Diffusion demo demonstrates convection currents

[insightandlearningParticipant]

I wonder if the diffusion demonstration should be improved to reduce the effect of convection or if this is not necessary as long as the parent/teacher clarifies that the action being observed is the spread of the food coloring from the bottom of the glass up.

This article <https://www.instructables.com/Real-Diffusion-Experiment-for-Home-or-School/&gt; has several recommendations.

• This topic was modified 3 months, 1 week ago by  insightandlearning.

[insightandlearningParticipant]

https://www.instructables.com/Real-Diffusion-Experiment-for-Home-or-School/

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