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तमिलनाडु बोर्ड ऑफ सेकेंडरी एज्युकेशनएसएसएलसी (अंग्रेजी माध्यम) कक्षा ६

When a candle is lit the following changes are observed. Wax melts. Candle keeps burning. The size of the candle decreases.

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प्रश्न

When a candle is lit the following changes are observed.

  1. Wax melts.
  2. Candle keeps burning.
  3. The size of the candle decreases.
  4. The molten wax solidifies
  5. Which of the changes can be reversed? Justify your answer
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उत्तर

  1. Wax melting is a reversible change.
  2. “The molten wax solidifies” is a reversible change.

These two changes can be reversible to get back to the original state. So the above two changes are reversible changes.

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अध्याय 3: Changes Around Us - Evaluation [पृष्ठ ४०]

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सामाचीर कलवी Science - Term 2 [English] Class 6 TN Board
अध्याय 3 Changes Around Us
Evaluation | Q IX. | पृष्ठ ४०

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