Convection in Cold and Hot Water, 1 of 4

Convection in Cold and Hot Water, 1 of 4

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Credit: Science Source/SCIENCE PHOTO LIBRARY

Caption: A series of six photographs showing the difference in convection of food dye in cold water versus hot water. Blue dye added to cold water (left) sinks and diffuses slowly. The dye added to hot water (centre) diffuses quickly.

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Keywords: buoyancy, circulation, cold, cold water, comparison, container, convection, convection current, convective, cup, current, demonstration, density, diffuse, diffusion, dye, dynamics, experiment, flow, fluid, fluid dynamics, fluid mechanics, food colouring, food dye, force, glass, gravity, hot, hot water, ice water, liquid, mix, mixing, physical, physics, series, temperature, thermal, thermodynamic, warm, warm water

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