There are different types of fuels and different ways they can burn in a fire. In a standard single-family home, discuss the biggest fuel loads. How would this differ from the fuel loads you would find in a McDonald’s? Discuss the components of the fire tetrahedron. If any part of this tetrahedron is removed, the fire will go out. For each of the following fire extinguishment methods, explain what part of the tetrahedron is being removed.

• Pouring water on a small wastebasket fire.
• Placing an air-tight metal lid over a grease fire in a frying pan.
• Using a dry-chemical fire extinguisher on a fire in a car engine compartment.