Dust Explosion
![Someone blowing cornstarch into a flame causing a fireball](/media/libraries/college-of-science-and-engineering/physics/images/demo-images/DustExplodeB.jpg)
PIRA: 4F10.40
A scoop or two of corn starch is placed loosely in the funnel. By blowing forcefully and steadily into the free end of the hose, a nice cloud of corn starch dust can be made. In the presence of an open flame, an impressive fire ball will occur.