this was a really fun discovery & process oriented activity, from Mary Ann Kohl, found here. we used white glue to make designs, then sprinkled salt over the design (we had a large baking pan over which we sprinkled, to catch and reuse the salt).
the set-up provided plenty of opportunities to practice other skills, like writing and pouring, too.
we primarily used droppers to dispense the liquid watercolor, which allowed for neat distribution along the salt.
we had brushes available, too, and that gave a different effect, especially if the kids scrubbed their image, like jean mentioned.
the kids really enjoyed watching the color travel along their glue/salt paths...it was fascinating watching the color move and mix with other colors. the salt is a cool tactile element, too. this one's a keeper!