Someone bought me a gift of ethically sourced salmon that was shipped in dry ice.
Little did she know it was actually two gifts because now I have some dry ice to play with.
I first tried making a cloud chamber but as I was warned online, 70% isopropyl alcohol doesn't work apparently. I got it to give me that snowing effect where it snows inside of the clear container but I was unable to see any particles.
I then used the rest of that dry ice to make some fun comets in a tray that had a thin layer of water in it.
I then just looked online and found someone who says that if you dissolve salt into 70% isopyproly alcohol the water and 99% alcohol separates. I just tried this in a test tube and it looks like it worked right away. I'm now waiting until after dark to use the last of my dry ice and give the cloud chamber one more try. Hopefully my last chunk of dry ice will survive long enough in the freezer.