हिंदी

Paheli had bought a new bottle of pickle from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water - Science

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प्रश्न

Paheli had bought a new bottle of pickle from the market. She tried to open the metal cap to taste it but could not do so. She then took a bowl of hot water and immersed the upper end of the bottle in it for five minutes. She could easily open the bottle now. Can you give the reason for this?

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उत्तर

On immersing in hot water, the metal cap expands in size hence it can be removed easily.

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

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एनसीईआरटी एक्झांप्लर Science [English] Class 6
अध्याय 6 Changes Around Us
Very Short Answer Questions | Q 10. | पृष्ठ ३४

संबंधित प्रश्न

Short Answer Type Question:
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Rolling of chapati and baking of chapati are the changes that ______.


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.

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Give one example of change occurs on mixing two substances, but can 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.
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  5. Her father made dough balls.
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  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.


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