Chemistry Change Around Us Part 3 (Paper planes, Broken eggs, Dancing) Class 6 VI | Summary and Q&A

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March 21, 2016
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Chemistry Change Around Us Part 3 (Paper planes, Broken eggs, Dancing) Class 6 VI

TL;DR

This video discusses various examples of reversible and irreversible changes, including folding paper, dancing, breaking glass, tearing newspaper, and breaking an egg.

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Questions & Answers

Q: What is an example of a reversible change with paper?

Folding a piece of paper into a plane is an example of a reversible change because you can unfold it and regain the paper.

Q: Why is dancing considered a reversible change?

Dancing involves constant changes in body movements, but these changes can be reversed as you can return to the original posture or position.

Q: Is breaking glass a reversible or irreversible change?

Breaking glass is an irreversible change in the short run because you cannot instantly join the pieces back together. However, in the long run, the glass pieces can be collected and used to create new glass bottles, making it reversible.

Q: Can tearing a newspaper be considered a reversible change?

Tearing a newspaper is an irreversible change in the instant run because you cannot easily join the pieces back together. However, small pieces of paper can be collected and eventually used to create a larger piece of paper, making it reversible in the long run.

Summary & Key Takeaways

  • The video provides examples of reversible changes, such as folding paper into a plane and unfolding it back into paper.

  • It also explains how dancing involves reversible changes in body movements.

  • The video discusses irreversible changes, like breaking glass, tearing newspaper, and breaking an egg.

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