Fake fog

In Hindi horror movies , whenever ghost appears , we can see the white fog first accumulating the area. In our movies , it is the sign of entry of GHOST ! The fog what we see in movies is not the natural one. This fog can be generated anywhere and at any time. How ?????????? ???? This fog is because of vaporization of dry ice. Dry ice is actually solid form of carbon dioxide ( CO 2 ) . Even we can produce the same foggy effect in our house. All we need is hot water in a container and dry ice. Dry ice is extremely cold and if touched with bare hands , it may result in frost byte. That's why dry ice should be handled with care wearing hand gloves. Now when we place the dry ice inside the hot water container , dry ice vaporize thus giving carbon dioxide gas. This gas results in fake fog. Though carbon dioxide is not toxic or inflammable , it is better to do this experiment in well ventilated area.