Flammable materials are substances that can easily ignite and catch fire when exposed to heat, sparks, or flames. Common examples include gasoline, wood, and paper. These materials can burn quickly and may produce harmful smoke or toxic gases when they do. Proper storage and handling of flammable materials are essential to prevent accidents. They should be kept away from heat sources and stored in well-ventilated areas. Understanding the properties of flammable materials helps ensure safety in homes, workplaces, and public spaces.