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.
