Answers

2016-02-22T21:42:52+05:30
The heat of the candle moves upwards. so it is hot in the top.
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2016-02-26T15:22:33+05:30
Hot air is very light and has less density compared to cool air.
So when the candle flame heats up the air around the hot air rises up but not to the sides.
that is why you're hand burns when place above the candle flame and not beside it.
hope this answer helps you.
good luck
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