nothing its a big misconception it was first introduced to make children do more exersise
Smoke rises up a chimney partly due to the principle of convection. As the air inside the chimney heats up from the fire below, it becomes less dense and rises, creating a flow of warm air that draws the smoke up and out of the chimney.
Warm gases and warm fluids rise to the top. Same principle that makes hot air balloons fly.
You can warm it up in a microwave.
Warm Up happened in 2000.
A person can wear a coat in cold weather to keep warm. It is the same principle for animals that have feathers or fur.
...butter melts when you warm it up
Warm Up was created on 2000-11-16.
The Warm Up was created on 2009-06-15.
Warm It Up was created on 1992-06-04.
warm it up
stretching
stretching