whay is it
This describes what happens in a convection cycle.
warmed air sinks, creating a high-pressure area as it falls.
The process you are describing is known as convection. This cycle occurs when a fluid, in this case, air, is heated, causing it to expand and rise due to lower density. As the air rises, it cools, becomes denser, and eventually sinks back down to be reheated, thus continuing the convection cycle.
Warmed air sinks, creating a high-pressure area as it falls. ^ Not Quite Warmed air rises, creating a high-pressure system below
The differing densities of water create a consistent movement between the various thermal layers. As water is cooled, it actually expands, so it rises, and as it is warmed it sinks.
The differing densities of water create a consistent movement between the various thermal layers. As water is cooled, it actually expands, so it rises, and as it is warmed it sinks.
The intense heat in the Earth's core causes molten rock in Earth's mantle to shift. That causes a pattern called a convection cell which forms when material rises, cools, and sinks. When the material sinks, it is warmed and rises again.
The intense heat in the Earth's core causes molten rock in Earth's mantle to shift. That causes a pattern called a convection cell which forms when material rises, cools, and sinks. When the material sinks, it is warmed and rises again.
In a normal convection cycle, warm air rises due to being less dense, cools down as it reaches higher altitude, becomes denser and sinks back down, and then gets warmed up again by the heat source, completing the cycle. This continual movement of air creates a convection current.
When magma is being heated it rises. When it is cooled, it sinks.
sinks.
Because the warm particles/air from the fire are lighter than the cold air around it. The warm air, being lighter, rises, and the cold, heavy air sinks. Cold air is pulled into the bottom of the fire, warmed and continues the cycle.