First Aid and Emergency Response in the Biology Laboratory for SS 1

Class: SS 1
Term: First Term
Week: 4
Age: 15 years
Duration: 60 minutes
Subject: Biology
Curriculum Theme: Biology and Scientific Enquiry
Focal competence: Administering first aid and responding to emergencies in the laboratory
Key competencies/values: Communication; Collaboration; Information Literacy
Skills:

• Handling minor accidents in the laboratory
• Identifying potential causes of accidents and hazards in the laboratory

Previous Lesson: Laboratory Safety Procedures, Equipment and Emergency Causes
Topic: Safety Procedures In The Laboratory: First Aid In The Biology Laboratory
Subject Matter: First-Aid in the Biology Laboratory, Emergency Response in the laboratory

Specific Objectives

By the end of the lesson, pupils/students should be able to:

Cognitive Domain

• Identify the contents of a first aid box and their uses.
• State procedures for handling minor accidents like burns, cuts, and bites.
• Describe steps for responding to laboratory emergencies such as spills and fire.

Affective Domain

• Appreciate the importance of prompt first aid and emergency response.
• Develop a sense of responsibility for laboratory safety.

Psychomotor Domain

• Demonstrate appropriate use of the contents of a first aid box.
• Demonstrate responses to laboratory emergencies like fire incidents and chemical spills.

Social Domain

• Collaborate effectively during role-play scenarios of emergency responses.

Reference Materials

The following resources were used in planning this lesson:

• 2025 New Revised Senior Secondary Education Curriculum (SSEC)
• Relevant State Unified Scheme of Work
• The HeadTeacher Scheme of work For The New Revised Senior Secondary Education Curriculum (SSEC)
• Biology for Senior Secondary Schools Textbook

Instructional Materials

The teacher will teach this lesson with the aid of:

• Charts of different safety equipment
• A complete first aid box with all its contents
• Sand buckets
• Fire extinguishers
• Protective glasses
• Fume cupboard
• Mock scenarios for role-play

Rationale for the Lesson

This lesson is essential for equipping students with practical skills to ensure their safety and the safety of others in the biology laboratory. Understanding first aid and emergency response procedures helps minimise injuries and damage during accidents. It fosters a proactive approach to safety, preparing students to handle unforeseen circumstances responsibly.

Prerequisite/Previous Knowledge

Pupils/students should have basic knowledge of general laboratory safety rules and the importance of a safe working environment.

Lesson Content/Board Summary

Safety Procedures In The Laboratory: First Aid In The Biology Laboratory

First Aid in the Biology Laboratory

First aid refers to the immediate care given to an injured or suddenly ill person before professional medical help arrives. In a biology laboratory, minor accidents can occur, making knowledge of first aid crucial.

Contents of the First Aid Box and Their Uses

A well-stocked first aid box is vital in any laboratory. Its typical contents and their uses include:

1. Antiseptic wipes/solution (e.g., Dettol, Savlon): Used to clean wounds and prevent infection.
2. Cotton wool: Used for applying antiseptics or cleaning wounds.
3. Sterile gauze pads/bandages: Used to cover wounds, absorb blood, and protect against infection.
4. Adhesive plasters (Band-Aids): Used for covering small cuts and abrasions.
5. Scissors: For cutting bandages or clothing.
6. Tweezers: For removing splinters or small foreign objects from wounds.
7. Pain relievers (e.g., Paracetamol): For alleviating minor pain.
8. Antihistamine cream/tablets: For allergic reactions or insect bites.
9. Burn cream/gel: For treating minor burns.
10. Gloves: To protect the first aider from contamination.
11. Safety pins: For securing bandages.
12. Triangular bandage: Can be used as a sling or to secure dressings.
13. Thermometer: To check body temperature.
14. First aid manual: Provides guidance on how to handle various injuries.

Handling Minor Accidents in the Laboratory

Prompt and correct handling of minor accidents can prevent them from worsening.

1. Cuts and Abrasions:
   1. Wash the wound gently with soap and water.
   2. Apply an antiseptic solution or wipe.
   3. Cover with a sterile gauze pad or plaster.
   4. If bleeding is severe, apply direct pressure and seek medical attention.
2. Minor Burns (e.g., from hot apparatus):
   1. Cool the burn immediately under cool running water for at least 10-20 minutes.
   2. Do not apply ice directly.
   3. Do not break any blisters.
   4. Cover with a clean, non-stick dressing or burn gel.
   5. Seek medical attention if the burn is large, deep, or on a sensitive area.
3. Insect Bites (e.g., mosquito, ant):
   1. Wash the area with soap and water.
   2. Apply an antihistamine cream or calamine lotion to reduce itching and swelling.
   3. If there’s a severe allergic reaction (e.g., difficulty breathing, widespread rash), seek immediate medical help.
4. Chemical Splashes on Skin/Eyes:
   1. Immediately flush the affected area with plenty of water for at least 15-20 minutes.
   2. For eye splashes, use an eyewash station or gently hold the eyelid open under running water.
   3. Remove any contaminated clothing.
   4. Seek immediate medical attention.

Emergency Response in the Laboratory

Major emergencies require a structured response to ensure safety and minimise harm.

Identifying Emergencies

An emergency in the laboratory is any situation that poses an immediate threat to life, health, or property. This includes:

1. Fire incidents (e.g., from flammable chemicals, electrical faults).
2. Chemical spills (e.g., corrosive acids, toxic substances).
3. Explosions.
4. Serious injuries (e.g., severe bleeding, unconsciousness).
5. Gas leaks.

Procedures for Spills

Chemical spills must be handled carefully to prevent exposure and contamination.

1. Small, non-hazardous spills:
   1. Wear appropriate personal protective equipment (PPE) like gloves and safety goggles.
   2. Cover the spill with absorbent material (e.g., paper towels, sand).
   3. Collect the absorbed material and dispose of it in a designated waste container.
   4. Clean the area with soap and water.
2. Large or hazardous spills:
   1. Alert the teacher or laboratory supervisor immediately.
   2. Evacuate the immediate area if necessary.
   3. If safe to do so, contain the spill using spill kits or sand.
   4. Do not attempt to clean up highly corrosive, toxic, or flammable spills without proper training and equipment.

Procedures for Fire

Fire is a serious laboratory emergency requiring quick and decisive action.

1. Raise the alarm: Shout “Fire!” to alert others.
2. Activate fire alarm: If available, pull the nearest fire alarm.
3. Evacuate immediately: If the fire is large or spreading, do not attempt to fight it. Follow evacuation routes.
4. Use a fire extinguisher (if safe and trained): For small fires, use the correct type of extinguisher (e.g., CO2 for electrical fires, sand for chemical fires). Remember the PASS method: Pull, Aim, Squeeze, Sweep.
5. Close doors and windows: To contain the fire and smoke.
6. Call emergency services: Once safely evacuated.

Evacuating People from the Site

Safe and orderly evacuation is critical during major emergencies.

1. Stay calm: Panic can lead to further accidents.
2. Follow designated evacuation routes: These should be clearly marked.
3. Do not use elevators: Always use stairs during a fire or other emergencies.
4. Assist others: Help those who may need assistance, but do not put yourself at undue risk.
5. Assemble at the designated muster point: This allows for a headcount to ensure everyone is safe.
6. Do not re-enter the building: Until declared safe by emergency personnel.

Teaching Methods/Instructional Techniques

Discussion, Demonstration, Guided Practice, Question and Answer, Explanation, Role-play, Practical Activity.

Instructional Procedures

Step 1: Introduction

Time: 5 minutes

Teaching Skill: Questioning/Engagement

Teacher’s Activity: The teacher greets the students and asks them to recall some general safety rules in the biology laboratory. The teacher then introduces the topic: “Safety Procedures In The Laboratory: First Aid In The Biology Laboratory.”

Pupils’ Activity: Pupils respond to the questions and listen attentively to the introduction.

Learning Point: Importance of lab safety

Step 2: First Aid Box Contents and Uses

Time: 10 minutes

Teaching Skill: Demonstration/Explanation

Teacher’s Activity: The teacher displays a first aid box and its contents. The teacher identifies each item, explains its purpose, and demonstrates how to use common items like antiseptic wipes, plasters, and bandages.

Pupils’ Activity: Pupils observe the demonstration, identify the items, and ask questions for clarification.

Learning Point: First aid box contents

Step 3: Handling Minor Accidents (Cuts and Burns)

Time: 10 minutes

Teaching Skill: Guided Practice/Demonstration

Teacher’s Activity: The teacher explains and demonstrates the first aid procedures for minor cuts and burns using mock scenarios or diagrams. The teacher guides students to practice applying a plaster or bandage on a classmate’s arm (simulated injury).

Pupils’ Activity: Pupils pay attention to the explanations and demonstrations, then practice the first aid techniques under guidance.

Learning Point: Managing minor injuries

Step 4: Handling Minor Accidents (Bites and Chemical Splashes)

Time: 5 minutes

Teaching Skill: Explanation/Discussion

Teacher’s Activity: The teacher explains the first aid procedures for insect bites and chemical splashes on the skin or eyes, emphasising immediate flushing with water for chemical incidents.

Pupils’ Activity: Pupils listen and discuss the importance of quick action for chemical splashes.

Learning Point: Responding to chemical splashes

Step 5: Identifying Emergencies and Spill Procedures

Time: 5 minutes

Teaching Skill: Explanation/Questioning

Teacher’s Activity: The teacher discusses various types of laboratory emergencies (fire, spills, explosions) and explains the difference between minor and hazardous chemical spills. The teacher outlines the procedures for handling both types of spills.

Pupils’ Activity: Pupils identify different emergencies and listen to the spill response procedures.

Learning Point: Identifying lab emergencies

Step 6: Emergency Response (Fire and Evacuation)

Time: 10 minutes

Teaching Skill: Role-play/Demonstration

Teacher’s Activity: The teacher demonstrates the use of a fire extinguisher (if available and safe) and explains the PASS method. The teacher then guides students to role-play appropriate responses to a fire incident and an evacuation scenario, including moving to a muster point.

Pupils’ Activity: Pupils observe the fire extinguisher demonstration and actively participate in role-playing emergency responses and evacuation procedures.

Learning Point: Fire and evacuation procedures

Step 7: Evaluation/Review

Time: 5 minutes

Teaching Skill: Questioning/Assessment

Teacher’s Activity: The teacher evaluates the learning by asking the following questions:

1. Mention three items found in a first aid box and their uses.
2. How would you handle a minor cut in the laboratory?
3. What is the first step when a chemical splashes into your eye?
4. Describe two steps to take during a laboratory fire incident.

Pupils’ Activity: Pupils answer orally and in writing.

Learning Point: Assessing safety knowledge

Step 8: Note-Taking

Time: 10 minutes

Teaching Skill: Guided Writing

Teacher’s Activity: The teacher guides pupils/students to copy the essential Board Summary notes on first aid box contents, handling minor accidents, and emergency response procedures into their notebooks.

Pupils’ Activity: Pupils/students copy the notes carefully into their notebooks.

Learning Point: Recording lesson notes

Step 9: Conclusion

Time: 5 minutes

Teaching Skill: Summarisation

Teacher’s Activity: The teacher briefly summarises the importance of knowing first aid and emergency response procedures in the biology laboratory for personal and collective safety. The teacher encourages students to always be vigilant and report any hazards.

Pupils’ Activity: Pupils listen and reflect on the lesson’s key takeaways.

Learning Point: Consolidating safety awareness

Continuous Assessment/Further Study

Type: Homework/Practice Exercise

Instruction: Answer the following questions and be prepared to demonstrate some procedures in the next class.

1. List five items you would expect to find in a well-equipped laboratory first aid box and state the use of each item.
2. Imagine a scenario where a classmate accidentally spills a non-corrosive chemical on their hand. Outline the steps you would take to provide first aid.
3. Explain the importance of having a designated muster point during a laboratory evacuation.
4. Research and identify the location of the fire extinguisher, sand bucket, and first aid box in your school’s biology laboratory.

Lesson Keywords

• First Aid – Immediate care given to an injured or ill person.
• Emergency Response – Actions taken to manage and mitigate a dangerous situation.
• Antiseptic – A substance that stops or slows down the growth of microorganisms.
• Gauze – A thin, transparent fabric used for dressing wounds.
• Evacuation – The action of vacating a place in an emergency.
• Muster Point – A designated safe location where people gather during an emergency evacuation.
• Spill Kit – A collection of materials used to clean up chemical spills.
• Fire Extinguisher – A device used to put out small fires.

Differentiation

For learners needing support: Provide simplified charts of first aid box contents with clear pictures and uses. Pair them with more capable students during practical demonstrations and role-playing. Offer a checklist for emergency procedures to guide their responses.

For advanced learners: Challenge them to research specific types of chemical hazards common in biology labs and their advanced first aid protocols. Ask them to design a detailed emergency response plan for a hypothetical complex laboratory accident, including communication protocols.

Suggested Lesson Videos

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