If you have kids and you want to teach them hands-on about the power of the sun, Solar Dough is a good way to start.
Watch them pull it apart and mash it back together as they "ooh" and "awe" over the different colors that it turns to in the sun. That's what my little ones did. They watched their solar dough turn from blue to darker blue to purple and then, just as advertised, back to blue in seconds when taken out of the sun. The smiles on their faces were enough to say to me "this is fun!"
Solar Dough comes in 4 colors: green, blue, yellow and pink. Green turns to purple. Yellow turns to green. Blue turns to purple. Pink turns to purple too. Solar Dough is non- toxic, doesn't stain, and is water-soluble so it can be easily washed off. I like that.
Overall, I was impressed with the nice smell and cool texture of the dough. The Solar Dough smells like sweet scented spring soap, and the dough is moist which makes it cool to the touch, like a gel pack. I used it as therapeutic (stress) dough or what I like to call "thinking dough" whenever my kids were not around to take it from me. That wasn't often.
If the Solar Dough has a flaw it's that the longer we played with it in the sun the stickier it became and the smooth texture it once had was gone. At times, it became so sticky that it was difficult to play with because it stuck on everything, even our hands. I didn't have a problem with this because it's easy to wash off, but my kids, 3 and 5 year old girls didn't like its stickiness so much. To make it less sticky, all I had to do for the first few days was place it back in its plastic container and then let it sit inside for a while until it was back to normal. Still, after about 2 weeks, it remained sticky despite my efforts to make it less.
Another flaw is that if it was dropped, which is easy to do, it would quickly become dirty collecting dirt and hairs. This dirt was not easy to clean off. Instead, it became part of the Solar Dough. Only sometimes after letting the dough cool off I was able pick off some of the hairs and dirt with tweezers. Now if you want to experiment with the dirt collection, then the Solar Dough is a great way to capture small items like dirt, bugs or other small things to analyze or inspect more closely. My kids enjoyed this too.
For $3.95 it's a little expensive, but it is a lot of fun. You can buy Solar Dough here.