digital ( ounces\grams ) scale, area without drafts or
disturbances (preferably with table),
wood matches, small candle, (optional, for lighting
candles), watch, aluminum foil.
1. Take 3 candles, 1 with a 2-inch diameter, 1 with a
3-inch diameter, and 1 with a 4-inch diameter,
and put them on pieces of aluminum foil.
2. Weigh the candles with the foil, but weigh each candle separately
from the other candles. Write down the weights.
3. Put the candles on the foil, and put them in the area without
drafts or disturbances.
4. Light the candles, and check the time on the watch. Write the time
Check the time on the watch every once in a while, and after 3 hours,
put out the candles.
5. Weigh the candles, and write down the weight.
6. Repeat steps 1 through 5 with the other 6 candles.
Variables: Manipulated Variable: The diameter of the
Controls: Time I allow the candles to burn, temperature
of the place the candles are,
amount of drafts and disturbances (preferably none), wick size.
Responding variable: Weight change.
Results: The 2-inch diameter candle had the fastest
I noticed that the other two candles lost exactly the same amount as
each other every time.
A chart, with my full results, is below.
Personal communication with Fran Banaszewski of Fran's
I used lots of different websites. Here are a few