@litttledebbbie

I remember in the fifth grade I did this experiment and I got 1st place in the science fair. I had a lot of fun doing it although mine looked lame and was plain. Your is really cool though!

@Fisico-Matematico

Great thermodinamic proyect: simple, beautiful, scientific. 
Concepts behind: energy transfer by convection, density variation due to molecular vibration, rotational mechanic energy by air flow.

@ranua9327

easy and cool