I Need A Catchy Title For A Science Fair Board On Scented Candles Or Non-scented Candles Burn Faster?

• Smell Science: Does Smell Affect Speed?
• So You Think You Can Burn? Scent's Affect On The Rate Of Candle Burning
• Scent Speed: How Does Candle Scent Affect How Long They Last?

Feature a partial question in the title to show that you've featured analysis of the concept right from the beginning.