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Comparing the burning speed of scented and unscented candlesFeatured science projectScience project video

Observation

The length of candle that was burned in 30 minutes is almost the same for all 3 types of candles. All candles became shorter by 25 to 30 mm in 30 minutes. The average length of candle burned was around 27mm.

Candle type

Average length of candle burned in 30 minutes (mm)

Average (mm)

1

2

3

4

5

Apple scent

28

27

29

25

27

27.20

Rose scent

29

27

25

28

29

27.60

Unscented

29

28

27

27

26

27.40

Use the graph below to plot the results above.

scented candles burning rate science project

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Complexity level:
6
Project cost ($):
30
Time required:
1 hour to prepare, 1 hour for the science project experiment
Material availability:
Easily found. Candles can be purchased at a supermarket or department store.
Safety concerns:

Be careful when handling fire. Ensure that the experiment is conducted in a well-ventilated laboratory or in a safe location, with no flammable materials lying around. Adult assistance is required.