Common Materials We Burn at Home and What Happens When They BurnPaper/Newspaper - Turns brown/black, curls, then becomes ash; releases smoke. Chemical change—can’t be turned back into paper.Wood/Charcoal - Produces heat, light, smoke, and ash; structure breaks down into charcoal then ash—also a chemical change.Candle Wax (with wick) - Wax melts (physical change) and vaporizes; vapor burns (chemical change), producing carbon dioxide, water vapor, heat, and light.Incense/Katol - Smolders and releases fragrant smoke; solid becomes ash—chemical change.Dried Leaves - Ignite quickly, releasing smoke and ash; mass decreases as gases escape—chemical change.