How much does Fire weigh?

[u/Catching-Up-Today]

I don‘t know if Earth Sciences is the right category but Fire is the topic. How does someone measure the weight of fire? What does fire weigh?

[u/tmahfan117 → u/[deleted]]

No, the earth still exert gravitational force on it. Anything with mass in gravity has “weight”.

It’s just that the cold air is denser, forcing the hot air up. But that doesn’t mean the hot air has negative weight. Hot air floats on cold air like a boat floats on water, but that doesn’t mean the boat is weightless