Everyday Science
Why does hot air rise?
Because warm air spreads out and becomes less dense. Cooler, denser air sinks underneath and pushes warm air upward. This movement helps make winds, clouds and hot-air balloons rise.
Everyday Science
Because warm air spreads out and becomes less dense. Cooler, denser air sinks underneath and pushes warm air upward. This movement helps make winds, clouds and hot-air balloons rise.