Reversible and irreversible changes — task. Physics CBSE Live product, Class 7 (2026-27).

Choose the correct answer:

1. Which of the following is an irreversible change?

Stretching a rubber band
Freezing water
Making popcorn
Melting ice

2. Which of the following is NOT a reversible change?

Stretching a rubber band
Breaking a glass bottle
Melting candle wax
Folding a shirt

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