Final answer:
When using a Bunsen burner, it is important to keep flammable items away, avoid reaching over the flame, ensure burner stability, restrain hair, and turn off the gas source after use.
Step-by-step explanation:
When using a Bunsen burner, it is important to follow several safety precautions:
- Flammable items should be kept away from the burner: Keep all flammable substances, such as paper, chemicals, and clothing, at a safe distance from the burner to prevent accidents.
- Do not reach over a lit burner as the flame may be difficult to see: To avoid accidentally coming into contact with the flame, never reach over a lit burner. Always work from the side.
- The burner should be stable on a level surface: Ensure that the Bunsen burner is placed on a stable, level surface to minimize the risk of it tipping over.
- Hair must be restrained: Tie back long hair or secure it with a hairnet or hair clip to prevent it from potentially catching fire.
- The gas source should not be left on without a flame lit: Always remember to turn off the gas source immediately after extinguishing the flame to prevent gas leaks.