Smoke is caused by burning things like wood, petrol or oil. Smoke is made up of gases, such as carbon dioxide, which are invisible, and tiny soot particles (specks of dirt) which are visible. The more soot particles there are in the smoke, the more visible the smoke is. ) being present in the smoke when it is burned.

How is smoke created?

Smoke occurs when there is incomplete combustion (not enough oxygen to burn the fuel completely). In complete combustion, everything is burned, producing just water and carbon dioxide. When incomplete combustion occurs, not everything is burned. Smoke is a collection of these tiny unburned particles.

What makes a lot of smoke when burned?

2. The flaming phase begins when the fuel reaches ignition temperature and erupts into flames. The fuel is now going through a chemical change with the release of large amounts of heat and gases. When mixed with oxygen, the heated gases ignite, rapid oxidation occurs, and large amounts of smoke is produced.