Podcast
Questions and Answers
Why is it important to use a blue flame when heating substances with a Bunsen burner, and what does the color of the flame indicate about its efficiency?
Why is it important to use a blue flame when heating substances with a Bunsen burner, and what does the color of the flame indicate about its efficiency?
A blue flame indicates complete combustion of the gas, providing more even and efficient heating. An orange or yellow flame indicates incomplete combustion, which produces soot and less heat.
Before beginning a lab experiment, you should familiarize yourself with the procedure. Why is this important for your safety and the success of the experiment?
Before beginning a lab experiment, you should familiarize yourself with the procedure. Why is this important for your safety and the success of the experiment?
Knowing the procedure helps prevent accidents, ensures proper execution, and minimizes the risk of unexpected reactions or hazards. It also allows for better preparation and understanding of the experiment's purpose.
Explain the reasoning behind the rule against eating or drinking in the science lab. What potential hazards does this rule address?
Explain the reasoning behind the rule against eating or drinking in the science lab. What potential hazards does this rule address?
Eating or drinking in the lab can lead to ingestion of chemicals, contamination of food/drink with hazardous substances, and potential exposure to pathogens. It minimizes the risk of accidental poisoning or illness.
Imagine you accidentally spill a chemical on your skin during an experiment. Describe the immediate steps you should take, according to lab safety protocol.
Imagine you accidentally spill a chemical on your skin during an experiment. Describe the immediate steps you should take, according to lab safety protocol.
Why should you never pull a plug out of an outlet by its cord? What could happen?
Why should you never pull a plug out of an outlet by its cord? What could happen?
When transferring a chemical from its original container to a secondary container within a lab, what key pieces of information must be included on the workplace label?
When transferring a chemical from its original container to a secondary container within a lab, what key pieces of information must be included on the workplace label?
Explain the relationship between the Hazardous Products Act (HPA) and the Workplace Hazardous Materials Information System (WHMIS).
Explain the relationship between the Hazardous Products Act (HPA) and the Workplace Hazardous Materials Information System (WHMIS).
Describe a scenario where a supplier would be required to update a Safety Data Sheet (SDS).
Describe a scenario where a supplier would be required to update a Safety Data Sheet (SDS).
Explain the significance of pictograms on a chemical label, according to WHMIS 2015. Give an example.
Explain the significance of pictograms on a chemical label, according to WHMIS 2015. Give an example.
What is the difference between MSDS and SDS?
What is the difference between MSDS and SDS?
What immediate actions should be taken if glassware breaks during a lab experiment?
What immediate actions should be taken if glassware breaks during a lab experiment?
Explain in your own words the meaning of 'Be Science Ready' in the context of lab safety.
Explain in your own words the meaning of 'Be Science Ready' in the context of lab safety.
List three essential pieces of personal protective equipment (PPE) that are often required in a science lab.
List three essential pieces of personal protective equipment (PPE) that are often required in a science lab.
Describe the safety information that can be found on a 2015 WHMIS label.
Describe the safety information that can be found on a 2015 WHMIS label.
Explain the significance of the acronym BFA regarding lab safety.
Explain the significance of the acronym BFA regarding lab safety.
How does WHMIS 2015 improve upon WHMIS 1988 in terms of hazard information?
How does WHMIS 2015 improve upon WHMIS 1988 in terms of hazard information?
Using the levels of hazard rating system (Blue, Red, Yellow, White), explain what each colour represents and provide a brief explanation of what a high number (e.g., 4) would indicate for the 'Red' hazard.
Using the levels of hazard rating system (Blue, Red, Yellow, White), explain what each colour represents and provide a brief explanation of what a high number (e.g., 4) would indicate for the 'Red' hazard.
Explain the purpose of knowing the Material Safety Data Sheet (SDS) for chemicals used in experiments.
Explain the purpose of knowing the Material Safety Data Sheet (SDS) for chemicals used in experiments.
Flashcards
Lab PPE
Lab PPE
Use personal protective equipment (PPE) to minimize risks in the lab.
No Food in Lab
No Food in Lab
To avoid contamination or accidents, food is not allowed in the science lab.
Safety Equipment Locations
Safety Equipment Locations
Know where to find the fire extinguisher, first aid kit, and emergency exits.
Follow Teacher's Instructions
Follow Teacher's Instructions
Signup and view all the flashcards
Wafting Odors
Wafting Odors
Signup and view all the flashcards
Product Identifier
Product Identifier
Signup and view all the flashcards
Precautionary Statement
Precautionary Statement
Signup and view all the flashcards
Supplier Identifier
Supplier Identifier
Signup and view all the flashcards
Signal Word
Signal Word
Signup and view all the flashcards
Pictogram (WHMIS)
Pictogram (WHMIS)
Signup and view all the flashcards
Broken Glass Protocol
Broken Glass Protocol
Signup and view all the flashcards
Be Science Ready
Be Science Ready
Signup and view all the flashcards
GHS
GHS
Signup and view all the flashcards
WHMIS
WHMIS
Signup and view all the flashcards
Hazard Levels (Color Codes)
Hazard Levels (Color Codes)
Signup and view all the flashcards
Personal Protective Equipment (PPE)
Personal Protective Equipment (PPE)
Signup and view all the flashcards
pH Scale
pH Scale
Signup and view all the flashcards
WHMIS 2015 Label Elements (P.P.S.S.P.H.S.)
WHMIS 2015 Label Elements (P.P.S.S.P.H.S.)
Signup and view all the flashcards
Study Notes
- Always prioritize safety in the science lab.
Rules and Behaviors
- Wear appropriate Personal Protective Equipment (PPE).
- No food or drink is allowed.
- Know the location of safety equipment and fire exits.
- Always follow the teacher's instructions.
- Tie long hair back and wear closed-toe shoes.
- Waft odors from a distance (forearm's length).
- Dispose of excess materials in designated waste receptacles.
- Clean the lab bench after use.
- No horseplay is permitted.
- Know the lab procedure before starting.
- Avoid reaching over open flames.
- Do not mix flammable materials.
- Never discard burning items in the trash.
- When heating substances in a tube, avoid looking directly into it or pointing it at anyone.
- When using a Bunsen burner, ensure the flame is blue and well-defined for even heating.
- Never touch or smell unknown substances.
Electricity
- Do not use equipment with frayed cords or broken wires.
- Avoid touching electrical equipment with wet hands or using it near water.
- Turn off the power switch before plugging in electrical equipment.
- Never pull plugs out by the wire.
- Know how to operate electrical equipment before use.
Equipment
- Report broken glass to the teacher and allow them to handle it.
- Do not wear contact lenses.
- Always wear eye protection.
General Safety
- Act responsibly in the lab.
- Be familiar with the Material Safety Data Sheet (MSDS).
- The three stages of being in a safe lab are BFA:
- Be Science Ready
- Follow Instructions
- Act Responsibly
Labeling Hazardous Materials
- Labels provide hazard information using a standardized system.
- GHS is the Globally Harmonized System of Classification and Labeling of Chemicals.
- WHMIS is the Workplace Hazardous Materials Information System.
- Hazard levels are indicated by colors.
- Blue indicates Health hazards.
- Red indicates Fire hazards.
- Yellow indicates Reactivity hazards.
- White indicates Other hazards.
- Hazard ratings from 1988 appear directly on the label.
- Hazard ratings from 2015 appear on the Safety Data Sheet and use hazard categories.
- 1988 hazard levels range from 4 to 1, with 4 being the most hazardous.
- 2015 hazard levels range from 1 to 3, with 1 being the most hazardous.
Personal Protective Equipment (PPE)
- Goggles
- Gloves
- Lab Coat
- Face Shield
- Fume Hood
HHPS
- HHPS stands for Hazardous Household Product Symbols.
- Different companies may use different symbols.
pH Scale
- pH Scale ranges from 1-14.
- Substances with a pH less than 7 are acidic.
- Substances with a pH greater than 7 are basic.
- Corrosive examples: Sodium hydroxide (NaOH), Potassium hydroxide (KOH)
- Flammable examples: Alcohol, Ethanol, Methanol, Propane, Butane
- Poisonous example: Petroleum distillates.
WHMIS
- WHMIS ensures workers' rights to know about material safety, participate in training, and refuse unsafe work.
- WHMIS 1988 was modified to include the Globally Harmonized System because of changes to HPA.
- WHMIS aims to provide consistent hazard information, improve emergency response, facilitate trading, ensure safer handling, and reduce supplier cost.
WHMIS Designations
- WHMIS 1988 were called "controlled products".
- WHMIS 2015 are called "hazardous products".
Hazard Groups
- WHMIS 2015 categorizes symbols into hazard groups.
- Physical hazard classes: flammable liquids, gases under pressure, oxidizing solids.
- Health classes: acute toxicity, skin corrosion/irritation, carcinogenicity.
Labels
- 2015 WHMIS label includes: P.P.S.S.P.H.S. which mean "Please prevent spills safe practice helps save"
- P-Product Identifier
- P-Precautionary Statement
- S-Supplier Identifier
- S-Signal Word
- P-Pictogram
- H-Hazard Statement
- S-Supplemental Information on a 2015 label.
- Labels on chemicals less than 10 KG must include:
- product identifier
- a supplier identifier
- WHMIS 2015 pictograms
- alert words
- precautionary statements
- hazard statements
Laboratory and Workplace Labels
- Laboratory Label: Chemicals removed from the original container must have the transfer identify its contents.
- Workplace Label: If material is transferred in a laboratory, the transfer container must have a workplace label (includes a chemical identifier, instructions and a reference to the SDS).
- SDS is prepared by the product manufacturer or supplier.
- SDS provides more detailed information than the product label.
- SDS does not expire, and must be updated with new information.
Acronyms
- HPA: Hazardous Products Act
- GHS: Global Harmonized System
- WHMIS: Workplace Hazardous Materials Information System
- BFA: Be Science Ready, Follow Instructions, Act Responsibly
- SDS: Safety Data Sheet
- MSDS: Material Safety Data Sheet (predecessor to SDS)
- PPE: Personal Protective Equipment
- HHPS: Hazardous Household Product Symbols
- P.P.S.S.P.H.S: Please prevent spills safe practice helps save
- P-Product Identifier
- P-Precautionary Statement
- S-Supplier Identifier
- S-Signal Word
- P-Pictogram
- H-Hazard Statement
- S-Supplemental Information
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
