हिंदी

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

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प्रश्न

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

अति संक्षिप्त उत्तर
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उत्तर

Examples of irreversible changes.

  1. Milk into curd
  2. Burning of wood
  3. Ripening of fruits
  4. Digestion of food
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अध्याय 6: Changes Around Us - Long Answer Questions [पृष्ठ ३६]

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एनसीईआरटी एक्झांप्लर Science [English] Class 6
अध्याय 6 Changes Around Us
Long Answer Questions | Q 18. | पृष्ठ ३६

संबंधित प्रश्न

Very Short Answer Type Question:
Some common changes are given in the below Table. Which of these changes do you think can be reversed?

Change Can be reversed
(i) Raw egg to boiled egg Yes/No
(ii) Batter to idli  
(iii) Wet clothes to dirty clothes  
(iv) Woollen yarn to knitted sweater  
(v) Grain to its flour  
(vi) Cold milk to hot milk  
(vii) straight string to a cold string  
(viii) Bud to flower  
(ix) Milk to paneer  
(x) Cow dung to biogas  
(xi) stretched rubber band to its normal size  
(xii) Melting of ice-cream  

An example for reversible change is


Circle the odd one.


Analogy

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


Touch me not plant: ______:: digestion of food: Irreversible change.


Which of the following change 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.


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


 Select the odd one out. Give reason for your the choice


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


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