About This Lesson
We’ve all seen trick candles on birthday cakes. No sooner are they blown out, then they re-light and can be blown out again. When an ordinary candle is blown out, there is always a burning ember left in the wick that causes the telltale smoke to rise from it. When the ember goes out, the smoke stops. Instead of allowing the ember to simply die out, trick candles use the ember to re-light. This is why trick candles only light by themselves after they have been blown out, not fresh from the box.
