Hazard warning labels Introduction In chemistry, hazard warning labels are like little stickers that we put on bottles or containers to tell us if a chemical can be dangerous. They are pictures and words to help us use special rules when working with those chemicals, so nobody gets hurt. Why are learning and reading labels important? Learning and reading labels are important because they tell you what substances are in a product and how to handle them safely. This helps prevent accidents, like mixing chemicals that could react dangerously. You can help prevent illness and injury by reading the warning label for each hazardous substance you use. The overall goal is to prevent injuries and save lives. Explosive A substance that can explode if it comes into contact with a flame or heat. Flammable A substance that can catch fire easily. Oxidizing A substance that gives off a large amount of heat when in contact with other substances. Corrosive A substance that can destroy living tissue. It can cause burns. Toxic A substance that can poison you. Any questions ?