Lab Safety Quiz

You have a laboratory experiment scheduled for class today, but when you get to class, your teacher is not there. You should:

• Go ahead and start working on the experiment.

• Only work in the lab if you know what you are doing.

• Remain in your seat at your desk until your teacher arrives.

• Get up and socialize with your friends until your teacher arrives.

Answer explanation

The correct choice is 'Remain in your seat at your desk until your teacher arrives.' It is the safest and most responsible action to take. Lab experiments should only be performed under the supervision of an authorized person, such as a teacher, to ensure safety. Without supervision, there could be potential risks and dangers. Socializing or starting the experiment without the teacher's guidance is not advisable.

What should you do if you break a beaker during a lab experiment?

• Pick up the large pieces and throw them in the trash can.

• Notify your teacher, sweep up the pieces and dispose of them properly.

• Don't do anything. The school custodian will clean up the broken glass.

• Put on gloves and pick up the pieces of glass.

Answer explanation

The correct way to deal with a broken beaker during a lab experiment is to inform your teacher about the incident. This is so that they can provide proper guidance on how to safely clean up and dispose of the broken pieces. Attempting to clean it up on your own or leaving it for someone else may lead to injuries.

Before beginning any laboratory activity or experiment, what should you do order the steps?

• Put on gloves.

• Wash your hands with cold water.

• Read the entire procedure.

Answer explanation

The most crucial first step before starting any laboratory activity or experiment is to understand the entire procedure. Reading the procedure ensures that you are well aware of the steps and precautions to be taken, which leads to safer and more accurate execution of the experiment. This is why 'Read the entire procedure.' is the correct answer.

What should you do before you use any liquids or solutions in the laboratory?

• Heat the solution with a Bunsen burner.

• Read the label three times.

• Smell the solution to see if it is spoiled.

• Put on safety glasses and gloves.

Answer explanation

The correct answer is 'Read the label three times.' Before using any liquids or solutions in a laboratory, it is crucial to read the label multiple times. This is to confirm the identity of the substance, understand its properties, and ensure safety while handling it. It is a standard protocol followed in laboratories to prevent any mishaps or accidents.

John notices an unlabeled chemical in the classroom refrigerator. What should he do?

• Notify the teacher

• Take it home

• Leave it alone

• Put a label on the bottle

Answer explanation

The correct procedure in such a scenario would be to alert the teacher who would have the knowledge and authority to deal with the situation. Taking it home, leaving it alone or labeling it oneself could potentially be dangerous as one does not know what the substance is or how it should be handled. Thus, informing the teacher is the safest and most responsible option.

During a chemistry lab session, David and Abigail were instructed to wear aprons. Grace, who was also in the lab, followed the same instruction. What does this scenario represent?

• Dress for Lab

• Personal Protective Equipment

• Safety Equipment and Equipment Safety

• Lab Behavior

Answer explanation

The question 'Wear aprons when instructed' pertains to protocols related to safety measures when carrying out laboratory experiments. Among the given options, 'Personal Protective Equipment' is the most appropriate one because it specifically refers to protective clothing, like aprons, which is used to safeguard the wearer against safety hazards in a lab environment.

Abigail, Priya, and Nora are getting ready for their chemistry lab. How should they dress for lab?

• Wear Close-toed shoes

• Wear safety glasses

• Wear a face shield

• Wear an Apron

Answer explanation

The question asks why one should wear close-toed shoes. Among the provided options, 'Dress for Lab' is the most relevant. Wearing close-toed shoes is a crucial part of dressing for a lab, as it can prevent potential injuries. Therefore, the correct answer is 'Dress for Lab'.

Oliver, Benjamin, and Aiden are about to start a chemistry lab experiment. They have long hair. What should they do before starting the experiment?

• Tie their hair back and remove any loose jewelry

• Wear clothes that cover their entire body

• Wear Close Toe Shoes

• Leave personal items outside of the lab

Answer explanation

The question suggests that there are certain precautions that need to be taken when one has long hair or wears loose jewelry. This indicates that it's about a specific dress code or a set of guidelines to follow in a particular environment. The best fit among the provided options is 'Dress for Lab' as it refers to the way one should dress when in a laboratory setting, keeping safety in consideration.

During a science experiment, Kai, Anika, and Ethan were reminded not to eat, drink, chew gum, or taste anything in the science room. This rule is part of which safety guideline?

• Dress for Lab

• Personal Protective Equipment

• Safety Equipment and Equipment Safety

• Lab Behavior

Answer explanation

The question advises against eating, drinking, chewing gum, or tasting anything in the science room. This falls under 'Lab Behavior' as it pertains to the conduct expected within a laboratory setting for safety reasons. The other options, while important for lab safety, do not directly address this specific question.

James, Maya, and Harper are working on a chemistry experiment in their school lab. Their teacher instructs them to wear safety glasses or goggles. What is this an example of?

• Personal Protective Equipment

• Dress for Lab

• Chemical Safety

• Lab Behavior

Answer explanation

The question instructs one to wear safety glasses or goggles. This is a directive associated with Personal Protective Equipment. It's not about dressing up for the lab, nor about lab behavior, and it doesn't specifically pertain to chemical safety. Therefore, the correct choice is Personal Protective Equipment.