Science Lab Safety Contract
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Questions and Answers

Which item is NOT allowed in the laboratory?

  • Loose clothing (correct)
  • Safety goggles
  • Laboratory aprons
  • Tied back hair

It is permissible to eat food in the laboratory.

False (B)

What should you do if there is an accident in the laboratory?

Report it to the instructor immediately.

All students must wear _____ during laboratory activities.

<p>lab aprons</p> Signup and view all the answers

Match the following actions with their corresponding safety rules:

<p>Tying hair back = Prevents accidents caused by long hair Cleaning work surfaces = Maintains a safe environment after experiments Wearing shoes that cover feet = Protects against spills and falling equipment Reading labels carefully = Ensures safe use of chemicals and apparatus</p> Signup and view all the answers

What should you do before using laboratory equipment?

<p>Read the instructions carefully (C)</p> Signup and view all the answers

Students may work alone in the lab if they feel confident.

<p>False (B)</p> Signup and view all the answers

What type of shoes is prohibited in the laboratory?

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

What should be done with electrical equipment when not in use?

<p>Turn it off (D)</p> Signup and view all the answers

It is safe to return unused chemicals to their original containers.

<p>False (B)</p> Signup and view all the answers

What is the proper technique for wafting chemical vapors?

<p>Waft the vapors towards your nose using your hand, rather than inhaling directly.</p> Signup and view all the answers

Always keep work areas clean and ______.

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

Match the following safety practices with their descriptions:

<p>Turn off electrical equipment = To prevent accidents Wafting chemical vapors = To avoid direct inhalation Store personal items away = To keep work areas clear Handle living organisms humanely = To comply with ethical standards</p> Signup and view all the answers

Which of the following is a correct way to fill a pipet?

<p>Using a rubber bulb (B)</p> Signup and view all the answers

All living organisms used in laboratory activities should be treated with respect.

<p>True (A)</p> Signup and view all the answers

What should be checked before removing the contents of a chemical bottle?

<p>The label</p> Signup and view all the answers

What is the primary purpose of the Student Safety Contract?

<p>To ensure safety in the science classroom (A)</p> Signup and view all the answers

Students are allowed to catch falling sharp instruments.

<p>False (B)</p> Signup and view all the answers

What should students know the locations of in the laboratory?

<p>Safety equipment including the first aid kit, eye-wash station, safety shower, fire extinguisher, and fire blanket.</p> Signup and view all the answers

Always carry knives and other sharp instruments with tips and points pointing ______ and away.

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

Match the following safety items with their functions:

<p>First Aid Kit = Treat minor injuries Fire Extinguisher = Put out small fires Eye-wash Station = Flush chemicals from eyes Fume Hood = Ventilate hazardous vapors</p> Signup and view all the answers

What must students do if they have a medical condition before working in the lab?

<p>Consult their physician (B)</p> Signup and view all the answers

It is safe to place your head into the fume hood while working.

<p>False (B)</p> Signup and view all the answers

What should students do in the laboratory to ensure their safety?

<p>Be alert and proceed with caution at all times.</p> Signup and view all the answers

What is the correct procedure for diluting strong acids?

<p>Add acid to water (C)</p> Signup and view all the answers

It is safe to immerse hot glassware in cold water.

<p>False (B)</p> Signup and view all the answers

What should you do when handling flammable hazardous liquids?

<p>Handle over a pan to contain spills and keep away from open flames.</p> Signup and view all the answers

Always add acid to ______ to ensure safety.

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

What action is acceptable when using a gas burner?

<p>Keeping hair pulled back and safe distance from flame (A)</p> Signup and view all the answers

A violation of safety rules is acceptable if no one gets hurt.

<p>False (B)</p> Signup and view all the answers

What should you do if you're unsure about a laboratory procedure?

<p>Ask the instructor for help.</p> Signup and view all the answers

What should you use when handling heated glassware?

<p>Tongs or heat-protective gloves (D)</p> Signup and view all the answers

You should always look into a container that is being heated to observe the reaction.

<p>False (B)</p> Signup and view all the answers

What type of water should wash bottles be filled with?

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

Always protect your hands with towels or cotton ______ when inserting glass tubing into a rubber stopper.

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

Match the following actions with their safety precautions:

<p>Inserting glass tubing = Lubricate the tubing beforehand Bending glass = Allow time for the glass to cool Handling hot apparatus = Use an insulating pad Testing if an object is hot = Bring the back of your hand close</p> Signup and view all the answers

If a piece of glassware becomes ‘frozen’ in a stopper, what should you do?

<p>Take it to your instructor for removal (D)</p> Signup and view all the answers

Hot and cold glass have the same visual appearance.

<p>True (A)</p> Signup and view all the answers

Who must sign the contract before a student can perform laboratory activities?

<p>student and parent/guardian</p> Signup and view all the answers

What should you do before handling electrical equipment in a laboratory?

<p>Ensure hands are dry (B)</p> Signup and view all the answers

It is acceptable to use chipped glassware if it doesn't look dangerous.

<p>False (B)</p> Signup and view all the answers

What should be reported immediately in a laboratory setting?

<p>Damaged electrical equipment</p> Signup and view all the answers

You should always grasp the _____ when unplugging an electrical device.

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

Which of the following is NOT a safety protocol mentioned?

<p>Use dirty glassware (A)</p> Signup and view all the answers

It is safe to use water for rinsing glassware in a laboratory.

<p>True (A)</p> Signup and view all the answers

What should you do if you have specific allergies?

<p>List them on the safety contract</p> Signup and view all the answers

Flashcards

Safety in a Science Classroom

The first priority in a science classroom is to keep everyone safe.

Safety Rules

Specific guidelines for safe practices when handling chemicals or performing lab activities.

Caution in the Lab

In a science lab, working with chemicals, heat, or glassware needs to be done carefully.

Fume Hood

A designated place in the classroom for storing and using chemicals that release harmful fumes.

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Fire Extinguisher

A device used for putting out small fires.

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Fire Blanket

A special cloth that can be used to smother a fire.

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Eye Wash Station

A special area for washing hands and eyes after working in the lab.

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First Aid Kit

A place for storing things like bandages and antiseptics for small injuries.

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Clean Work Area

Always keep your work area clean and free of clutter. This helps prevent accidents and makes it easier to work safely.

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Lab Essentials Only

Only bring materials needed for the experiment to your work area. Keep personal belongings out of the lab, like bags or books.

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Clear Aisles

Always keep aisles clear for safe movement within the lab. This prevents tripping or bumping into others.

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No Touching Chemicals

Never touch, smell, or taste any chemicals unless instructed by your teacher. They can be dangerous.

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Proper Disposal

Dispose of all materials, especially biological samples, properly. Follow your teacher's instructions.

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Double-Check Labels

Always check the label of a chemical bottle twice before using it to avoid mistakes.

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No Re-Mixing Chemicals

Never return unused chemicals to their original container. This could contaminate the chemical for others.

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Wafting Technique

When working with chemicals, gently wave your hand over the container to smell the vapors. Never directly inhale fumes.

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Pouring Chemicals

When pouring chemicals from one container to another, keep your body away from the containers. This helps prevent spills and chemical contact.

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Diluting Acids

Always add acid to water, not the other way around. This minimizes splattering and dangerous heat generation.

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Handling Strong Acids

Strong acids require special care. Always follow your instructor's directions for handling them.

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Flammable Liquids

Flammable liquids must be handled carefully over a pan to contain any spills. Never pour them near open flames or heat sources.

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Cooling Hot Glassware

Never place hot glassware in cold water. This can cause it to shatter.

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Using a Gas Burner

Use extreme caution when working with a gas burner. Make sure hair, clothing, and hands are a safe distance from the flame at all times.

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Lab Safety Rules

It is important to understand and follow all the safety rules in the lab. These rules are designed to protect you and others.

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Instructor Approval

Always get permission from the instructor before handling any chemicals or using equipment. They can guide you on safe procedures.

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Glassware Safety

Always handle glassware with care, especially when it is hot or has sharp edges.

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Chipped or Cracked Glassware

Avoid using chipped or cracked glassware as it can break easily and cause injuries.

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Checking Electrical Equipment

Always inspect electrical equipment for damage and report any issues immediately.

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Dry Hands for Electrical Equipment

Before using any electrical equipment, ensure your hands are completely dry to prevent electric shock.

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Proper Plug Removal

When pulling out a plug, always grip the plug itself, not the cord. This prevents damage to the wires and potential electrical shocks.

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Using Distilled Water

Always use distilled water in the lab, except when specifically instructed otherwise, to prevent contamination of experiments.

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Chemical Safety Labels

Never use chemicals without first reading the label and understanding the safety precautions.

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Chemical Spill Procedures

In case of accidental chemical spills, refer to the specific instructions or inform the teacher immediately.

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Disposing of broken glass

Use a designated container and tongs or heat-protective gloves to safely dispose of broken glass.

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Inserting glassware into a stopper

Always lubricate glassware (tubing, thistle tubes, thermometers, etc.) before inserting it into a stopper. Protect your hands with towels or gloves.

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Looking into a heated container

Never look into a container that is being heated. Hot glassware and chemicals pose a significant hazard.

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Hot apparatus on the lab bench

Do not place hot apparatus directly on the lab bench. Always use an insulating pad and allow time for it to cool.

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Bending glass

When bending glass, allow sufficient time for it to cool before handling it. Hot glass looks like cold glass.

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Checking for hot objects

To determine if an object is hot, bring the back of your hand close to it before grasping it.

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Safety instruction program

A safety instruction program can eliminate, prevent, and correct potential hazards in the lab.

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Lab safety agreement

Read safety rules before engaging in lab activities. No student will be allowed to perform lab activities unless the safety contract is signed by both the student and parent.

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Lab Attire

Avoid loose clothing, jewelry, and open-toed shoes to prevent accidents in the lab.

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Working Alone

Never work alone in the lab; always have an instructor present for supervision.

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Following Instructions

Only use equipment and chemicals as directed by the instructor in the lab instructions.

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Reporting Accidents

Report any accidents, injuries, or spills immediately to your instructor.

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Lab Apron

Always wear a lab apron to protect your clothing from spills and chemicals.

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Food & Drink in the Lab

Do not eat, drink, or chew gum in the lab. Never use lab glassware for food or drinks.

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Study Notes

Student Safety Contract

  • Purpose: Science is a hands-on lab class requiring hazardous chemicals. Safety is paramount for students, teachers, and parents.
  • General Rules:
    • Conduct yourself responsibly in the lab.
    • Follow all instructions. Ask if unsure.
    • Never work alone.
    • Don't touch equipment, chemicals, or materials before instructed.
    • No food, drinks, or gum in the lab.
    • Perform only authorized experiments.
    • Be prepared and read procedures thoroughly.
    • No fooling around or horseplay.
    • Keep the lab clean and tidy.
    • Bring only necessary materials.
    • Keep aisles clear.
  • Safety Equipment: Know locations and operating procedures for safety equipment (first aid, eye wash, safety shower, fire extinguisher, fire blanket). Know fire alarm, exit locations.
  • Ventilation: Work in a well-ventilated area. Use fume hoods for volatile substances.
  • Caution: Be alert and proceed cautiously. Notify instructor of unsafe conditions.
  • Waste Disposal: Dispose of chemical waste properly. Sinks are for water and designated solutions; do not mix chemicals in sinks.
  • Labels and Equipment: Read labels and instructions before use. Set up and use equipment as directed.
  • Personal Protection: Keep hands away from face, eyes, mouth, and body during chemical or specimen use.
  • Hand Washing: Wash hands after every experiment.
  • Monitoring: Experiments must be monitored.
  • No unauthorized access: Students aren't allowed in storage rooms unless given permission.
  • Emergencies: Know emergency procedures for fire drills, be aware of steps to take in case of a fire drill, close containers, turn off gas, fume hoods and electric devices.
  • Living Organisms: Treat living organisms humanely in lab activities; handle preserved biological materials with respect.
  • Sharp Instruments: Always carry sharp instruments with tips/points pointing away from body. Cut away from the body, never catch a falling sharp instrument.
  • Disclaimers/Medical Conditions: If you have a medical condition (allergies, pregnancy), inform your physician.
  • Clothing:
    • Wear lab goggles when chemicals or glassware are used.
    • Contact lenses permitted with proper safety goggles for chemical exposure.
    • Appropriate clothing (long hair tied back, no dangling jewelry, no baggy clothing, closed-toe shoes).
  • Accidents and Injuries: Report all accidents, spills, breakage, injuries (cuts, burns) immediately, no matter how small.
  • Spills and Chemical Exposures: If a chemical splashes in eyes or on body: immediately flush with running water (eye wash or safety shower) for 20 minutes. Alert instructor.
  • Mercury Thermometers: If broken, do not touch mercury. Alert the instructor immediately.
  • Chemicals: Treat all lab chemicals as dangerous. Don't touch, taste, or smell unless instructed. Learn proper wafting technique for chemical vapors.
    • Check labels before removing any chemicals, and only take what you need.
  • Glassware:
    • Carry glass tubing vertically (to minimize breakage/injury).
    • Never handle broken glass with bare hands. Use a brush and dustpan to clean up broken glass. Dispose of broken glassware into the proper container.
    • Lubricate glassware before inserting it in a stopper.
    • Examine glassware before each use, never use chipped/cracked or dirty glassware.
  • Electrical Equipment: Report damaged electrical equipment immediately. Don't use damaged electrical equipment.
  • Heating Substances: Exercise caution when using gas burners. Never put substances into the flame unless instructed. Turn off burners/hot plates when not in use.
  • Hot Substances: Allow plenty of time for hot objects/apparatus to cool before touching them, use insulated pads. Do not immerse hot glassware in cold water (may shatter).
  • Acid Handling: Handle acids with extreme care. Add acid to water, and swirl. Be careful of heat, especially with sulfuric acid.
  • Flammable Substances: Handle flammables over a pan containing spills; keep away from open flames or heat sources, and never remove chemicals from the laboratory area.
  • Transportation: Carefully transport chemicals from one area to another.

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Student Safety Contract PDF

Description

This quiz covers the essential safety rules and guidelines for conducting experiments in a science lab. It emphasizes the importance of responsible behavior, knowledge of safety equipment, and proper lab conduct to ensure a safe learning environment. Familiarize yourself with these vital practices to protect yourself and others during hands-on activities.

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