Friction matches are small sticks made of wood or cardboard that are coated with a chemical mixture on one end. When struck against a rough surface, the friction generates heat, igniting the chemicals and producing a flame. This simple design allows for easy lighting of fires for cooking, heating, or lighting candles. The head of a friction match typically contains compounds like sulfur, potassium chlorate, and glass powder. These ingredients work together to create a quick and reliable ignition. Friction matches are commonly used in households and camping, providing a convenient way to start a fire without the need for lighters or other ignition sources.