Candle Experiment

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Predict which candle will burn the longest


2 different sized candles and 2 differnet sized jars with lids


Put a small candle or night light into a large jar, the same size candle into a small jar and a larger candle into a small and large jar. Place each of the 4 jars on a table in each corner of the room. Beavers/Cubs need to predict which candle will burn the longest based on the size of flame and the amount of air in the jar. They go over to the table with the candle that they predict will burn the longest. Adults then light each candle and put the lids on at the same time and wait to see which candle goes out first. Beavers/Cubs are basing their predictions on the fact that the largest jar and smallest flame will use up the air the slowest.


  • candles
  • experiment

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  • Creative - Problem solving
  • Experiment - Explain
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  • Experiment - Predict