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Convection

Diagram of how circular flow of air creates a convection current

Convection transfers heat through the air. As the air heats, it rises. Cooler air below moves in, heats up and rises. As the risen air cools, it becomes denser and falls. This circular flow of air creates a convection current.

Rights: The University of Waikato Te Whare Wānanga o Waikato
Published:03 November 2009Size: 28.84 KB