Chemistry Air Around Us Part 9 (Oxygen helps burning) Class 6 VI | Summary and Q&A

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April 12, 2016
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Chemistry Air Around Us Part 9 (Oxygen helps burning) Class 6 VI

TL;DR

Burning cannot happen without oxygen as it is necessary for the process to take place.

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Questions & Answers

Q: Why is oxygen important for burning?

Oxygen is necessary for burning because it is the primary supporter of the combustion process. It reacts with the fuel to produce heat and light.

Q: What happens when a candle is covered with a glass?

When a candle is covered with a glass, the available air inside the glass becomes limited. The candle continues to burn until the oxygen supply is exhausted, causing it to go out.

Q: Why did the candle covered with a smaller glass go out earlier?

The candle covered with a smaller glass went out earlier because there was less air (and therefore less oxygen) available. The limited oxygen supply was consumed quickly, leading to the candle's extinction.

Q: What was observed in the experiment?

The experiment showed that the candle covered with a larger glass lasted longer, while the candle covered with a smaller glass went out earlier. This demonstrated the importance of oxygen availability in the burning process.

Summary & Key Takeaways

  • Oxygen is essential for burning to occur, as it provides the necessary air for combustion.

  • The video demonstrates an experiment with candles and glasses, showing that the candle covered with less air (smaller glass) burned out earlier due to limited oxygen supply.

  • The experiment concludes that air (including oxygen) is required for the burning process.

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