Final answer:
Indeed, an instructor should always demonstrate the use of potentially dangerous equipment in a laboratory setting for safety. Proper usage and awareness of potential hazards are essential to prevent accidents and ensure a safe learning environment.
Step-by-step explanation:
True, you should always have your instructor demonstrate how to use potentially dangerous equipment before you try to use it. It is essential for safety to ensure you understand how to operate equipment correctly and are aware of the associated risks.
This practice is a critical component of laboratory safety protocols, underscored by the need to wear goggles in experimental situations, being cautious with flames and heat sources, and the requirement of cleaning materials properly to prevent unwanted chemical reactions.
Additionally, part of being safe in the laboratory includes never eating or drinking to avoid ingestion of harmful substances, following all safety guidelines provided, and immediately notifying the teacher in the event of any incidents, which may even necessitate an accident report.