Laboratory Safety and Procedures
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Questions and Answers

Flammable materials, like alcohol, should never be dispensed or used near?

an open flame

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

wash hands with soap and water

If an acid is splashed on your skin, you should wash at once with?

a lot of water

If a piece of equipment is not working properly, you should stop, turn it off, and?

<p>tell your teacher</p> Signup and view all the answers

Horseplay or practical jokes in the laboratory are?

<p>Always against the rules</p> Signup and view all the answers

The following footwear is best in the laboratory?

<p>Closed-toed shoes</p> Signup and view all the answers

In a laboratory, the following should not be worn?

<p>All of the above</p> Signup and view all the answers

Long hair in the laboratory must be?

<p>Tied back or kept entirely out of the way</p> Signup and view all the answers

Personal eyeglasses provide as much protection as goggles.

<p>False</p> Signup and view all the answers

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?

<p>lubricating the tubing with water or glycerin, using a towel or cotton gloves for protection, and twisting the tubing and stopper carefully</p> Signup and view all the answers

When gathering glassware and equipment for an experiment, you should?

<p>read all directions carefully to know what equipment is necessary, examine all glassware to check for chips or cracks, and clean any glassware that appears dirty</p> Signup and view all the answers

You have been injured in the laboratory (cut, burn, etc.). First you should?

<p>tell your teacher</p> Signup and view all the answers

You are heating a piece of glass and now want to pick it up. You should?

<p>always use tongs</p> Signup and view all the answers

If a laboratory fire erupts, immediately you should?

<p>tell your teacher</p> Signup and view all the answers

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

<p>any time chemicals, heat or glassware are used</p> Signup and view all the answers

If you wear contact lenses in the school laboratory, you should?

<p>tell your teacher</p> Signup and view all the answers

If you do not understand a direction or part of a lab procedure, you should?

<p>ask the instructor before proceeding</p> Signup and view all the answers

After completing an experiment, all chemical wastes should be disposed of?

<p>according to your instructor's directions</p> Signup and view all the answers

If a lab experiment is not completed, you should?

<p>tell your teacher</p> Signup and view all the answers

You are heating a substance in a test tube. Always point the open end of the tube?

<p>away from everyone</p> Signup and view all the answers

Does hot glass look the same as cold glass?

<p>False</p> Signup and view all the answers

All chemicals in the lab are to be considered dangerous.

<p>True</p> Signup and view all the answers

Return all unused chemicals to their original containers.

<p>False</p> Signup and view all the answers

Work areas should always be kept tidy and clean.

<p>True</p> Signup and view all the answers

Pipets are used to measure and dispense small amounts of liquids. You should draw the liquid into the pipet using your mouth.

<p>False</p> Signup and view all the answers

Laboratory work can be started immediately upon entering the laboratory even if the instructor is not yet present.

<p>False</p> Signup and view all the answers

Never leave a lit burner unattended.

<p>True</p> Signup and view all the answers

Never remove chemicals or other equipment from the laboratory.

<p>True</p> Signup and view all the answers

Chipped or cracked glassware is okay to use.

<p>False</p> Signup and view all the answers

It's okay to pick up broken glass with your bare hands as long as the glass is placed in the trash.

<p>False</p> Signup and view all the answers

You are allowed to enter the chemical preparation/storage area any time you need to get an item.

<p>False</p> Signup and view all the answers

All unauthorized experiments are prohibited.

<p>True</p> Signup and view all the answers

Read all procedures thoroughly before entering the laboratory.

<p>True</p> Signup and view all the answers

Study Notes

Laboratory Safety Guidelines

  • Flammable materials, such as alcohol, must not be used near an open flame to prevent fires.
  • Always wash hands with soap and water after working with chemicals and biological specimens.
  • In case of acid contact with skin, immediate washing with plenty of water is essential.
  • Report any malfunctioning equipment to your teacher without hesitation.
  • Horseplay and practical jokes are strictly prohibited in the laboratory due to safety concerns.
  • Closed-toed shoes are required in the laboratory for foot protection.

Personal Protective Equipment

  • Loose clothing, dangling jewelry, and sandals should not be worn in the laboratory for safety reasons.
  • Long hair must be tied back or secured to prevent accidents.
  • Personal eyeglasses do not provide adequate protection; goggles are necessary when handling chemicals or heat.
  • Contact lens wearers must inform their instructor for appropriate precautions.

Laboratory Procedures

  • Lubricate glass tubing with water or glycerin before inserting into rubber stoppers, using gloves for protection.
  • Gather glassware and equipment only after reading directions and checking for any defects.
  • Report any injuries to your teacher immediately to receive proper care.
  • Use tongs when handling hot glassware to avoid burns.

Emergency Responses

  • In the event of a fire, notify your teacher right away to ensure safety protocols are followed.
  • Dispose of chemical wastes according to your instructor's guidance after completing experiments.
  • If unsure about any instructions, always ask your instructor before proceeding further.

General Safety Practices

  • Always point test tubes away from people when heating to prevent accidents.
  • Hot glass looks identical to cold glass; treat all glassware with caution.
  • Assume all chemicals are hazardous regardless of their appearance.
  • Used chemicals must never be returned to their original containers due to contamination risks.
  • Keep work areas tidy and organized to minimize hazards.

Prohibited Actions

  • Never attempt to start laboratory work without the instructor's presence and directions.
  • Leaving a lit burner unattended is highly dangerous and strictly forbidden.
  • Do not take chemicals or equipment out of the laboratory under any circumstances.
  • Chipped or cracked glassware is unsafe and should not be used.
  • Broken glass should never be handled with bare hands; proper disposal methods are necessary.

Compliance Rules

  • Unauthorized experiments are never allowed in the laboratory.
  • Read all procedures thoroughly before entering to ensure safety and understanding.

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Description

This quiz covers essential laboratory safety guidelines, personal protective equipment requirements, and proper procedures to follow in a lab setting. Understanding these rules is crucial for maintaining safety while handling chemicals and conducting experiments. Test your knowledge on how to ensure a secure laboratory environment.

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