Final answer:
When a teacher notices signs of abuse, such as cigarette burns on a child, they should contact the proper authorities as they are typically mandated reporters. The teacher's action of contacting the police is correct to ensure the child's welfare. Furthermore, in lab environments, following safety protocols is crucial for preventing accidents.
Step-by-step explanation:
The subject matter of the question relates to Child Welfare and the responsibilities of educators and public servants when they suspect abuse or neglect. If a teacher notices signs of potential abuse, such as multiple cigarette burns on a child, they are typically mandated reporters and must contact the appropriate authorities, such as child protective services or the police. In this scenario, the teacher has already contacted the police, which is the correct action. It's vital to ensure the safety and well-being of the child. Furthermore, in a school environment, it is crucial to maintain a safe setting for all students, which includes addressing any signs of harm or dangerous behaviors.
In regards to the laboratory safety tips provided, it's important to follow all safety protocols to prevent accidents or potential harm while conducting experiments. This includes never eating or drinking in the lab, carefully cleaning lab materials, and exercising caution around flames or heat sources. Teachers and students should be vigilant and report any unsafe conditions or incidents immediately.