Candle trials.

Candle trials

•       You light the candle (That will be sitting in a container with two cm of water.)

•       You place the jar over the candle and start the stopwatch. You must record the time accurately.

The flame of the candle will use up all of the air in the jar. This will allow the water to override the jar and take the oxygen’s place.

You then stop the stopwatch and check the time. Previously you will have made an estimate of the average time.

The bigger the candle (and jar) are the longer it will take the water to knock down the candle, because the bigger the candle the stronger the candle.