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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ५

What is reversible change? - Science

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प्रश्न

What is reversible change?

एक पंक्ति में उत्तर
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उत्तर

Changes which can be reversed are called reversible change.
Eg: melting of ice.

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अध्याय 4: Science in Everyday Life - Evaluation [पृष्ठ १३८]

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सामाचीर कलवी Science - Term 1 [English] Class 5 TN Board
अध्याय 4 Science in Everyday Life
Evaluation | Q V. 2. | पृष्ठ १३८

संबंधित प्रश्न

Match the following.

Bud to flower Dr. A.P.J. Abdul Kalam
Reversible change Recyclable waste
India 2020 Organic waste
Paper Melting of ice
Vegetables Irreversible change

Which is reversible change?


Pick the change that can be reversed from the following.


Look at the figure which shows three situations.

Which of these shows a reversible change and why?


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.


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


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


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.


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


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