Podcast
Questions and Answers
Flammable materials, like alcohol, should never be dispensed or used near?
Flammable materials, like alcohol, should never be dispensed or used near?
- A sink
- An open flame (correct)
- Another student
- An open door
If a laboratory fire erupts, immediately?
If a laboratory fire erupts, immediately?
- Open the windows
- Throw water on the fire
- Run for the fire extinguisher
- Notify your instructor (correct)
Approved eye protection devices (such as goggles) are worn in the laboratory?
Approved eye protection devices (such as goggles) are worn in the laboratory?
- Only if you don't have corrective glasses
- To avoid eye strain
- To improve your vision
- Any time chemicals, heat or glassware are used (correct)
If you wear contact lenses in the school laboratory?
If you wear contact lenses in the school laboratory?
If you do not understand a direction or part of a lab procedure, you should?
If you do not understand a direction or part of a lab procedure, you should?
After completing an experiment, all chemical wastes should be?
After completing an experiment, all chemical wastes should be?
If a lab experiment is not completed, you should?
If a lab experiment is not completed, you should?
When heating a substance in a test tube, always point the open end of the tube?
When heating a substance in a test tube, always point the open end of the tube?
You are heating a piece of glass and now want to pick it up. You should?
You are heating a piece of glass and now want to pick it up. You should?
If you have been injured in the laboratory (cut, burn, etc.), first you should?
If you have been injured in the laboratory (cut, burn, etc.), first you should?
When gathering glassware and equipment for an experiment, you should?
When gathering glassware and equipment for an experiment, you should?
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?
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?
Personal eyeglasses provide as much protection as?
Personal eyeglasses provide as much protection as?
Long hair in the laboratory must be?
Long hair in the laboratory must be?
In a laboratory, the following should not be worn?
In a laboratory, the following should not be worn?
The following footwear is best in the laboratory?
The following footwear is best in the laboratory?
Horseplay or practical jokes in the laboratory are?
Horseplay or practical jokes in the laboratory are?
If a piece of equipment is not working properly, stop, turn it off, and tell?
If a piece of equipment is not working properly, stop, turn it off, and tell?
If an acid is splashed on your skin, wash at once with?
If an acid is splashed on your skin, wash at once with?
When you finish working with chemicals, biological specimens, and other lab substances, always?
When you finish working with chemicals, biological specimens, and other lab substances, always?
Draw a diagram of your science room and label the locations of the following: Fire Blanket, Fire Extinguisher(s), Exits, Eyewash Station, Emergency Shower, Closest Fire Alarm Station, Waste Disposal Container(s)
Draw a diagram of your science room and label the locations of the following: Fire Blanket, Fire Extinguisher(s), Exits, Eyewash Station, Emergency Shower, Closest Fire Alarm Station, Waste Disposal Container(s)
Hot glass looks the same as cold glass.
Hot glass looks the same as cold glass.
All chemicals in the lab are to be considered dangerous.
All chemicals in the lab are to be considered dangerous.
Return all unused chemicals to their original containers.
Return all unused chemicals to their original containers.
Work areas should be kept clean and tidy.
Work areas should be kept clean and tidy.
Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.
Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.
Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.
Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.
Never remove chemicals or other equipment from the laboratory.
Never remove chemicals or other equipment from the laboratory.
Chipped or cracked glassware is okay to use.
Chipped or cracked glassware is okay to use.
Read all procedures thoroughly before entering the laboratory.
Read all procedures thoroughly before entering the laboratory.
All unauthorized experiments are prohibited.
All unauthorized experiments are prohibited.
You are allowed to enter the chemical preparation/storage area any time you need to get an item.
You are allowed to enter the chemical preparation/storage area any time you need to get an item.
Laboratory aprons should be worn during all lab activities.
Laboratory aprons should be worn during all lab activities.
It's okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.
It's okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.
Never leave a lit burner unattended.
Never leave a lit burner unattended.
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Study Notes
Safety Guidelines in the Laboratory
- Flammable materials, such as alcohol, must never be used near an open flame.
- In the event of a laboratory fire, promptly notify your instructor instead of attempting to extinguish it yourself.
- Always wear approved eye protection devices (goggles) when using chemicals, heat, or glassware.
- Contact lens wearers should remove lenses before starting a lab experiment to ensure safety.
Procedure Compliance
- Clarify any unclear directions or lab procedures by asking the instructor before proceeding.
- Chemical waste must be disposed of as per the instructor's directions after completing an experiment.
- Discuss incomplete experiments with the instructor instead of trying to finish them independently.
Safe Practices
- When heating a test tube, always point the open end away from yourself and others.
- Use tongs when handling heated glassware to prevent burns.
- Report any injuries (cuts, burns, etc.) to the science instructor immediately.
Equipment Handling
- Inspect glassware for chips or cracks before use, and clean any dirty glassware as necessary.
- When inserting glass tubing into a rubber stopper, lubricate the tubing and use appropriate protection like gloves.
Protective Gear and Attire
- Personal eyeglasses provide equivalent protection to safety glasses but not to splashproof goggles.
- Long hair must be secured away from the experiment for safety.
- Loose clothing, dangling jewelry, and sandals are prohibited in the laboratory for safety reasons.
Safety Rules and Emergency Protocol
- Horseplay is strictly forbidden in lab environments.
- If equipment malfunctions, turn it off and inform the science instructor.
- Rinse skin immediately with plenty of water if acidic substances splash onto it.
Hygiene and Cleanliness
- Always wash hands thoroughly with soap and water after handling chemicals or biological materials.
- Laboratories should be kept clean and tidy for a safe working environment.
True or False Safety Statements
- Treat all chemicals in the lab as potentially dangerous.
- Return unused chemicals to their original containers is not allowed.
- Always follow the rule: no unauthorized experiments are permitted.
- Laboratory aprons should be worn during all activities for protection.
General Lab Awareness
- Hot glass can appear identical to cold glass; assume all glass is hot until confirmed otherwise.
- Never use chipped or cracked glassware as it poses a safety risk.
- Entering the chemical preparation area requires permission and should not be done without supervision.
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