You will need
  • Empty 2-liter bottle
  • Hot water
  • A few drops of alcohol
  • Ice cubes
  • Pipette
Instruction
1
To make fog in the first one-third fill a 2-liter bottle of very hot water.
2
Put a few drops of alcohol into the bottle with the pipette.
3
Take an ice cube and hold it over the neck of the bottle. Here is the fog.