With all of the fires in Florida, we have been having so much smoke that most of the time it looks like thick fog. Why is some smoke white, while other smoke is black?
Smoke is made up of tiny particles of solid or liquid, and the color depends on what those particles are made of. If they are particles of carbon, then the smoke is black. If the particles are bits of fuel that have not burned completely, then the smoke will be white or gray.