<ul><li>Convection cells are commonly found in various phenomena, including clouds, the Sun, and cooking pans.</li><li>Convection occurs due to density differences in a fluid, where denser fluid sinks and lighter fluid rises.</li><li>Convection cells can form when there is a temperature difference or when a volatile chemical, such as alcohol, evaporates from a mixture.</li><li>The observed convection cells in an alcohol-paint mixture demonstrate the density differences created by the evaporation process.</li></ul>

Convection in Blue

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