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VGS PUBLICATION-BRILLIANT-COMBUSTION , FUELS AND FLAME-EXERCISE
- The lowest temperature at which a substance catches fire is called its
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- The unit of calorific value
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- Spirit and petroleum turns into gas at
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- The type of combustion in which material suddenly burns into flames wi...
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- Why does candle give flame when it is burnt but why does coal burn wit...
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- Do all fuels produce same amount of heat when they are burnt?
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- What do we need to burn a material?
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- Have you observed material used to make school bell or bells in temple...
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- Name the three meninges. In which group of animals do you find all of ...
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- What do we need to burn a material?
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- Can we burn a material in the absence of air?
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- Why does a scented stick with burning stub does not catch fire when it...
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- Why does a scented stick with burning stub does not catch fire when it...
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- A slow fire bursts into a flame when air is blown on it, but a candle ...
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- If a large quantity of dry grass is set on fire in forests then it is ...
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- When an object catches fire, the fire is put off by covering with sand...
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- What makes match sticks to catch fire?
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- What is calorific value? Write its units
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- How can we put off the fire if it breaks out?
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- Why the fire brigade start the work by putting off the electric mains?
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