Lab Safety Quiz: Are You Aware?

Explanation
The correct answer is "Immediately" because if you see something dangerous during class, it is important to inform your teacher right away. This is because immediate action may be required to ensure the safety of everyone in the classroom. Waiting until you have time, after class, or at the end of the day may result in a delay in addressing the dangerous situation, which could potentially lead to harm or further escalation of the danger.

Explanation
When working in a laboratory, it is important to keep long hair out of the way to prevent any accidents or contamination. Long hair can easily get caught in equipment or chemicals, posing a risk to both the individual and the experiment. Therefore, it is necessary to tie back or secure long hair to ensure safety and maintain a clean working environment.

Explanation
In this context, the correct answer is "Teacher" because it is important to inform your teacher if you have an accident. Teachers are responsible for the well-being of their students and need to be aware of any injuries or accidents that may occur in order to provide appropriate assistance and ensure the safety of the student. By informing the teacher, they can take necessary actions, such as providing first aid or contacting medical professionals if needed.

Explanation
In a laboratory setting, it is important to prioritize safety and minimize the risk of accidents or injuries. Wearing close-toed shoes provides protection to the feet from potential hazards such as chemical spills, falling objects, or sharp objects on the floor. Sandals and open-toed shoes leave the feet exposed and vulnerable to these risks, while going barefoot (no shoes) completely disregards safety precautions. Therefore, close-toed shoes are the most appropriate choice for wearing in the laboratory.

Explanation
A fire extinguisher is the most appropriate tool to use in order to put out a fire in a person's hair or clothes. Fire blankets are typically used for smothering fires on surfaces, while chemicals may not be safe or effective for use on a person. Water can exacerbate certain types of fires, such as grease fires, and may cause further harm to the individual. A fire extinguisher, on the other hand, is specifically designed to suppress fires by releasing substances that can quickly extinguish flames.

Explanation
Walking is the correct way to move around the laboratory because it promotes safety and minimizes the risk of accidents. Running, hurrying, or skipping can increase the chances of slipping, tripping, or colliding with equipment or other individuals. Walking allows for better control and awareness of one's surroundings, ensuring a safer environment for both oneself and others in the laboratory.

Explanation
The correct answer is All Students. This means that it is the responsibility of every student to clean up the laboratory. It is not solely the job of new students or the teacher, nor is it nobody's job. The phrase "All Students" implies that each student has a duty to contribute to maintaining cleanliness in the laboratory.

Explanation
Broken glassware poses a higher risk compared to intact glassware. The sharp edges and fragments of broken glass can cause cuts and injuries to the user. Additionally, broken glassware can also result in contamination of substances or materials being handled, leading to further hazards. Therefore, it is important to avoid using broken glassware to ensure the safety of individuals and to prevent any potential accidents or harm.

Explanation
Water is the best option for cleaning spilled acid because it can dilute and neutralize the acid, reducing its corrosive properties. Acid spills can be dangerous and cause burns or damage to surfaces, so it is important to clean them properly. Paper towels may not be effective in cleaning the spill, while alcohol or other materials may react with the acid and cause further hazards. Therefore, water is the safest and most suitable choice for cleaning up spilled acid.

Explanation
If acid is splashed on your clothing, it is important to wash it at once with water. Water helps to dilute the acid and remove it from the clothing fibers. Using soap or oil may not be as effective in neutralizing the acid and could potentially cause further damage to the clothing. Alcohol is also not recommended as it may react with the acid and cause additional harm. Therefore, water is the safest and most appropriate option for washing off acid from clothing.