I made a really crude one of these a long time ago. Seeing the trails live is really strange and cool. If you can only get weak isopropyl you can remove water

I made a really crude one of these a long time ago. Seeing the trails live is really strange and cool. If you can only get weak isopropyl you can remove water pretty easily by salting it [0]. Drawing the alcohol off the top with a turkey baster or similar is probably the best way with typical household equipment. If you don’t have one of those, you can do it in a water bottle, let the water settle out with a bottle upside down, poke a small hole in the base of the bottle then just partially open the lid over sink and let it drain until you get to the alcohol. Just remember that this stuff is now super flammable so be careful. (Salting doesn’t really work with ethyl alcohol so save your vodka) Dry ice is pretty easy to get at Graeter‘s if you have one of those local. Just don’t store it in a closed container. Gloves are a great idea of course but I also advise wearing thick socks or slippers when you’re using it. Stepping on even a very small piece of dry ice in bare feet is experience you will remember. Dry ice is a lot of fun but doesn’t last long. If you go through this, check youtube for other experiments and things to do, and buy a little extra. Just remember never put it in a closed container, it will almost certainly explode. Physics doesn’t care about you, respect the material. (edit: I just checked, heat of sublimation of CO2 is approximately 570 kJ per kilogram. A stick of dynamite has approximately 1 MJ. There’s a lot of energy cached in those blocks.) Have fun! [0] https://youtu.be/CtwQ2aEBur4 https://youtu.be/CtwQ2aEBur4