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Transcript of combustion
I investigated the hypothesis "that the time taken for the candle flame to extinguish depends on the air available" could be proven or linked in with my investigation.
To show how the investigation went i made a table showing what I'd done so far.
Volume of beaker
Plaster sine – covers the lip of the glass beaker in order to stop any excessive oxygen to seep in.
Candle – is needed to help prove the hypothesis
Stop clock – times how long it takes for the candle to extinguish.
Glass beaker - Contains the volume of oxygen needed to test how long the candle can combust.
What I did
We used 5 glass beakers (100ml,250ml,400ml,600ml,& 1000ml) and what we did was place a candle under a glass beaker once it was lit and we tested how long the candle would stay lit.
We repeated this method 3 times with each
beaker using the same candle .
This was the hypothesis I was given when I was planning for the investigation.
Was the investigation successful?
Time taken for flame to extinguish (secs)
As you can see each bar icreases by almost double the previous bar proving that the hypothesis is in fact correct.
I have come to the conclusion that the combustion of the candle is affected due to the amount of oxygen that is available and that the hypothesis was proven.