If two hot-air balloons are filled at the same time, but one is filled with warm air and one is filled with hot air, which
balloon do you think will rise higher?
The balloon with hot air
The balloon with warm air
Warm air is lighter than cold air. That is how a hot-air balloon rises up. Hot air is lighter than warm air so a hot-air balloon will rise up faster and higher than a balloon with warm air.
