C7.2.2 Conducting Experiments Safely

• Chemical hazards can cause harm through ingestion, inhalation, or contact
• What is the purpose of a risk assessment before conducting an experiment?

  Identify hazards and safety measures
• What is an example of a chemical hazard in a laboratory?

  Acids
• Biological hazards include bacteria and viruses.

  True
• What is an example of a physical hazard in a laboratory?

  Sharp equipment
• Personal Protective Equipment (PPE) is designed to protect against chemical spills, physical injuries, and exposure to hazardous substances
• A lab coat should be removed before leaving the laboratory.


  True
• Where should hazardous substances be stored in a laboratory?

  Labeled containers in well-ventilated areas
• What type of substances should be neutralized before disposal?

  Acids and bases
• Substances should be labeled with their names and hazards to ensure safe handling.


  True
• Why should chemicals be handled in a well-ventilated area using fume hoods?

  To avoid toxic fumes
• PPE protects against chemical spills, physical injuries, and exposure to hazardous substances.

  True
• Gloves protect hands from chemical contact
• When should a fume hood be used?

  With hazardous chemicals
• Hazardous substances should be stored in labeled containers in well-ventilated areas.


  True
• Water-soluble, non-toxic substances can be flushed down the drain
• Which disposal method is used for acids and bases?

  Neutralization
• Following laboratory procedures minimizes exposure to hazardous materials
• What is the first step to take during a lab accident?

  Alert lab staff
• Steps to respond to a lab accident:

  1️⃣ Alert lab staff

  2️⃣ Apply first aid

  3️⃣ Contain and clean spills

  4️⃣ Report the incident
• Physical hazards can cause physical injury
• Order the steps involved in a risk assessment

  1️⃣ Identify hazards

  2️⃣ Determine safety measures

  3️⃣ Implement safety protocols

  4️⃣ Minimize risks
• Flammable solvents are examples of chemical hazards.

  True
• What is the purpose of safety glasses in a laboratory?

  Protect eyes from chemical splashes
• Fume hoods are used to ventilate toxic fumes
• Why should gloves be changed if they are torn or contaminated?

  To prevent chemical exposure
• Order the principles of managing hazardous substances

  1️⃣ Identify hazards

  2️⃣ Store substances properly

  3️⃣ Handle with PPE

  4️⃣ Dispose using correct methods
• Water-soluble, non-toxic substances can be flushed down the drain.


  True
• Wearing PPE prevents chemical splashes, physical injuries, and contamination
• Personal Protective Equipment (PPE) is vital for ensuring safety in the lab during experiments
• What do safety glasses protect against?

  Chemical splashes and debris
• A lab coat should be removed before leaving the lab.


  True
• Understanding substance risks requires using risk assessments.
• What type of PPE should be worn to avoid skin contact with hazardous substances?

  Gloves
• Toxic chemicals should be disposed of in designated waste containers.


  True
• Match the disposal method with the substance:

  Incineration ↔️ Flammable solvents

  Designated waste container ↔️ Heavy metals

  Neutralization ↔️ Acids and bases
• Chemicals should be handled in well-ventilated areas using fume hoods.

  True
• Chemical spills should be contained using appropriate cleanup kits