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Course Learning Outcomes for Unit I Upon completion of this unit, students should be able to: 3. Explain the physical and chemical properties of fire. 3.1 Evaluate measurement in understanding fire behavior. 3.2 Examine the basic SI units of measurement and conversion into English units. 5. Define and use basic terms and concepts associated with the chemistry and dynamics of fire. 5.1 Categorize the chemical elements that are related to fires. 5.2 Distinguish the differences in molecules and compounds. Reading Assignment Chapter 1: Fire Measurement and the SI System of Units Chapter 2: Chemical Elements and Compounds: Atoms and Molecules Chapter 3: Physical and Chemical Change Unit Lesson “Review of devastation wrought by fire throughout the centuries reveals that fire is a serial killer” (Corbett & Pharr, 2011, p. 2) and has changed the way we view fire today. This has caused fire service leaders to review ways to reduce “line of duty” injuries or deaths. The National Fallen Firefighters Foundation (2013) has reviewed the many root causes of fire-related injuries and deaths. Their findings espoused that it is the “behaviors and attitudes that are the true root causes of the fatal incident” (2013, p. 1). They further suggested one of the causes is the lack of preparedness. The authors stated: By the very nature of their duties, firefighters must be prepared to face a virtually limitless number of response situations. Unfortunately, firefighters are sometimes killed when they attempt to conduct a level of operations for which the individual or the organization is not prepared. Lack of Preparedness was cited in 389, or approximately 1/3 of the 1252 fatality reports reviewed in 2011. (2013, p. 9) What does this mean? The authors supposed the, “lack of preparedness is also often symptomatic of poor decision making, because no firefighter should ever attempt to do something that they are unprepared or illequipped to undertake” (Everyone Goes Home, 2013, p. 9). Doesn’t that mean they didn’t have proper personal protective clothing on or they were not trained properly? What about understanding fire behavior or combustion? Many times the need for understanding fire behavior and combustion has gone unheeded. We are taught the fire tetrahedron in the academy and often believe that is all we need to know in order to extinguish a rapidly developing fire. After all, if we remove one element of the tetrahedron the fire goes out. As leaders in the fire service we must understand the science behind rapid fire development; the chemical elements and compounds of fire; the transmission of heat, including conduction, convection, and radiation; fire extinguishment theory; fire behavior in a structure, including products of combustion; the signs, origins, and prevention of backdrafts; and the phases of fire growth as related to oxygen concentration, or the lack thereof.
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