Final answer:
Never use burning signals such as flares around combustible areas or when working with open flames like a Bunsen burner. Ensure you follow safety guidelines, including securing loose clothing, wearing safety goggles, and having fire safety equipment available.
Step-by-step explanation:
You should never use burning signals, such as flares or fuses, around a combustible area. This includes locations where flammable chemicals, loose clothing, and other combustible materials are present. In the context of a school laboratory, this safety guideline is critical when working with a Bunsen burner or any other open flame.
When igniting an open flame, it's important to tie back all loose hair and clothing. You should follow all of your teacher's instructions and make sure that you're wearing safety goggles. It's also vital to ensure that no flammable materials like paints, solvents, or chemicals are near the flame, as they can be sources of ignition and lead to a fire.
Furthermore, it's essential to know where fire safety equipment is located in the laboratory in case of an emergency. Never leave an open flame unattended and always work in well-ventilated spaces to avoid inhaling any potentially hazardous fumes that may result from combustion.