Lesson Overview: This activity contains three demonstrations in which students observe real fires to see how the conceptual model of the Fire Triangle applies to real combustion.

Lesson Goal: Increase students’ understanding of combustion. Increase their awareness that use of fire requires safe practices and responsible adult supervision.

Objectives:

• Students can use the Fire Triangle to explain why lighted matches go out.
• Students can use the Fire Triangle to explain why it is difficult to light a candle in the presence of a mixture of baking soda and vinegar (or dry ice).