This one I had fun with! Look at the structure I put together for this.
Just a couple of straws with candles at the ends. The horizontal straw is balanced with a simple paperclip and it is pushed into the vertical straw.
What happens when we light one candle on fire? Well, its starts to drip wax and the candle on one side gets lighter. Thus,
It moved fairly quickly! Then I lighted the second candle and it began to drip as well. Then…
It started to drip and tip back and forth till it completely swung around!!!
It did this until there was not more wax! It was so cool to see it swing about like that! The candle did go out a few times, but nothing that a lighter can’t handle!
The WOW-rating is a 7! That was a great example to learn balance. If you have kids, look up this experiment and show your kids to help them understand the concept of balance. Be safe and have fun!