### Present Remotely

Send the link below via email or IM

• Invited audience members will follow you as you navigate and present
• People invited to a presentation do not need a Prezi account
• This link expires 10 minutes after you close the presentation

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.

# combustion

No description
by

## Megan Dunn-O'Brien

on 24 July 2013

Report abuse

#### Transcript of combustion

What happens to the combustion of a candle when lit and contained in different beakers of different volumes?
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.
My Progress
To show how the investigation went i made a table showing what I'd done so far.
Results
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

100ml

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)

Volume of
beakers (ml)

Test 1

Test 2

Test 3

Avg

100

4.56

4.29

5.21

4.69

250

11.23

9.64

12.78

11.21

400

21.65

22.98

23.65

22.76

600

41.87

43.29

41.04

42.10

1000

60

59.44

58.37

59.27

As you can see each bar icreases by almost double the previous bar proving that the hypothesis is in fact correct.
Conclusion!
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.
Full transcript