Candle Trick fire a candle with out touching."When you blow out a candle, you notice a stream of white smoke leaving the wick. This stream is paraffin vapor that has condensed into a visible form. It continues to form as long as the wick is hot enough to vaporize paraffin. If you touch a lit match to the stream, a flame will run down it and re-light the wick."paraffin vapor is very flameable