Science Laboratory Safety Exam! Quiz
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Do you know anything about science laboratory safety? Do you think you could pass this quiz? Many laboratories contain significant risks. The prevention of laboratory accidents requires a lot of knowledge and attention. An example of one of the essential rules of science laboratory safety is that there is no smoking, eating, and drinking in the lab. Take this quiz and learn more about science laboratory safety.
Questions and Answers
- 1.
Flammable materials, like alcohol, should never be dispensed or used near
- A.
An open door
- B.
An open flame
- C.
Another student
- D.
A sink
Correct Answer
B. An open flameExplanation
Flammable materials, like alcohol, should never be dispensed or used near an open flame because they can easily ignite and cause a fire. Open flames produce heat and can cause the flammable material to catch fire, leading to a dangerous situation. It is important to always exercise caution and keep flammable materials away from any potential ignition sources to prevent accidents and ensure safety.Rate this question:
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- 2.
If a laboratory fire erupts, immediately
- A.
Notify your instructor
- B.
Run for the fire extinguisher
- C.
Throw water on the fire
- D.
Open the windows
Correct Answer
A. Notify your instructorExplanation
In the event of a laboratory fire, it is important to immediately notify your instructor. This is because the instructor is responsible for ensuring the safety of everyone in the laboratory and can take appropriate actions to control the situation. Running for the fire extinguisher may be necessary if it can be done safely, but notifying the instructor should be the first priority. Throwing water on the fire can potentially worsen the situation depending on the type of fire, and opening the windows may not be effective in controlling the fire.Rate this question:
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- 3.
Approved eye protection devices (such as goggles) are worn in the laboratory.
- A.
To avoid eye strain
- B.
To improve your vision
- C.
Only if you do not have corrective lenses
- D.
Any time chemicals, hear, or glassware are used
Correct Answer
D. Any time chemicals, hear, or glassware are usedExplanation
Approved eye protection devices such as goggles are worn in the laboratory any time chemicals, heat, or glassware are used. This is because these activities pose a risk of chemical splashes, heat-related injuries, or glassware breakage, which can cause harm to the eyes. Wearing eye protection helps to prevent any potential eye injuries that may occur during these activities.Rate this question:
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- 4.
If you wear contact lenses in the school laboratory,
- A.
Take them out before starting the lab
- B.
You do not have to wear protective goggles
- C.
Advise your science instructor that you wear contact lenses
- D.
Keep the information to yourself
Correct Answer
C. Advise your science instructor that you wear contact lensesExplanation
It is important to advise your science instructor that you wear contact lenses in the school laboratory. This is because wearing contact lenses in a laboratory setting can be risky. Contact lenses can trap chemicals or particles against the eye, leading to potential irritation or injury. By informing your instructor, they can provide you with appropriate safety measures and guidance to ensure your eye health and safety during lab activities.Rate this question:
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- 5.
If you do not understand a direction or part of a lab procedure, you should
- A.
Figure it out as you do the lab
- B.
Try several methods until something works
- C.
Ask the instructor before proceeding
- D.
Skip it and go on to the next part
Correct Answer
C. Ask the instructor before proceedingExplanation
When faced with a direction or part of a lab procedure that you do not understand, it is important to ask the instructor before proceeding. This is because the instructor is there to provide guidance and clarification, ensuring that you understand the task at hand and can perform it correctly. Trying to figure it out as you do the lab may lead to mistakes or incorrect results, while trying several methods until something works can be time-consuming and inefficient. Skipping it and going on to the next part may result in incomplete or inaccurate data. Therefore, asking the instructor is the best course of action to ensure a successful and accurate lab experience.Rate this question:
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- 6.
After completing an experiment, all chemical wastes should be
- A.
Left at your lab station for the next class
- B.
Disposed of according to your instructor's directions
- C.
Dumped in the sink
- D.
Taken home
Correct Answer
B. Disposed of according to your instructor's directionsExplanation
Chemical wastes should be disposed of according to the instructor's directions because they may contain hazardous substances that require specific handling and disposal methods. Improper disposal can lead to environmental contamination, health risks, and legal consequences. Following the instructor's directions ensures the safe and proper management of chemical waste, minimizing potential harm to individuals and the environment.Rate this question:
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- 7.
If a lab experiment is not completed, you should
- A.
Discuss the issue with your instructor
- B.
Sneak in after school and work alone
- C.
Come in during lunch and finish while eating lunch
- D.
Make up some results
Correct Answer
A. Discuss the issue with your instructorExplanation
The correct answer is to discuss the issue with your instructor. This is the most appropriate course of action when a lab experiment is not completed. By discussing the issue with your instructor, you can explain the reasons for not completing the experiment and seek their guidance on how to proceed. This approach promotes open communication, problem-solving, and ensures that you are following the proper protocol in the lab. Sneaking in after school, working alone, coming in during lunch, or making up results are not ethical or responsible actions and should be avoided.Rate this question:
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- 8.
You are heating a substance in a test tube. Always point the open end of the tube.
- A.
Toward yourself
- B.
Toward your lab partner
- C.
Toward another classmate
- D.
Away from all people
Correct Answer
D. Away from all peopleExplanation
When heating a substance in a test tube, it is important to point the open end of the tube away from all people. This is because during heating, the substance inside the test tube may release gases, fumes, or even explode, posing a potential risk to anyone nearby. By pointing the open end away from all people, the risk of any harm or injury is minimized, ensuring the safety of everyone in the vicinity.Rate this question:
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- 9.
You are heating a piece of glass and now want to pick it up. You should
- A.
Use a rag or paper towel
- B.
Pick up the end that looks cooler
- C.
Use tongs
- D.
Pour cold water on it
Correct Answer
C. Use tongsExplanation
Using tongs is the correct answer because they provide a safe and secure grip on the heated piece of glass. The high heat resistance of the tongs ensures that they will not melt or transfer heat to your hand, preventing any potential burns or injuries. Additionally, tongs allow for better control and precision when handling the glass, reducing the risk of dropping and breaking it.Rate this question:
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- 10.
You have been injured in the laboratory (cut, burn, etc.). First you should
- A.
Visit the school nurse after class
- B.
See a doctor after school
- C.
Tell the science instructor at once
- D.
Apply first aid yourself
Correct Answer
C. Tell the science instructor at onceExplanation
In case of an injury in the laboratory, it is important to inform the science instructor immediately. The instructor can provide guidance and assistance in dealing with the injury, ensuring that appropriate first aid measures are taken. The instructor may also be responsible for reporting the incident and ensuring that proper documentation and follow-up actions are carried out. Seeking medical attention or applying first aid can be done subsequently, but notifying the science instructor should be the first step to ensure proper handling of the situation.Rate this question:
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- 11.
When gathering glassware and equipment for an experiment, you should
- A.
Read all directions carefully to know what equipment is necessary
- B.
Examine all glassware to check for chips or cracks
- C.
Clean any glassware that appears dirty
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The correct answer is "all of the above." When gathering glassware and equipment for an experiment, it is important to read all directions carefully to know what equipment is necessary. This ensures that you have all the necessary tools to conduct the experiment accurately. Additionally, it is crucial to examine all glassware to check for chips or cracks as these can affect the experiment's results and pose safety risks. Finally, cleaning any glassware that appears dirty is important to remove any contaminants that could interfere with the experiment. Therefore, all of these steps should be followed when gathering glassware and equipment for an experiment.Rate this question:
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- 12.
You want to place a piece of glass tubing into a rubber stopper after the tubing has been fire polished and cooled. This is best done by
- A.
Lubricating the tubing with water or glycerin
- B.
Using a towel or cotton gloves for protection
- C.
Twisting the tubing and stopper carefully
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
The correct answer is "all of the above". This is because lubricating the tubing with water or glycerin helps to reduce friction and makes it easier to insert the tubing into the rubber stopper. Using a towel or cotton gloves for protection is important to prevent any cuts or injuries while handling the glass tubing. Twisting the tubing and stopper carefully ensures a secure and tight fit between the two. Therefore, all of these methods are recommended for safely and effectively placing the glass tubing into the rubber stopper.Rate this question:
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- 13.
Personal eyeglasses provide as much protection as
- A.
Face shield
- B.
Safety glasses
- C.
Splash proof chemical goggles
- D.
None of the above
Correct Answer
B. Safety glassesExplanation
Safety glasses provide protection for the eyes against potential hazards such as flying debris, chemicals, and particles. Personal eyeglasses, on the other hand, are primarily designed to correct vision and do not offer the same level of protection. Therefore, safety glasses are the only option listed that can provide adequate protection, making them the correct answer.Rate this question:
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- 14.
Long hair in the laboratory must be
- A.
Cut short
- B.
Held away from the experiment with one hand
- C.
Always neatly groomed
- D.
Tied back or kept entirely out of the way with a hair band, hairpins, or other confining device
Correct Answer
D. Tied back or kept entirely out of the way with a hair band, hairpins, or other confining deviceExplanation
Long hair in the laboratory must be tied back or kept entirely out of the way with a hair band, hairpins, or other confining device to prevent it from coming into contact with chemicals or equipment, which could pose a safety hazard. This ensures that hair does not interfere with the experiment and reduces the risk of contamination or accidents.Rate this question:
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- 15.
In a laboratory, the following should not be worn
- A.
Loose clothing
- B.
Dangling jewelry
- C.
Sandals
- D.
All of the above
Correct Answer
D. All of the aboveExplanation
Loose clothing, dangling jewelry, and sandals should not be worn in a laboratory because they can pose safety hazards. Loose clothing can get caught in equipment or chemicals, leading to accidents. Dangling jewelry can also get caught or come into contact with hazardous substances. Sandals do not provide adequate protection for the feet and can easily expose them to spills or falling objects. Therefore, all of the above options should be avoided to ensure a safe laboratory environment.Rate this question:
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- 16.
The following footwear is best in the laboratory.
- A.
Sandals
- B.
Open-toed shoes
- C.
Closed-toed shoes
- D.
Shoes appropriate for the weather
Correct Answer
C. Closed-toed shoesExplanation
Closed-toed shoes are the best footwear option in a laboratory because they provide more protection for the feet compared to sandals or open-toed shoes. In a laboratory setting, there may be hazardous materials, sharp objects, or spills that could potentially harm the feet. Closed-toed shoes offer a barrier against these potential hazards and help to minimize the risk of injury. Additionally, closed-toed shoes provide better stability and support, which is important when working in a laboratory environment where there may be slippery or uneven surfaces.Rate this question:
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- 17.
Horseplay or practical jokes in the laboratory are
- A.
Always against the rules
- B.
Okay
- C.
Not dangerous
- D.
Okay if you are working alone
Correct Answer
A. Always against the rulesExplanation
Horseplay or practical jokes in the laboratory are always against the rules because they can pose serious risks to the safety of individuals and the integrity of experiments. Laboratories are controlled environments where precise procedures and protocols need to be followed to ensure accuracy, minimize accidents, and prevent any potential harm. Engaging in horseplay or practical jokes can disrupt the workflow, distract others, and potentially lead to accidents or damage to equipment. Therefore, it is crucial to strictly adhere to the rules and maintain a safe and professional environment in the laboratory.Rate this question:
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- 18.
If a piece of equipment is not working properly, stop, turn if off, and tell
- A.
The custodian
- B.
Your lab partner
- C.
Your best friend in the class
- D.
The science instructor
Correct Answer
D. The science instructorExplanation
If a piece of equipment is not working properly, it is important to stop using it to prevent any further damage or accidents. The next step is to turn it off to ensure safety. Finally, it is crucial to inform the science instructor about the issue, as they are responsible for the lab and have the knowledge and authority to address the problem effectively. The custodian may not have the expertise to fix the equipment, and informing your lab partner or best friend in the class may not lead to a proper resolution.Rate this question:
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- 19.
If acid is splashed on your skin, wash at once with
- A.
Soap
- B.
Oil
- C.
Weak base
- D.
Plenty of water
Correct Answer
D. Plenty of waterExplanation
When acid is splashed on the skin, it can cause burns and damage the tissue. Washing the affected area with plenty of water is the correct response because water helps to dilute the acid and remove it from the skin. This helps to minimize the extent of the damage and prevent further harm. Soap or oil may not be effective in neutralizing the acid, and using a weak base could potentially worsen the situation. Therefore, the best course of action is to rinse the area with plenty of water as quickly as possible.Rate this question:
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- 20.
When you finish working with chemicals, biological specimens, and other lab substances, always
- A.
Treat your hands with skin lotion
- B.
Wash your hands thoroughly with soap and water
- C.
Wipe your hands on a towel
- D.
Wipe your hands on your clothes
Correct Answer
B. Wash your hands thoroughly with soap and waterExplanation
The correct answer is to wash your hands thoroughly with soap and water. This is because washing your hands with soap and water is the most effective way to remove any chemicals, biological specimens, or other lab substances that may be on your hands. Skin lotion may not effectively remove these substances, wiping your hands on a towel or clothes may spread the substances to other surfaces, and wiping your hands on clothes may not effectively remove the substances. Therefore, washing your hands with soap and water is the best option to ensure cleanliness and safety.Rate this question:
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- 21.
Hot glass looks the same as cold glass.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Hot glass looks the same as cold glass because glass is a transparent material, meaning that light can pass through it easily. When glass is heated, its molecules vibrate faster, causing the glass to expand and become hotter. However, this change in temperature does not affect the appearance of the glass itself. Whether it is hot or cold, glass will still appear clear and transparent to our eyes, giving the illusion that it looks the same regardless of its temperature.Rate this question:
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- 22.
All chemicals in the lab are to be considered dangerous.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement indicates that all chemicals in the lab should be considered dangerous. This means that regardless of the specific type or nature of the chemical, it should be treated with caution and handled carefully. This emphasizes the importance of following proper safety protocols and procedures when working with any chemicals in the lab setting.Rate this question:
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- 23.
Return all unused chemicals to their original containers.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement "Return all unused chemicals to their original containers" is incorrect. Unused chemicals should not be returned to their original containers as this can lead to cross-contamination and potential hazards. Instead, unused chemicals should be properly disposed of according to the appropriate safety guidelines and regulations.Rate this question:
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- 24.
Work areas should be kept clean.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Keeping work areas clean is important for several reasons. First, a clean work area promotes efficiency and productivity. When everything is organized and in its proper place, it is easier to find tools and materials, reducing time wasted searching for them. Second, a clean work area promotes safety. Cluttered and dirty workspaces can lead to accidents and injuries. Additionally, a clean work area helps to maintain a professional image and creates a positive work environment. It shows that employees take pride in their work and value their surroundings. Overall, keeping work areas clean is essential for a well-functioning and safe workplace.Rate this question:
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- 25.
Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Drawing liquid into a pipet using your mouth is not recommended because it can be unsafe and unhygienic. Using your mouth to create suction can introduce contaminants into the liquid being measured, and there is a risk of accidentally ingesting harmful substances. Additionally, some liquids may be toxic or corrosive, posing a danger to the person using their mouth to draw them into the pipet. It is best practice to use a pipetting device or a bulb to draw liquid into a pipet, ensuring accuracy and safety.Rate this question:
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- 26.
Chipped or cracked glassware is okay to use.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Chipped or cracked glassware should not be used because it can pose a safety risk. The cracks or chips can weaken the glass, causing it to break easily and potentially causing injury. Additionally, chipped or cracked glassware can also affect the quality of the contents, such as leaking or contaminating the substances being stored or served. Therefore, it is important to discard or replace any glassware that is chipped or cracked.Rate this question:
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- 27.
Read all procedures thoroughly before entering the laboratory.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement suggests that it is important to read all procedures thoroughly before entering the laboratory. This is crucial in order to ensure safety and understand the correct steps to follow while conducting experiments. Failing to read the procedures properly may result in accidents, mistakes, or incorrect results. Therefore, it is necessary to read all procedures thoroughly before entering the laboratory to ensure a safe and successful experiment.Rate this question:
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- 28.
All unauthorized experiments are prohibited.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
The statement "All unauthorized experiments are prohibited" means that any experiments that are not authorized are not allowed. This implies that only authorized experiments are permitted, and any unauthorized ones are prohibited. Therefore, the correct answer is True, as it aligns with the given statement.Rate this question:
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- 29.
You are allowed to enter the chemical preparation/storage area any time you need to get an item.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement is false because in a chemical preparation/storage area, access should be restricted to authorized personnel only. This is to ensure safety and prevent any accidents or mishandling of hazardous chemicals. Unauthorized entry can lead to potential risks and violations of safety protocols.Rate this question:
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- 30.
Laboratory aprons should be worn during all lab activities.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Laboratory aprons should be worn during all lab activities to protect the person wearing it from potential hazards such as chemicals, spills, and splashes. Aprons provide a barrier between the person's clothing and the substances being used in the lab, reducing the risk of contamination or injury. Wearing a laboratory apron is a safety precaution that helps maintain a safe working environment and minimize the chances of accidents or harm.Rate this question:
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- 31.
It is okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Picking up broken glass with bare hands is not safe, even if it is placed in the trash. Broken glass can cause cuts and injuries, and it is always recommended to use protective gloves or tools to handle it. Therefore, the statement is false.Rate this question:
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- 32.
Never leave a lit burner unattended.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Leaving a lit burner unattended can be extremely dangerous as it can lead to accidents such as fires, burns, or even explosions. Unattended burners can easily cause kitchen fires if flammable materials come into contact with the open flame. Additionally, if someone accidentally knocks over a pot or pan on the burner, it can result in serious burns or injuries. Therefore, it is important to always stay vigilant and never leave a lit burner unattended to ensure the safety of yourself and others.Rate this question:
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- 33.
Where is the Fire Blanket and Waste Disposal located?
- A.
Front of the classroom
- B.
Back of the classroom
Correct Answer
A. Front of the classroomExplanation
The fire blanket and waste disposal are located in the front of the classroom.Rate this question:
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- 34.
Where is the Fire Alarm located?
- A.
Front of the classroom
- B.
Back of the classroom
Correct Answer
B. Back of the classroomExplanation
The fire alarm is located at the back of the classroom.Rate this question:
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- 35.
Where is the Emergency Wash Station located?
- A.
Front of the classroom
- B.
Back of the classroom
Correct Answer
A. Front of the classroomExplanation
The Emergency Wash Station is located at the front of the classroom.Rate this question:
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Current Version
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Mar 21, 2023Quiz Edited by
ProProfs Editorial Team -
Aug 30, 2016Quiz Created by
Frances Cummings
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