hot air goes up, cold air goes down.
This process is called convection. Hot air rises because it is less dense than cold air, creating a cycle where hot air goes up and cold air goes down, creating air currents.
warm air rises cold air goes down sinks
The cold air is denser, so cold air usually sinks down, and warmer air will float to the top.
When air is heated, it expands, it becomes lighter and goes up. Cold air is denser and heavy. That is why it sinks down. When hot air rises, cold air from surrounding area rushes there to fill in the gap. That is how air circulation takes place.
It is true. It is the temperature of the air that mainly creates currents of wind.
There is really nothing interesting about cold fronts. Cold air is overtaking warm air. Since cold air is denser than warm air, cold air goes under a warm air mass.
Food goes down the esophogaus and air goes down the trachea.
Warm air is lighter than cold air because cold air is denser, by dense I mean the particles in cold air are more packed together than it is in warm air. Therefore cold air is heavier which is why warm/hot air always floats above cold air (same thing with hot/warm and cold water). That is why warm/hot air is lighter than cold air.That's the reason why a hot air balloon only goes up when there's something producing hot air (like fire for example), and the only reason it goes back down is if you put out the fire. Remember this only happens because Hot water/air is less dense than cold air which makes it lighter.
bob is the best
Souns like a head gasket to me.
warm air goes over cold air.