Explain why candle flame burns in only straight.
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bec flame can only burn straigt
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When a candle burns, the flame heats the nearby air and starts to rise. As this warm air moves up, cooler air and oxygen rush in at the bottom of the flame to replace it. When that cooler air is heated, it too rises up and is replaced by cooler air again. This creates a continual cycle of upward moving air around the flame, which gives the flame a teardrop shape. Basically the continuous movement of hot air going up displaces cooler air down to the side which then gets heated up again and move upwards causing the distinctive shape of the flame and which is why it points only upwards.
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