We did this awesome science experiment found HERE. We filled up the balloons the day before and put them in the freezer. Then I had an extra balloon filled with water (left unfrozen) to touch and compare size & weight. I had the kids cover it with salt and then drop food coloring all over it. My pictures don't do it much justice, but it looked really cool! The salt left it looking crystalized and cracked and had small craters all over it. The kids were completely mesmerized by it. During playtime most of them went over to see the changes.....like every two minutes. No exaggeration! So great! :)
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