The Basics of Fire

What is Fire? Fire is an exothermic chemical process that produces heat, light, and various reaction products. It is the result of the rapid oxidation of material. We’ll learn about its causes, the colors of flame, and how to prevent it. We’ll also cover how fire is a threat to our homes and lives. Let’s get started! Read on to learn about the four basic principles of fire. Getting started is easy: learn the basics of fire by following these four steps.


Inflammation is the body’s response to injury or infection. Symptoms can be as simple as a toothache, sore throat, or hot spot, or they can be as complex as pain, swelling, and heat. Two thousand years ago, Celsus outlined the four pillars of inflammation: redness and swelling. Redness occurs when capillaries in the affected tissue expand, bringing in more blood than usual.


Two major characteristics of fires are radiation and combustion. To simulate fires, both of these characteristics must be considered in the modeling process. Flames produced by combustion of gaseous fuels follow a variety of different chemical and physical processes. The types of burning depend on the amount of pre-heating, combustion rate, and fuel mixing. Solid fuels such as wood, charcoal, or wheat can also be used as fuel. They have been used by humans for thousands of years.

Colors of flame

The color of a flame is determined by the chemical makeup of the gas in which it burns. Temperature can also affect flame color. For example, a flame of hydrogen emits no visible light if it burns in pure oxygen. However, a flame of hydrogen containing minor impurities can emit a pale blue flicker. Other common fuels such as wood and coal emit a pale blue flame. The colors of flame are also dependent on the energy released by the returning electrons.


Fire starts with heat. The presence of heat makes all flammable materials combust. This heat helps the fire spread by drying the fuel and pre-heating it. There are several reasons why the size of a fuel matters to a fire. Small fuels absorb heat more quickly than larger ones. Small fuels also have a high surface-to-volume ratio. Smaller fuels are more flammable. For example, a smaller twig can reach combustion temperature faster than a large one.

Extinguishing a fire

Fires can start in many different ways, but there are some things you can do to minimize the risk of loss of life and property. In most cases, fire is caused by a chemical reaction. In many cases, oxygen is readily available – about 21% of the air we breathe! – and so it is important to make sure it is able to escape. In addition, fire can start in either solid combustible materials or flammable liquids.