If you want to keep kids interested, try putting a scoop of flour in a two liter soda bottle and putting one of those bottle caps with the fill valve on it and fill it to about 100 psi.
https://youtu.be/IGXCkKi2OaU
If you want to keep kids interested, try putting a scoop of flour in a two liter soda bottle and putting one of those bottle caps with the fill valve on it and fill it to about 100 psi.
https://youtu.be/IGXCkKi2OaU
I’ll definitely have to give this a try!