Hot air rises.
Hot air! Hot air is lighter than cold air.
hot air or hot gas
hot air rises
A hot air balloon rises because when hot air is added it is intended to rise and when the hot air balloons wants to land, hot air is decreased.
Hot air rises.
Hot air! Hot air is lighter than cold air.
the hot air is more dense then the actual air
hot air is when you get hoott
Hot air is used for hot air balloons.
Hot air makes a hot air balloon rise because hot air is less dense than the cooler air around it, so the hot air balloon floats on the cooler air around it.
hot air rises
hot air or hot gas
hot is hot cool air is cold
hot air rises
to make a hot air balloon rise you use hot air
A hot air balloon rises because when hot air is added it is intended to rise and when the hot air balloons wants to land, hot air is decreased.