That's true. I remember my dad bringing home a block of dry ice and making a cloud chamber when I was a kid but I wasn't so impressed. Maybe I would have been more impressed had I also gotten a radioactive source.
The dry ice experiment I did with my son was putting a dry ice pellet into a PET bottle and watching it explode maybe 40 minutes later. (A few minutes if you add cold water, goes off like a hand grenade if you use hot water) The same concept can be done with liquid nitrogen or with a mixture of chemicals that produces gas, such as aluminum foil with either a strong acid or a base. [1]
The dry ice experiment I did with my son was putting a dry ice pellet into a PET bottle and watching it explode maybe 40 minutes later. (A few minutes if you add cold water, goes off like a hand grenade if you use hot water) The same concept can be done with liquid nitrogen or with a mixture of chemicals that produces gas, such as aluminum foil with either a strong acid or a base. [1]
[1] https://publicintelligence.net/vermont-fusion-center-improvi...