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I did this experiment at home-Light your candle, and allow it to burn for 1 minute. -Quickly lower a white 3" x 5" index card (held horizontally) down into the candle flame. -Hold the card in this position until the upper side of the card begins to scorch, but not until it catches on fire. Hold it steady. -If it does catch on fire, place the burning index card in a beaker, and try again with a new card. -Note the scorch pattern on top of the card. Source: ...sorry, you cannot view external links. To see them, please
REGISTER or LOGINI see the scorch pattern, but I dont kno how to explain why is it happened ... can you explain to me or give me any hints please, thank you