Practice Science Safety Test
Before you head on out to the lab there are some safety issues you need to be aware of. To test out what you know and if you need a refresher class before tomorrow we have prepared this simple test. Take it out and the results will guide you. Good luck!
Questions and Answers
- 1.
Eye protection, such as goggles, are worn in the laboratory
- A.
To see better.
- B.
To avoid eye strain.
- C.
Only if you don't wear glasses.
- D.
Every time you use chemicals, heat, or glassware.
Correct Answer
D. Every time you use chemicals, heat, or glassware.Explanation
Eye protection, such as goggles, is worn in the laboratory every time you use chemicals, heat, or glassware. This is because these activities pose potential risks to the eyes. Chemicals can splash or release fumes that can cause harm, heat can cause burns or explosions, and glassware can break and cause injury. Therefore, wearing goggles is necessary to protect the eyes from any potential hazards that may occur during these laboratory activities.Rate this question:
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- 2.
If you wear contact lenses during a lab,
- A.
Take them out before starting the lab.
- B.
You do not have to wear goggles.
- C.
Tell your teacher that you wear contact lenses.
- D.
It is unnecessary to tell your teacher.
Correct Answer
C. Tell your teacher that you wear contact lenses.Explanation
It is important to tell your teacher that you wear contact lenses because wearing them during a lab can pose a safety risk. Contact lenses can trap chemicals or particles against your eyes, causing irritation or injury. If an accident occurs, it may be necessary for medical professionals to know that you are wearing contact lenses. By informing your teacher, they can take necessary precautions to ensure your safety, such as providing appropriate eye protection or advising you to remove your contact lenses before starting the lab.Rate this question:
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- 3.
If you don't understand a direction or part of a lab procedure, you should
- A.
Just figure it out as you go.
- B.
Try many different things until something works.
- C.
Ask your teacher before moving forward.
- D.
Skip it and move on.
Correct Answer
C. Ask your teacher before moving forward.Explanation
When faced with a direction or part of a lab procedure that is unclear or not understood, the best course of action is to ask the teacher before proceeding. This ensures that any confusion or potential mistakes can be clarified or corrected by the teacher, preventing any potential issues or errors in the lab. It is important to seek guidance and clarification from the teacher to ensure a safe and successful completion of the lab.Rate this question:
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- 4.
After completing an experiment, all chemical wastes should be
- A.
Left at your table for the next class.
- B.
Disposed of according to your teacher's directions.
- C.
Dumped in the sink.
- D.
Dumped in the trash can.
Correct Answer
B. Disposed of according to your teacher's directions.Explanation
After completing an experiment, it is important to dispose of all chemical wastes properly. Leaving them at the table for the next class may pose a safety risk. Dumping them in the sink can lead to environmental pollution or damage the plumbing system. Similarly, dumping them in the trash can also poses risks to both human health and the environment. Therefore, the correct answer is to dispose of the chemical wastes according to the teacher's directions, as they will provide specific instructions on how to safely and responsibly handle and dispose of the wastes.Rate this question:
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- 5.
If an experiment is not finished, you should
- A.
Talk to your teacher.
- B.
Come in after school and work alone without the teacher present.
- C.
Come in during lunch and finish while eating.
- D.
Make up results.
Correct Answer
A. Talk to your teacher.Explanation
If an experiment is not finished, it is important to talk to your teacher. This is because the teacher can provide guidance and instructions on how to complete the experiment properly. They can also address any concerns or difficulties that the student may have encountered during the experiment. It is not advisable to work alone without the teacher present as this may lead to incorrect results or incomplete data. Coming in during lunch and finishing while eating is not a suitable option as it may compromise the quality of the experiment. Making up results is unethical and goes against the principles of scientific integrity.Rate this question:
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- 6.
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 your teacher.
- D.
Away from all people.
Correct Answer
D. Away from all people.Explanation
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 heating the substance can cause it to release gases, fumes, or even shatter the test tube, which could potentially harm anyone standing nearby. Therefore, to ensure the safety of everyone in the vicinity, it is necessary to direct the open end of the tube away from all people.Rate this question:
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- 7.
You are heating a piece of glass and now want to pick it up.
- A.
You need to use paper towels.
- B.
You should pick up the end that looks cooler.
- C.
You should use tongs.
- D.
Make sure to pour cold water on it first.
Correct Answer
C. You should use tongs.Explanation
When heating a piece of glass, it becomes extremely hot and can cause burns if touched directly. Therefore, using paper towels or picking up the end that looks cooler is not advisable as it does not provide enough protection. Tongs, on the other hand, are specifically designed to handle hot objects safely, allowing you to pick up the heated glass without the risk of burning yourself.Rate this question:
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- 8.
You have been burned in the laboratory. First you should
- A.
Go to the nurse later.
- B.
See a doctor whenever you can get an appointment.
- C.
Tell your teacher immediately.
- D.
Take care of it yourself.
Correct Answer
C. Tell your teacher immediately.Explanation
In case of being burned in the laboratory, it is important to inform the teacher immediately. The teacher is responsible for ensuring the safety of the students and can provide immediate assistance or medical attention if required. Delaying the notification may result in further complications or delays in receiving proper treatment.Rate this question:
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- 9.
When gathering glassware and equipment for an experiment, you should
- A.
Read the directions.
- B.
Look for chips or cracks in your glassware.
- C.
Clean dirty glassware.
- D.
All of the above.
Correct Answer
D. All of the above.Explanation
When gathering glassware and equipment for an experiment, it is important to read the directions to ensure that you understand the proper procedures and precautions. Additionally, looking for chips or cracks in your glassware is crucial to avoid any potential accidents or contamination during the experiment. Lastly, cleaning dirty glassware is necessary to remove any residue or impurities that could affect the accuracy of your results. Therefore, all of the mentioned actions should be taken when gathering glassware and equipment for an experiment.Rate this question:
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- 10.
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 glycerine.
- B.
Using a towel for protection.
- C.
Twisting gently.
- D.
All of the above.
Correct Answer
D. All of the above.Explanation
All of the options mentioned are valid methods for placing a piece of glass tubing into a rubber stopper. Lubricating the tubing with glycerine helps in reducing friction and makes it easier to insert. Using a towel for protection provides a cushioning effect and prevents the glass from getting damaged. Twisting gently helps in guiding the tubing into the stopper without applying excessive force. Therefore, all of these methods can be used together to ensure a safe and successful insertion of the glass tubing into the rubber stopper.Rate this question:
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- 11.
Personal glasses give as much protection as
- A.
A face shield.
- B.
Safety glasses.
- C.
Chemical goggles.
- D.
None of the above.
Correct Answer
D. None of the above.Explanation
The given answer "none of the above" is correct because personal glasses do not provide the same level of protection as a face shield, safety glasses, or chemical goggles. Personal glasses are primarily used for vision correction and do not have the same impact resistance or coverage as specialized safety eyewear. Face shields provide full-face protection from splashes, flying debris, and chemicals, while safety glasses and chemical goggles are specifically designed to protect the eyes from hazards in different environments. Therefore, personal glasses cannot be considered as an equivalent alternative to these protective eyewear options.Rate this question:
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- 12.
Long hair during a lab must be
- A.
Cut shorter.
- B.
Held back with your hands.
- C.
Neatly groomed.
- D.
Tied back.
Correct Answer
D. Tied back.Explanation
In a lab, it is important to keep long hair tied back to ensure safety and prevent any contamination or interference with experiments or equipment. Tying back the hair helps to minimize the risk of hair getting caught in machinery or chemicals, reducing the chances of accidents or injuries. It also ensures that the hair does not obstruct the view or interfere with the work being done. Therefore, tying back long hair is the appropriate and safest option in a lab setting.Rate this question:
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- 13.
What shouldn't you wear in the laboratory?
- A.
Loose clothing
- B.
Dangling jewelry
- C.
Sandals
- D.
All of the above.
Correct Answer
D. All of the above.Explanation
In a laboratory, it is important to prioritize safety. Loose clothing can easily catch fire or get entangled in equipment, posing a risk of injury. Dangling jewelry can also get caught in machinery or chemicals, causing harm. Sandals do not provide adequate foot protection and can expose the feet to spills or falling objects. Therefore, all of the options mentioned (loose clothing, dangling jewelry, and sandals) should be avoided in the laboratory to ensure a safe working environment.Rate this question:
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- 14.
Which footwear is best to wear during a lab?
- A.
Sandals
- B.
Open-toed shoes
- C.
Closed-toed shoes
- D.
High heels
Correct Answer
C. Closed-toed shoesExplanation
Closed-toed shoes are the best footwear to wear during a lab because they provide protection to the entire foot, including the toes. In a lab setting, there may be hazardous materials, sharp objects, or heavy equipment that can cause harm if dropped or spilled. Closed-toed shoes offer a barrier against such risks, reducing the chances of injury. Sandals, open-toed shoes, and high heels do not provide the same level of protection and can leave the feet vulnerable to potential accidents or injuries.Rate this question:
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- 15.
Horseplay and joking around in the lab are
- A.
Never allowed.
- B.
Okay.
- C.
Not dangerous.
- D.
Okay if you're working alone.
Correct Answer
A. Never allowed.Explanation
Horseplay and joking around in the lab are never allowed because they can pose serious risks and hazards. Laboratories are controlled environments where experiments and scientific work are conducted, and any kind of playful behavior can lead to accidents, damage to equipment, or compromise the safety of individuals. It is important to maintain a serious and focused atmosphere in the lab to ensure the well-being of everyone involved and the integrity of the scientific work being carried out.Rate this question:
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- 16.
If a piece of equipment is not working, stop, turn it off, and tell
- A.
The custodian.
- B.
Your lab partner.
- C.
Your friend.
- D.
Your teacher.
Correct Answer
D. Your teacher.Explanation
If a piece of equipment is not working, it is important to stop using it and turn it off to prevent any further damage or accidents. The correct course of action is to inform the person responsible for the equipment, which in this case would be the teacher. The teacher can then take the necessary steps to either fix the equipment or arrange for a professional to do so. The custodian may not have the expertise to handle the equipment, and it is not appropriate to involve lab partners or friends who may not have the authority or knowledge to deal with the situation.Rate this question:
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- 17.
When you finish working with chemicals, always
- A.
Use hand lotion.
- B.
Wash your hands with soap and water.
- C.
Wipe your hands off on a towel.
- D.
Wipe your hands off on your clothes.
Correct Answer
B. Wash your hands with soap and water.Explanation
When working with chemicals, it is important to wash your hands with soap and water after finishing. This is because chemicals can be harmful and may leave residue on your hands, which can lead to skin irritation, allergic reactions, or even chemical burns. Washing your hands with soap and water helps to remove any traces of chemicals and ensures that your hands are clean and safe. Using hand lotion, wiping your hands off on a towel, or wiping your hands off on your clothes may not effectively remove the chemicals and could potentially spread them to other surfaces or cause skin problems.Rate this question:
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- 18.
Cold glass looks the same as hot glass.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
When observing a glass object, whether it is hot or cold, it appears the same visually. The temperature of the glass does not affect its appearance, so it is true that cold glass looks the same as hot glass.Rate this question:
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- 19.
All chemicals should be considered dangerous until your teacher tells you otherwise.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
It is important to consider all chemicals as dangerous until your teacher provides further instructions because some chemicals can be harmful or toxic if not handled properly. By assuming that all chemicals are dangerous, you can take necessary precautions and follow safety protocols to ensure your well-being and prevent any accidents or harm. Therefore, the statement "All chemicals should be considered dangerous until your teacher tells you otherwise" is true.Rate this question:
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- 20.
You should always return all unused chemicals to their original containers.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Returning all unused chemicals to their original containers may not always be the best practice. Some chemicals may react with each other or degrade over time, causing potential hazards. It is important to follow proper disposal procedures for unused chemicals to ensure safety and prevent any environmental contamination. Therefore, the statement is false.Rate this question:
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- 21.
When you complete labs, you should clean up your station.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Cleaning up your station after completing labs is a responsible and necessary practice. It helps maintain a clean and organized workspace, prevents accidents or injuries caused by clutter, and ensures that the next person using the station can start their work without any inconvenience. Additionally, cleaning up also promotes good hygiene and reduces the risk of contamination or cross-contamination. Therefore, it is important to clean up your station after completing labs.Rate this question:
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- 22.
Pipets measure and dispense small amounts of liquid. You use your mouth to draw the liquid into the pipette.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Using your mouth to draw liquid into a pipette is incorrect and potentially dangerous. Pipets are typically used in laboratories and require proper handling and techniques. Using your mouth can introduce contaminants and is not a precise method of measurement. Instead, a pipette bulb or a mechanical pipette dispenser should be used to draw and dispense liquid accurately.Rate this question:
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- 23.
Laboratory work can be started as soon as you enter class, even if your teacher isn't in the room.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Laboratory work should not be started without the presence of the teacher in the room. It is important to wait for the teacher to be present in order to ensure proper supervision, guidance, and safety measures are in place. Starting laboratory work without the teacher can lead to potential accidents or mistakes that could have been prevented with proper guidance.Rate this question:
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- 24.
You should never remove chemicals from the science classroom.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Removing chemicals from the science classroom is not recommended because they are essential for conducting experiments and demonstrations. Chemicals are necessary to teach students about chemical reactions, properties of different substances, and safety protocols. Without chemicals, students would not have the opportunity to gain hands-on experience and develop critical thinking skills. Additionally, removing chemicals would limit the scope of scientific exploration and hinder the learning process in a science classroom. Therefore, it is important to keep chemicals in the science classroom.Rate this question:
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- 25.
You should use chipped or cracked glassware.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Using chipped or cracked glassware is not recommended. Chipped or cracked glassware can pose a safety hazard as it may break further during use, potentially causing injury or contamination of substances being handled. It is important to use glassware that is in good condition to ensure accurate and safe experimentation or handling of materials.Rate this question:
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- 26.
You need to read all procedures before entering the laboratory.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
To ensure safety and prevent accidents, it is important to read all procedures before entering the laboratory. This is because procedures outline the necessary precautions, equipment usage, and steps to be followed during experiments. By reading all procedures beforehand, individuals can familiarize themselves with the potential risks and necessary precautions, reducing the chances of accidents or mishaps. Therefore, it is crucial to read all procedures before entering the laboratory to prioritize safety.Rate this question:
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- 27.
Unauthorized experiments are prohibited.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Unauthorized experiments are prohibited means that conducting experiments without proper authorization or permission is not allowed. This implies that there are rules or regulations in place that govern the approval process for conducting experiments. Therefore, the statement "Unauthorized experiments are prohibited" is true, as it indicates that there are restrictions on conducting experiments without proper authorization.Rate this question:
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- 28.
You are allowed to enter the chemical storage area whenever you need to get an item.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
The statement contradicts basic safety protocols for chemical storage areas. Chemical storage areas are typically restricted areas due to the potential hazards associated with the chemicals stored there. Access to these areas is usually limited to authorized personnel only, who have received proper training and understand the safety procedures. Allowing anyone to enter the chemical storage area without restrictions would pose a significant risk to their safety and the safety of others. Therefore, the correct answer is False.Rate this question:
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- 29.
You're allowed to pick up broken glass with your hands and place it in the trash.
- A.
True
- B.
False
Correct Answer
B. FalseExplanation
Picking up broken glass with bare hands can be extremely dangerous as it can cause serious cuts and injuries. It is recommended to always use protective gloves or a broom and dustpan to handle broken glass and dispose of it safely. Therefore, the correct answer is false.Rate this question:
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- 30.
You should 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 or burns. It is important to always stay vigilant and keep an eye on any open flames in order to prevent any potential hazards. By ensuring that someone is present and monitoring the burner at all times, the risk of accidents can be significantly reduced. Therefore, it is crucial to never leave a lit burner unattended.Rate this question:
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- 31.
Flammable materials should never be used
- A.
Near an open flame.
- B.
Beside an open door.
- C.
When working with another student.
- D.
Near a sink.
Correct Answer
A. Near an open flame.Explanation
Flammable means easily set on fire.Rate this question:
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- 32.
If a fire erupts in the lab, immediately
- A.
Use a fire extinguisher.
- B.
Notify your teacher.
- C.
Throw water on the fire.
- D.
Leave the room.
Correct Answer
B. Notify your teacher.Explanation
You should always notify your teacher first-just in case you don't understand how to use a fire extinguisher.Rate this question:
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- 33.
If an acid is splashed on you skin, wash it immediately with
- A.
Water
- B.
Soap
- C.
Oil
- D.
Weak base
Correct Answer
A. WaterExplanation
You should always rinse chemicals off of your skin with water first. Soap may react with the chemical, so don't use it until your skin is rinsed clean.Rate this question:
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- 34.
Laboratory aprons can be worn during lab activities.
- A.
True
- B.
False
Correct Answer
A. TrueExplanation
Laboratory aprons are worn during lab activities to protect the wearer's clothing from spills, splashes, and other potential hazards. They act as a barrier between the chemicals or substances being used in the lab and the person wearing the apron. Wearing a laboratory apron helps to minimize the risk of contamination and injury, making it an essential safety precaution in laboratory settings. Therefore, the statement "Laboratory aprons can be worn during lab activities" is true.Rate this question:
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Mar 21, 2023Quiz Edited by
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Aug 28, 2013Quiz Created by
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