What are the three components of the Fire Triangle? What happens when one component of the Fire Triangle is removed? Objective Students will be able to construct a paper model of the Fire Triangle and explain how extinguishing a fire is analogous to removing one leg of a triangle. Background Fire can occur only if oxygen, fuel, and heat are available. These three components are called the “fire triangle.” This activity is from the “Fireworks Education Program” curriculum, which can be found online . The traveling trunk that goes with this curriculum can be obtained from the Flathead National F Duration: 60 Minutes.