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Project title Comparing the burning speed of scented and unscented candlesFeatured science projectScience project video
Difficulty Level Middle school
Project page  Click here to view this science project

Description
This experiment was performed to compare how quickly a scented and an unscented candle will burn. The tests were done by comparing the length that the candles will burn in 30 minutes - using unscented, rose scented and apple scented candles. 

Instructions preview
1. For this experiment, the independent variable is the type of candle used – unscented, rose scented and apple scented. The dependent variable is the reduction in the candle’s length after 30 minutes. This is determined by measuring the height of the candle before and after allowing it to burn for 30 minutes. The constants (control variables) are the length of the candle, the diameter of the candle, the allowed burn time and the room temperature. 2. The three types of candles are labeled according to their scents and numbered from 1 to 5 for each type. Their total .....
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