- Fuel: A fire requires a fuel source, such as wood, paper, or gasoline, to burn.
- Oxygen: Fire needs oxygen to sustain itself. Without oxygen, the fire will eventually die out.
- Heat: A fire produces heat, which can cause damage to property and injuries to people.
- Light: Fire produces light, which can help to illuminate a dark area.
- Smoke: Fire produces smoke, which can be harmful to health and can contribute to air pollution.
- Flames: Fire produces flames, which are visible tongues of fire.
- Sparks: Fire can produce sparks, which are small pieces of burning material that can be carried by the wind.
- Ash: Fire produces ash, which is the residue left after a fire has burned out.