मराठी

Can we reverse the following change? If yes, suggest the name of the method. Water into water vapour - Science

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प्रश्न

Can we reverse the following change? If yes, suggest the name of the method.

Water into water vapour

एका वाक्यात उत्तर
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उत्तर

Yes, by condensation water vapour can be converted to water.

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पाठ 6: Changes Around Us - Short Answer Questions [पृष्ठ ३४]

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एनसीईआरटी एक्झांप्लर Science [English] Class 6
पाठ 6 Changes Around Us
Short Answer Questions | Q 11. (a) | पृष्ठ ३४

संबंधित प्रश्‍न

Circle the odd one.


Analogy

Dissolution of glucose : reversible change :: Digestion of food: ___________ change


Dissolving sugar in water is a ______ change.


Can we reverse the following change? If yes, suggest the name of the method.

Curd into milk


Give one example of change which occurs on mixing two substances, but cannot be reversed.


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.


Change of a bud into a flower is a change which cannot be reversed. Give four more such example.


Paheli mixed flour and water and

  1. made a dough,
  2. rolled the dough to make a chapati,
  3. baked the chapati on a pan,
  4. 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.


lt was Paheli’s birthday, her brother Simba was helping her to decorate the house for the birthday party and their parents were also busy making other arrangements. Following were the activities going on at Paheli’s home:

  1. Simba blew balloons and put them on the wall.
  2. Some of the balloons got burst.
  3. Paheli cut colourful strips of paper and put them on the wall with the help of tape.
  4. She also made some flowers by origami (paper folding) to decorate the house.
  5. Her father made dough balls.
    Mother rolled the dough balls to make puries.
  6. Mother heated oil in a pan.
  7. Father fried the puries in hot oil.

Identify the activities at Paheli’s home as those that can be reversed and those which cannot be reversed.


Choose the odd one out. Give a reason for your choice.


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