About a month ago, we ripped open some diapers, and used the polymer powder inside to make leprechaun snow (click here, to read about that).
I mentioned then, that I understood the "snow" could be dried out, for later use, but I'd have to see how that went. Well...
After, sitting in a bowl, on our kitchen counter, for a month, being stirred around occasionally to prevent mold, our "snow" turned into the hard, rock like blobs, pictured above. Actually, they looked a little messier than that, I moved those clumps to a fresh bowl.
I thought it was pretty much a loss, and was going to chuck the bowl full this morning, but decided to add some water to it first, to see what would happen.
Much to my surprise, the rock like blobs, re-hydrated, and separated back out into a fluffy substance, that was again somewhat like snow.
There were still a few lumps in our "snow".
Which, I took, and dropped into another bowl of water, continuing the process, until the polymer was completely re-hydrated.
So, while it didn't work exactly the way I had imagined, it turns out, that you can dry out homemade polymer snow, and use it again later.
It's great to be a homeschooler.