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30 Lab Safety Quiz Questions and Answers

Dress Appropriately: Always wear the appropriate personal protective equipment (PPE) before entering the lab. This includes lab coats, safety goggles, gloves, and closed-toe shoes. PPE is crucial for shielding your body from hazardous chemicals, flames, and sharp objects.

Know Your Experiments: Before starting any experiment, make sure you thoroughly understand the procedures and potential risks involved. If you are unsure about anything, ask your instructor or lab supervisor for clarification.

Handle Chemicals with Care: Follow the instructions for handling, storing, and disposing of chemicals. Use the correct containers and labels for each substance. Never mix chemicals unless instructed to do so by the experiment procedure.

Use Equipment Safely: Familiarize yourself with the lab equipment and their proper usage. Always turn off equipment when not in use and be cautious around heat sources like Bunsen burners.

Keep the Lab Clean: A tidy lab is a safe lab. Clean up any spills immediately and maintain a clutter-free workspace to avoid accidents.

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No Eating or Drinking: Never consume food or drinks in the lab, as you risk ingesting harmful chemicals accidentally.

Wash Hands Regularly: Always wash your hands thoroughly after working in the lab, especially before eating, drinking, or touching your face.

Article outline

Part 1: 30 lab safety quiz questions & answers.

1. What is the most appropriate attire when working in a laboratory? a) T-shirt and shorts b) Lab coat, safety goggles, and closed-toe shoes c) Long flowing dress or skirt d) Sandals and flip-flops

Answer: b) Lab coat, safety goggles, and closed-toe shoes

2. When should you wear gloves in the lab? a) Only when handling dangerous chemicals b) Only when using sharp objects c) Always when working in the lab d) Gloves are optional

Answer: c) Always when working in the lab

3. What should you do if you accidentally spill a chemical on yourself? a) Wait until the end of the experiment to clean it up b) Clean it up immediately using the appropriate procedure and notify your supervisor c) Ignore it, as small spills are not harmful d) Ask someone else to clean it up for you

Answer: b) Clean it up immediately using the appropriate procedure and notify your supervisor

4. Before conducting an experiment, it is essential to: a) Read the procedure and potential hazards carefully b) Check your phone for messages c) Wear your lab coat inside out for good luck d) Work without supervision

Answer: a) Read the procedure and potential hazards carefully

5. Which of the following is NOT an appropriate action in the laboratory? a) Running to quickly finish the experiment b) Keeping the work area clean and tidy c) Keeping all food and drinks away from the lab area d) Following all safety guidelines and procedures

Answer: a) Running to quickly finish the experiment

6. What should you do if you don’t understand the instructions or procedures in the lab? a) Proceed with the experiment as best as you can b) Ask a lab mate for advice c) Consult the instructor or lab supervisor for clarification d) Skip that step and move on to the next one

Answer: c) Consult the instructor or lab supervisor for clarification

7. How should you handle broken glassware in the lab? a) Carefully pick it up with your bare hands and place it in the trash b) Use tongs or a dustpan and brush to pick up the broken pieces and dispose of them in a designated glass disposal container c) Kick it under the lab bench to deal with later d) Leave it for someone else to clean up

Answer: b) Use tongs or a dustpan and brush to pick up the broken pieces and dispose of them in a designated glass disposal container

8. Which of the following should you do if there is a fire in the lab? a) Attempt to put it out yourself using water or the closest extinguisher b) Immediately evacuate the lab and alert others on your way out c) Try to move any hazardous chemicals away from the fire d) Continue working and ignore the fire if it seems small

Answer: b) Immediately evacuate the lab and alert others on your way out

9. When should you remove your safety goggles in the lab? a) Only when your lab partner confirms it’s safe to do so b) Whenever you feel uncomfortable wearing them c) Only after you have left the lab d) Never remove your safety goggles while in the lab

Answer: d) Never remove your safety goggles while in the lab

10. Which of the following is true about eating or drinking in the lab? a) It is allowed as long as you are careful not to spill b) It is strictly prohibited at all times c) It is allowed during non-experimental periods d) It is allowed in designated areas of the lab

Answer: b) It is strictly prohibited at all times

11. How should you dispose of chemicals after an experiment? a) Pour them down the sink b) Store them in your lab drawer for future use c) Follow the proper waste disposal guidelines provided by your instructor d) Leave them on the lab bench for someone else to deal with

Answer: c) Follow the proper waste disposal guidelines provided by your instructor

12. When is it acceptable to taste or smell a chemical in the lab? a) Whenever you feel curious about the substance b) Only if you know the chemical is non-toxic c) Never, tasting or smelling chemicals is strictly prohibited d) When the instructor or lab supervisor explicitly instructs you to do so

Answer: c) Never, tasting or smelling chemicals is strictly prohibited

13. Before using any lab equipment, you should: a) Check for damage and report any issues to the lab supervisor b) Use the equipment without any additional checks c) Assume the previous user has already checked it d) Use it as you see fit without regard to the user manual

Answer: a) Check for damage and report any issues to the lab supervisor

14. What is the primary purpose of a fume hood in the laboratory? a) To store chemicals safely b) To provide extra space for equipment storage c) To contain and exhaust harmful vapors and fumes d) To keep the lab temperature regulated

Answer: c) To contain and exhaust harmful vapors and fumes

15. When using a Bunsen burner, which statement is correct? a) It’s okay to leave the Bunsen burner unattended while it’s lit b) Always point the open end of the tube away from yourself and others c) Place the Bunsen burner near flammable materials for easy access d) It’s not necessary to have a fire extinguisher nearby while using the burner

Answer: b) Always point the open end of the tube away from yourself and others

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16. What should you do if you accidentally spill a chemical on your skin or clothing? a) Wash the affected area with water for at least 30 seconds b) Ignore it, as it is not harmful c) Continue working and clean it up later d) Use a cloth to wipe it off immediately

Answer: a) Wash the affected area with water for at least 30 seconds

17. Which of the following is NOT a proper way to handle electrical equipment in the lab? a) Use equipment with damaged cords or plugs b) Unplug equipment by pulling the cord c) Keep electrical cords away from water and other liquids d) Turn off equipment and unplug it when not in use

Answer: a) Use equipment with damaged cords or plugs

18. How should you carry sharp objects, such as scissors or scalpels, in the lab? a) By holding them pointed down by your side b) By passing them directly to your lab partner c) By carrying them with the sharp edges exposed d) By using a container or holder to transport them safely

Answer: d) By using a container or holder to transport them safely

19. When should you begin cleaning up your lab station after an experiment? a) After everyone else has

finished their experiment b) As soon as you are done with your experiment c) At the end of the lab session, regardless of your experiment’s status d) At the discretion of the lab supervisor

Answer: b) As soon as you are done with your experiment

20. What should you do if you accidentally break a mercury thermometer in the lab? a) Use your hands to pick up the broken glass and mercury b) Call for help and leave the area immediately c) Pour water over the mercury to clean it up d) Ignore the spill and continue working

Answer: b) Call for help and leave the area immediately

21. Which of the following is an appropriate action if you get a chemical in your eyes? a) Wait for it to evaporate on its own b) Rinse your eyes with water for at least 15 minutes and seek immediate medical attention c) Rub your eyes vigorously to get the chemical out d) Ignore it, as most chemicals are harmless to the eyes

Answer: b) Rinse your eyes with water for at least 15 minutes and seek immediate medical attention

22. What should you do if you find an unlabeled chemical in the lab? a) Use it for your experiment as long as it looks similar to what you need b) Dispose of it in the trash immediately c) Ask your lab mate if they know what it is d) Report it to your lab supervisor and do not use it

Answer: d) Report it to your lab supervisor and do not use it

23. When should you remove your gloves after completing an experiment? a) As soon as the experiment is finished, regardless of any clean-up tasks remaining b) Wait for someone else to remove them for you c) After washing your hands d) Never remove your gloves until you leave the lab

Answer: a) As soon as the experiment is finished, regardless of any clean-up tasks remaining

24. Which of the following is the correct procedure for smelling a chemical in the lab? a) Inhale deeply to get a strong sense of the odor b) Waft the odor towards your nose using your hand c) Stick your nose directly into the container to smell it d) Pour a small amount on your hand and smell it directly

Answer: b) Waft the odor towards your nose using your hand

25. How should you label a test tube containing a chemical? a) Use a sticky note with your name written on it b) No need to label, just remember what’s inside c) Use a pencil to write the name of the chemical on the test tube d) Use a waterproof marker to clearly label the test tube with the chemical name

Answer: d) Use a waterproof marker to clearly label the test tube with the chemical name

26. Which of the following should NOT be disposed of in regular trash? a) Paper towels with chemical spills b) Empty glass containers c) Broken glassware d) Disposable gloves used during an experiment

Answer: c) Broken glassware

27. What should you do if there is a power outage while conducting an experiment in the lab? a) Light candles to continue working b) Continue the experiment in the dark c) Inform your lab supervisor and wait for further instructions d) Start working with more intensity to finish before the power comes back

Answer: c) Inform your lab supervisor and wait for further instructions

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28. What is the best way to transport a large volume of liquid in the lab? a) Carry the container with both hands, ensuring it doesn’t spill b) Pour the liquid into a smaller container for easier transport c) Carry it above your head to avoid spills d) Ask someone else to carry it for you

Answer: b) Pour the liquid into a smaller container for easier transport

29. Which of the following actions should you take if you accidentally break a thermometer containing mercury? a) Notify your lab supervisor and follow their instructions for cleanup b) Clean it up yourself using paper towels and dispose of them in the regular trash c) Ignore it and continue working on your experiment d) Pour water over the mercury to clean it up

Answer: a) Notify your lab supervisor and follow their instructions for cleanup

30. How should you behave during a fire drill in the lab? a) Ignore the alarm and continue working b) Evacuate the lab immediately and follow the designated evacuation route c) Stand near the exit but wait for others to evacuate first d) Hide under the lab bench until the drill is over

Answer: b) Evacuate the lab immediately and follow the designated evacuation route

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Lab Safety Quiz PDF and Answers

Here is a quick 10-question multiple choice lab safety quiz that tests how well you understand safe procedures in the science lab. Download and print the PDF quiz or just take the quiz right here and check your answers. The answers and explanations are below the quiz.

Lab Safety Quiz

Select the best answer to each question:

(1) Eyeglasses and sunglasses are as protective as:

A. safety glasses B. fume hood shield C. chemical goggles D. none of the above

(2) If a fire starts in the laboratory:

A. open all the windows B. notify the instructor C. throw water on it D. run to the fire extinguisher

(3) Before using glassware:

A. inspect it for damage B. wash and dry it C. know how to use it D. all of the above

(4) If acid splashes onto your skin, immediately apply:

A. oil or lotion B. soap C. a strong base D. lots of water

(5) If you break a test tube and spill a chemical:

A. Use a paper towel to mop of the spill and collect the glass and throw the mess away. B. Use a paper towel for clean-up, but be sure to throw away the glass in the sharps bin. C. Collect the glass and throw it in the sharps bin and let the spill air-dry. D. Warn others of the spill and go tell the instructor.

(6) When heating substances:

A. never heat sealed containers B. use tongs and insulated gloves C. point the opening away from people D. all of the above

(7) If you get injured in lab:

A. apply first aid to yourself B. notify the instructor at once C. get treated after class

(8) If you wear contact lenses:

A. keep it to yourself B. inform your instructor C. you don’t need to wear safety goggles D. take them out before lab

(9) To pick up hot glassware:

A. first cool it with cold water B. use a paper towel for insulation C. use tongs D. pick it up by the part that looks cool

(10) To insert fire polished glass tubing into a stopper:

A. Lubricate the glass with glycerin or water. B. Protect your hands with gloves or a towel. C. Carefully twist the tubing and stopper. D. All of the above.

Review the Lab Safety Rules

Before you set foot into the laboratory, make sure you know the important lab safety rules.

Safety Quiz Answers and Explanations

Regular glasses generally don’t protect the sides of your eyes and aren’t necessarily resistant to chemicals. Also, they aren’t usually impact-resistant. That being said, they offer more protection than wearing no eyewear at all.

Opening all the windows is a bad plan because it feeds the fire with oxygen . Similarly, adding water (H2O) feeds certain types of fires. Alternatively, water may cause a chemical reaction or spread chemicals. While using the correct type of fire extinguisher is a plan, definitely don’t run to get it. The best option is notifying the instructor.

Glassware that has cracks or chips often breaks during an experiment. Using items that aren’t clean contaminates the experiment, sometimes with dire consequences. Similarly, make sure glassware is dry because some chemicals don’t play nicely with water. Finally, if you don’t know how to use a piece of glassware, you increase the risk of an accident or ruined experiment.

Applying oil or lotion just traps the acid onto the skin. Soap and other bases do neutralize acids. However, the reaction between an acid and a base is exothermic . In other words, applying a base immediately increases the risk of adding a thermal burn to your chemical burn. First, rinse the acid with plenty of water. Then, neutralize any remaining acid with soapy water or a bit of baking soda or other weak base. Don’t use a strong base because it causes a chemical burn, just like the acid.

Labs have rules about how you dispose of chemicals and sharp objects. There are also rules about reporting accidents. So, the first action you take is warning your neighbors about the accident. Then, tell your instructor. Paper towels are not always the go-to means of mopping up a spill because some chemicals react with cellulose in paper and start a fire. How the spill gets cleaned up and what happens to the chemicals and the broken glass depends on the situation and your lab’s policies.

Most substances expand upon heating, so heating a sealed container risks an explosive outcome. Don’t handle hot containers using your hands. Never point the open end of a hot container toward yourself or another person because of the risk of releasing hot material. Even if no solid or liquid escapes, the vapor pressure sends fumes in that direction.

Immediately reporting injuries, even if they are minor, is important. Then, get first aid. Yes, injuring yourself in the lab is embarrassing, but don’t make light of it, cover it up, or delay treatment.

Your instructor needs to know whether or not you wear contacts. Contacts are fine in some labs, but they are a bad plan in a chemistry wet lab or a microbiology lab because they trap chemicals or microorganisms. Taking out your contacts before lab is a good option, but only if you have glasses and are used to wearing them. Walking around the lab blindly is not safe.

Never set hot glassware on a cold counter or douse it with cold water because it could shatter. Paper towels are not great insulators and may even catch fire. Touching glass to see if it’s cool isn’t smart, especially since you can use tongs and avoid the risk of a burn.

Pushing glass tubing through your hand leaves a nasty permanent scar. Breaking the tubing and slashing yourself isn’t much better. Work slowly and gently. Don’t force the tubing. If it won’t fit, the hole in the stopper might be too small. This is a surprisingly common accident!

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Safe Laboratory Practices & Procedures

Tip #1: ask yourself, "what am i working with what are the hazards".

• Common hazards in the laboratory include: animal, biological, chemical, physical, and radiological. If there is an accident or emergency situation involving these hazards:
• Seek immediate assistance. If you are splashed by any of these materials, use running water from an eyewash station or emergency shower for at least 15 minutes or until emergency assistance arrives and provides you with different instructions.
• Report to your supervisor any accident, injury, or uncontrolled release of potentially hazardous materials - no matter how trivial the accident, injury, or release may appear.

Tip #2: Be prepared.

• Attend all required laboratory safety training prior to the start of your research assignment.
• Read all procedures and associated safety information prior to the start of an experiment.
• Perform only those experiments authorized by your supervisor.
• Follow all written and verbal instructions. Ask for assistance if you need guidance or help.
• Work under direct supervision at all times. Never work alone in the laboratory.
• Know the locations and operating procedures for all safety equipment. This includes the eyewash station and safety shower.
• Know the locations of the nearest fire alarms and at least two ways out of the building. Never use an elevator in emergencies.
• Be alert and proceed with caution at all times in the laboratory. Immediately notify the supervisor of any unsafe conditions.
• Know the proper emergency response procedures for accidents or injuries in the laboratory.

Tip #3: Prevent potential exposure.

• Conduct yourself in a responsible and professional manner at all times. No pranks. No practical jokes.
• Dress for work in the laboratory. Wear clothing and shoes that cover exposed skin and protect you from potential splashes. Tie back long hair, jewelry, or anything that may catch in equipment.
• Never eat food, drink beverages, chew gum, apply cosmetics (including lip balm), or handle contact lenses in the laboratory.
• Use a chemical fume hood or biosafety cabinet, as directed by your supervisor.
• Observe good housekeeping - keep aisles clear.
• Report damaged electrical equipment to the supervisor. Do not use damaged electrical equipment.
• Do not leave active experiments unattended. Never leave anything that is being heated or is visibly reacting unattended. 

Tip #4: Protect yourself, others, your research, and the environment.

• Practice good personal hygiene. Wash your hands after removing gloves, before leaving the laboratory, and after handling a potentially hazardous material.
• While working in the laboratory, wear personal protective equipment - eye protection, gloves, laboratory coat - as directed by your supervisor.

Lab Safety Quiz: Questions And Answers!

If a fire erupts, immediately:

Notify Ms. K

Run for the fire extinguisher.

throw water on the fire.

Open the windows.

Rate this question:

Approved eye protection devices (such as goggles) are worn in the laboratory.

To avoid eye strain

To improve your vision

Only if you do not have corrective glasses.

Any time chemicals, heat, or glassware are used.

If you do not understand a direction or part of a laboratory procedure, you should:

Figure it out as you do the lab

Try several methods until something works

Ask Ms. K before proceeding

Skip it and go on to the next part

After completing an experiment, all chemical wastes should be:

Left at your lab station for the next class

Disposed of according to your Ms. K's directions

Dumped in the sink

You have been injured in the laboratory, First, you should:

Visit the school nurse after class

See a doctor after school

Tell the Ms. K ASAP

Apply first aid yourself

Long hair in the laboratory must be:

Held away from the experiment with one hand

Always neatly groomed

Tied back or kept back entirely out of the way with a hair band

Which of the following should NOT be worn during a laboratory activity?

Loose clothing

Dangling jewelry

All of the above

Horseplay, practical jokes, or pranks in the classroom are:

Always against the rules

Okay if you are working alone.

When handling animals, students should:

Open cages only with permission

Not tease or handle animals roughly

Report bites or scratches to the teacher immediately

If a piece of equipment is not working properly, stop, turn it off, and tell:

The principal

Your lab partner

Your best friend in the class

Ms. Kilgore

When you finish working with chemicals, biological specimens, and other lab substances, always:

Treat your hands with skin lotion

Wash your hands thoroughly with soap and water

Wipe your hands on a towel

Wipe your hands on your clothes

The following activity is permitted in the laboratory:

Chewing gum

None of the above

When using a razor blade or scalpel, always cut material.

Away from you

In your hand

Perpendicular

Before you leave the science room, you should:

Clean your work area and equipment

Return all equipment to the proper area

Wash your hands with soap and water

All chemicals in the lab (including foodstuffs and store-bought chemicals) should be treated as if they could be hazardous.

Work areas should be kept clean and tidy., ​laboratory work may be started immediately upon entering the laboratory even if the teacher is not yet present., never remove chemicals, specimens, or other equipment from the laboratory., always carry a microscope using both hands., read all procedures thoroughly before performing a laboratory investigation., all unauthorized experiments are prohibited., you are allowed to enter the chemical preparation/storage area any time you need to get an item., it is okay to pick up broken glass with your bare hands as long as the glass is placed in the trash can., do not leave a lit burner unattended..

Quiz Review Timeline +

Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

• Current Version
• Mar 22, 2023 Quiz Edited by ProProfs Editorial Team
• Aug 31, 2016 Quiz Created by Kkilgore

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