The kids start by sprinkling the salt on the ice structure, as little or as much as they like. The salt eats away cracks and divots into the ice, laying paths for the coloring to seep in.
And then they start pouring/squirting the coloring on the ice.
The color will seep into the cracks the salt made in the ice, instead of just sliding right off.
The kids become fascinated seeing which way the colors will flow and
what colors will meld together to form new colors.
I took pictures for the first 10 minutes or so, and then they stayed out there playing for another 45 minutes. Ahh, the sound of happily occupied kids. Nothing much better than that.
When they're all done just toss out on the grass or right into the sink for easy clean up.
Obviously this is a fun summer activity, but we found the fun to last even longer now in winter since the ice sculptures don't melt as quickly. So that's what's been keeping my kids occupied for 1/12th of the day. What's been keeping your kids busy these days?