This program attempts to model the fundamentals of molecules dissolution. The red turtles represent a solid that is immersed in a liquid. Over time, without agitation, the solid will randomly dissolve into the liquid until it reachs uniform saturation.

For detailed instructions on using the program, take a look at the info window

Download the StarLogoT source code for the model:
Download this model

To run this file you need StarLogoT2002 for the Macintosh.
(download StarLogoT)