Scientific Investigation

Introduction to Integrated Science - Meaning and components of Integrated Science

By the end of the lesson, the learner should be able to:

- Define the term Integrated Science using an English dictionary
- Identify the components of Integrated Science: biology, physics, and chemistry
- Show interest in learning about Integrated Science as a combined field of study

In groups, learners are guided to:
- In groups, find the meanings of "integrated" and "science" from a dictionary; discuss and merge into one statement
- Identify the components of Integrated Science from Figure 1.1 and by searching the internet
- Find out what each component — biology, physics, and chemistry — involves

What is Integrated Science and what are its components?

 - English dictionary, digital device  computer with internet access
- 

- Oral questions - Observation

Scientific Investigation

Introduction to Integrated Science - Meaning and components of Integrated Science

By the end of the lesson, the learner should be able to:

- Distinguish between the components of Integrated Science with examples from daily life
- Explain phenomena that draw on more than one science branch
- Appreciate that Integrated Science combines disciplines to explain natural phenomena

In groups, learners are guided to:
- Discuss examples from biology (living organisms), chemistry (substances and reactions), and physics (forces and energy) in daily life
- Discuss phenomena that require more than one component: cooking water involves both physics (heat) and chemistry (water behaviour)
- Present findings to the class

How do the components of Integrated Science work together to explain everyday phenomena?

 - Charts showing branches of science
- Reference books

- Oral questions - Written assignments

Scientific Investigation

Introduction to Integrated Science - Integrated Science and career opportunities

By the end of the lesson, the learner should be able to:

- Identify at least six careers related to Integrated Science
- Explain how each career uses knowledge from the components of Integrated Science
- Show interest in science-related career pathways

In groups, learners are guided to:
- Study pictures showing people applying Integrated Science knowledge in their careers
- Use the internet to search for career opportunities linked to Integrated Science
- Discuss careers: medicine, nursing, engineering, agriculture, pharmacy, and environmental science

How does studying Integrated Science open career opportunities?

 - Internet access, digital device computer 
- Career charts

- Oral questions - Written assignments

Scientific Investigation

Introduction to Integrated Science - Integrated Science and career opportunities

By the end of the lesson, the learner should be able to:

- Match specific career pathways to the science components they use most
- Explain how science skills such as prediction, observation, and communication are used in careers
- Value the role of science education in career development

In groups, learners are guided to:
- Discuss how a doctor uses biology and chemistry; an engineer uses physics; a farmer uses biology and chemistry
- Discuss how science skills — predicting, observing, communicating — are applied in everyday careers
- Invite a resource person to talk about their science-related career

What specific skills and knowledge from Integrated Science are used in various careers?

-  - Resource person
- Internet access computer 

- Oral questions - Observation

Scientific Investigation

Introduction to Integrated Science - Importance of Integrated Science in daily life

By the end of the lesson, the learner should be able to:

- State at least five ways Integrated Science is important in daily life
- Give examples of science applied in cooking, health, farming, and technology
- Appreciate science as a useful tool for solving everyday problems

In groups, learners are guided to:
- Fill in Table on "Importance of Integrated Science in daily life" in groups
- Discuss how science is used in: cooking, health, farming, technology, and solving environmental problems
- Present group findings to the class

How is Integrated Science important in our everyday lives?

 - Table on importance 
- Reference books

- Oral questions - Written assignments

Scientific Investigation

Introduction to Integrated Science - Importance of Integrated Science in daily life

By the end of the lesson, the learner should be able to:

- Summarise the meaning, components, careers, and importance of Integrated Science
- Attempt Self-assessment 1 questions correctly
- Reflect on learning about Integrated Science as a foundation for careers and daily life

In groups, learners are guided to:
- Review all topics in the sub-strand: definition, components, careers, and importance
- Complete Self-assessment 1 questions from the course book
- Discuss answers as a class; correct any misconceptions

How well do you understand the foundations of Integrated Science?

 - Exercise books

- Written test - Oral questions

Scientific Investigation

Laboratory Safety - Common laboratory hazards and their symbols

By the end of the lesson, the learner should be able to:

- Identify common hazards found in the laboratory
- Interpret at least five laboratory hazard symbols correctly
- Show awareness of the dangers associated with laboratory work

In groups, learners are guided to:
- Identify hazard symbols from charts and chemical containers in the laboratory
- Discuss what each symbol means and the hazard it represents: flammable, toxic, corrosive, oxidising, and irritant
- Match hazard symbols to the appropriate laboratory materials

What are the common laboratory hazards and what do their symbols mean?

- Charts with hazard symbols
- Science Kit

- Observation - Oral questions

Scientific Investigation

Laboratory Safety - Common laboratory hazards and their symbols

By the end of the lesson, the learner should be able to:

- Describe the hazard associated with each common laboratory symbol
- Explain why hazard symbols must be clearly displayed on all laboratory substances
- Create a hazard symbols poster for display in the laboratory

In groups, learners are guided to:
- Study hazard symbols on substance containers in the laboratory
- Discuss the danger level for each symbol and what should be done if exposed
- In groups, create a poster showing hazard symbols, their meanings, and precautions

How do hazard symbols protect laboratory users?

 - Hazard symbol charts, SEPU Kit
- Manila paper and markers

- Observation schedule - Checklist

Scientific Investigation

Laboratory Safety - Causes of common accidents in the laboratory

By the end of the lesson, the learner should be able to:

- State the common causes of accidents in the laboratory
- Copy and complete a table of accidents and their causes
- Show responsibility when handling laboratory equipment

In groups, learners are guided to:
- Discuss common causes: misuse of chemicals, careless handling of glass, open flames near flammable substances, and inserting metallic objects in electrical sockets
- Copy and complete the accidents table (Burn, Slip or fall, Cut, Poisoning) with causes
- Share and discuss completed tables

What causes most accidents in the laboratory and how can they be prevented?

- Accidents table 
- Reference books

- Oral questions - Written assignments

Scientific Investigation

Laboratory Safety - Causes of common accidents in the laboratory

By the end of the lesson, the learner should be able to:

- Identify specific accident risks linked to different laboratory activities
- Write at least six precautions to observe in the laboratory for personal and others' safety
- Develop a responsible attitude towards laboratory work

In groups, learners are guided to:
- Role-play safe and unsafe laboratory behaviour
- Write six precautions to observe in the laboratory at all times
- Discuss: why should solid waste not be disposed of in water sinks? Why should laboratory windows be open?

How do you prevent accidents in the laboratory?

- Safety scenario cards
- Reference books

- Observation schedule - Written assignments

Scientific Investigation

Laboratory Safety - First aid safety measures for common laboratory accidents

By the end of the lesson, the learner should be able to:

- Identify the contents of a first aid kit and state the function of each item
- Identify first aid measures for burns, cuts, chemical spills, and electric shock
- Show concern for the safety and wellbeing of fellow learners

In groups, learners are guided to:
- Carry out Activity 4: identify the contents of a first aid kit and discuss the function of each item
- Discuss first aid for: burns (cool with running water), cuts (apply pressure), chemical spills (flush with plenty of water)
- Interact with a resource person on laboratory first aid procedures

What first aid should be given after common laboratory accidents?

- First Aid Kit
- Resource person

- Practical work - Observation

Scientific Investigation

Laboratory Safety - First aid safety measures for common laboratory accidents

By the end of the lesson, the learner should be able to:

- Identify the contents of a first aid kit and state the function of each item
- Identify first aid measures for burns, cuts, chemical spills, and electric shock
- Show concern for the safety and wellbeing of fellow learners

In groups, learners are guided to:
- Carry out Activity 4: identify the contents of a first aid kit and discuss the function of each item
- Discuss first aid for: burns (cool with running water), cuts (apply pressure), chemical spills (flush with plenty of water)
- Interact with a resource person on laboratory first aid procedures

What first aid should be given after common laboratory accidents?

- First Aid Kit
- Resource person

- Practical work - Observation

Scientific Investigation

Laboratory Safety - First aid safety measures for common laboratory accidents

By the end of the lesson, the learner should be able to:

- Identify the contents of a first aid kit and state the function of each item
- Identify first aid measures for burns, cuts, chemical spills, and electric shock
- Show concern for the safety and wellbeing of fellow learners

In groups, learners are guided to:
- Carry out Activity 4: identify the contents of a first aid kit and discuss the function of each item
- Discuss first aid for: burns (cool with running water), cuts (apply pressure), chemical spills (flush with plenty of water)
- Interact with a resource person on laboratory first aid procedures

What first aid should be given after common laboratory accidents?

- First Aid Kit
- Resource person

- Practical work - Observation

Scientific Investigation

Laboratory Safety - First aid safety measures for common laboratory accidents

By the end of the lesson, the learner should be able to:

- Identify the contents of a first aid kit and state the function of each item
- Identify first aid measures for burns, cuts, chemical spills, and electric shock
- Show concern for the safety and wellbeing of fellow learners

In groups, learners are guided to:
- Carry out Activity 4: identify the contents of a first aid kit and discuss the function of each item
- Discuss first aid for: burns (cool with running water), cuts (apply pressure), chemical spills (flush with plenty of water)
- Interact with a resource person on laboratory first aid procedures

What first aid should be given after common laboratory accidents?

- First Aid Kit
- Resource person

- Practical work - Observation

Scientific Investigation

Laboratory Safety - First aid safety measures for common laboratory accidents

By the end of the lesson, the learner should be able to:

- Describe the first aid for a burn, distinguishing between thermal and chemical burns
- Demonstrate correct first aid procedures in pairs using a First Aid Kit
- Value the importance of prompt first aid in reducing the severity of injuries

- Demonstrate first aid for a learner who accidentally burnt her hand: cool under running water for at least 10 minutes
- Practise basic first aid responses for cuts and burns in pairs
- Prepare and display a first aid procedure chart in the laboratory

How does prompt and correct first aid reduce the impact of laboratory injuries?

- First Aid Kit, charts
- Exercise books

- Practical work - Checklist

Scientific Investigation

Laboratory Safety - Importance of practising safety measures in the laboratory

By the end of the lesson, the learner should be able to:

- Explain why safety measures must always be practised in the laboratory
- Read and discuss safety measures from a provided chart
- Develop a habit of following safety rules during every practical activity

In groups, learners are guided to:
- Read the safety measures on the chart provided or on page 17 of the course book
- Discuss: why is it important to observe safety measures while in the laboratory?
- Write the safety measures in exercise books for reference

Why is it important to always practise safety measures in the laboratory?

- Safety measures chart
- Internet access

- Oral questions - Written assignments

Scientific Investigation

Laboratory Safety - Importance of practising safety measures in the laboratory

By the end of the lesson, the learner should be able to:

- Explain why safety measures must always be practised in the laboratory
- Read and discuss safety measures from a provided chart
- Develop a habit of following safety rules during every practical activity

In groups, learners are guided to:
- Read the safety measures on the chart provided or on page 17 of the course book
- Discuss: why is it important to observe safety measures while in the laboratory?
- Write the safety measures in exercise books for reference

Why is it important to always practise safety measures in the laboratory?

- Safety measures chart
- Internet access

- Oral questions - Written assignments

Scientific Investigation

Laboratory Safety - Importance of practising safety measures in the laboratory

By the end of the lesson, the learner should be able to:

- Explain why safety measures must always be practised in the laboratory
- Read and discuss safety measures from a provided chart
- Develop a habit of following safety rules during every practical activity

In groups, learners are guided to:
- Read the safety measures on the chart provided or on page 17 of the course book
- Discuss: why is it important to observe safety measures while in the laboratory?
- Write the safety measures in exercise books for reference

Why is it important to always practise safety measures in the laboratory?

- Safety measures chart
- Internet access

- Oral questions - Written assignments

Scientific Investigation

Laboratory Safety - Importance of practising safety measures in the laboratory

By the end of the lesson, the learner should be able to:

- Design a poster on laboratory safety measures
- Summarise all laboratory safety topics: hazards, accident causes, first aid, and importance of safety
- Appreciate safety as a personal and collective responsibility

In groups, learners are guided to:
- In groups, design a poster on laboratory safety; present to the class
- As a class, choose the best poster to display in the school laboratory
- Discuss: why is it important to observe safety measures in the laboratory?

How do you communicate laboratory safety to others?

- Manila paper, markers
- Exercise books

- Observation - Assessment rubric

Scientific Investigation

Laboratory Safety - Importance of practising safety measures in the laboratory

By the end of the lesson, the learner should be able to:

- Design a poster on laboratory safety measures
- Summarise all laboratory safety topics: hazards, accident causes, first aid, and importance of safety
- Appreciate safety as a personal and collective responsibility

In groups, learners are guided to:
- In groups, design a poster on laboratory safety; present to the class
- As a class, choose the best poster to display in the school laboratory
- Discuss: why is it important to observe safety measures in the laboratory?

How do you communicate laboratory safety to others?

- Manila paper, markers
- Exercise books

- Observation - Assessment rubric

Scientific Investigation

Laboratory Safety - Common laboratory hazards and their symbols

By the end of the lesson, the learner should be able to:

- Complete Self-assessment 2 questions accurately covering all laboratory safety topics
- Identify hazard symbols, describe accident causes, demonstrate first aid, and explain safety importance
- Reflect on laboratory safety as essential for all science work

In groups, learners are guided to:
- Complete Self-assessment 2 questions 1–7 from the course book
- Discuss answers as a class; correct misconceptions
- Summarise: identify hazards, analyse accident causes, demonstrate first aid procedures

How well do you understand all aspects of laboratory safety?

- Exercise books

- Written test - Oral questions

Scientific Investigation

Laboratory Safety - Common laboratory hazards and their symbols

By the end of the lesson, the learner should be able to:

- Complete Self-assessment 2 questions accurately covering all laboratory safety topics
- Identify hazard symbols, describe accident causes, demonstrate first aid, and explain safety importance
- Reflect on laboratory safety as essential for all science work

In groups, learners are guided to:
- Complete Self-assessment 2 questions 1–7 from the course book
- Discuss answers as a class; correct misconceptions
- Summarise: identify hazards, analyse accident causes, demonstrate first aid procedures

How well do you understand all aspects of laboratory safety?

- Exercise books

- Written test - Oral questions

Scientific Investigation

Laboratory Safety - First aid safety measures for common laboratory accidents

By the end of the lesson, the learner should be able to:

- Apply laboratory safety knowledge to new accident scenarios
- Advise a fellow learner on the correct safety procedure for a given situation
- Show confidence in using laboratory safety knowledge in real contexts

- Present new accident scenarios and ask learners to identify hazards, state causes, and describe first aid
- Peer-assess each other's responses using a safety checklist
- Carry out a formal review of all Sub-strand 1.2 content

How do you apply laboratory safety knowledge to real laboratory situations?

- Safety scenario cards, checklist
- Exercise books

- Oral questions - Peer assessment

Scientific Investigation

Laboratory Safety - First aid safety measures for common laboratory accidents

By the end of the lesson, the learner should be able to:

- Apply laboratory safety knowledge to new accident scenarios
- Advise a fellow learner on the correct safety procedure for a given situation
- Show confidence in using laboratory safety knowledge in real contexts

- Present new accident scenarios and ask learners to identify hazards, state causes, and describe first aid
- Peer-assess each other's responses using a safety checklist
- Carry out a formal review of all Sub-strand 1.2 content

How do you apply laboratory safety knowledge to real laboratory situations?

- Safety scenario cards, checklist
- Exercise books

- Oral questions - Peer assessment

Scientific Investigation

Basic Science Skills - Identifying basic skills in science

By the end of the lesson, the learner should be able to:

- Identify the basic science process skills used in a given procedure
- Distinguish between observing, measuring, classifying, recording, and communicating
- Show interest in applying science process skills in investigations

- Read the procedure used by learners in an experiment (filling a bottle with coloured water); identify the skills used: measuring, observing, recording
- Discuss the five basic science process skills with examples from daily life
- Identify the science skills from the procedure: measuring height of water, observing change

What are the basic process skills used in scientific investigations?

- Plastic bottle, biro tube, cork, ruler, coloured water
- Exercise books

- Oral questions - Observation

Scientific Investigation

Basic Science Skills - The International System of Units (SI)

By the end of the lesson, the learner should be able to:

- Define the International System of Units (SI) and explain why it was developed
- Distinguish between base quantities and derived quantities
- Show precision when using SI units in recording scientific measurements

In groups, learners are guided to:
- Search the meaning of International System of Units on the internet
- Discuss: measurements in science must be standardised; scientists developed SI for this reason
- Distinguish base quantities (length, mass, time, temperature) from derived quantities (area, volume, density)

What is the International System of Units and why is it important in science?

- Internet access, digital device computer 
- Charts showing SI units

- Written assignments - Oral questions

Scientific Investigation

Basic Science Skills - The International System of Units (SI)

By the end of the lesson, the learner should be able to:

- Define the International System of Units (SI) and explain why it was developed
- Distinguish between base quantities and derived quantities
- Show precision when using SI units in recording scientific measurements

In groups, learners are guided to:
- Search the meaning of International System of Units on the internet
- Discuss: measurements in science must be standardised; scientists developed SI for this reason
- Distinguish base quantities (length, mass, time, temperature) from derived quantities (area, volume, density)

What is the International System of Units and why is it important in science?

- Internet access, digital device computer 
- Charts showing SI units

- Written assignments - Oral questions

Scientific Investigation

Basic Science Skills - The International System of Units (SI)

By the end of the lesson, the learner should be able to:

- Define the International System of Units (SI) and explain why it was developed
- Distinguish between base quantities and derived quantities
- Show precision when using SI units in recording scientific measurements

In groups, learners are guided to:
- Search the meaning of International System of Units on the internet
- Discuss: measurements in science must be standardised; scientists developed SI for this reason
- Distinguish base quantities (length, mass, time, temperature) from derived quantities (area, volume, density)

What is the International System of Units and why is it important in science?

- Internet access, digital device computer 
- Charts showing SI units

- Written assignments - Oral questions

Scientific Investigation

Laboratory apparatus and instruments - Heating apparatus and their uses

By the end of the lesson, the learner should be able to:

- Identify heating apparatus used in the laboratory: Bunsen burner, spirit lamp, portable burner, wire gauze, boiling tube, and tripod stand
- State the use of each identified heating apparatus
- Show interest in learning to use laboratory apparatus correctly

In groups, learners are guided to:
- Identify heating apparatus from pictures and real apparatus provided
- Match each item to its use: Bunsen burner (heat source), wire gauze (supports containers and distributes heat), tripod stand (supports beakers during heating), test tube holder (holds test tubes during heating)
- Record apparatus names and uses in a table

What apparatus is used for heating in the laboratory and what is each one used for?

- Bunsen burner, spirit lamp, wire gauze, tripod stand, test tube holder, boiling tube
- SEPU Kit

- Observation - Oral questions

Scientific Investigation

Laboratory apparatus and instruments - Heating apparatus and their uses

By the end of the lesson, the learner should be able to:

- Identify heating apparatus used in the laboratory: Bunsen burner, spirit lamp, portable burner, wire gauze, boiling tube, and tripod stand
- State the use of each identified heating apparatus
- Show interest in learning to use laboratory apparatus correctly

In groups, learners are guided to:
- Identify heating apparatus from pictures and real apparatus provided
- Match each item to its use: Bunsen burner (heat source), wire gauze (supports containers and distributes heat), tripod stand (supports beakers during heating), test tube holder (holds test tubes during heating)
- Record apparatus names and uses in a table

What apparatus is used for heating in the laboratory and what is each one used for?

- Bunsen burner, spirit lamp, wire gauze, tripod stand, test tube holder, boiling tube
- SEPU Kit

- Observation - Oral questions

Scientific Investigation

Laboratory apparatus and instruments - Glassware used in the laboratory

By the end of the lesson, the learner should be able to:

- Identify common glassware used in the laboratory: test tubes, beakers, conical flasks, boiling tubes, and round-bottomed flasks
- State the use of each identified glassware item
- Explain why most laboratory apparatus are made of glass

In groups, learners are guided to:
- Carry out Activity 8: identify glassware from pictures and real items; discuss why glass is used (transparent, heat-resistant, chemically inert)
- Match each glass item to its use from the course book table
- Discuss: in which case does the bottom of the beaker get dirty?

What glassware is used in the laboratory and why is glass the preferred material?

- Test tubes, beakers, conical flasks, boiling tubes, round-bottomed flasks
- Activity 8 apparatus

- Observation - Oral questions

Scientific Investigation

Laboratory apparatus and instruments - Glassware used in the laboratory

By the end of the lesson, the learner should be able to:

- Identify common glassware used in the laboratory: test tubes, beakers, conical flasks, boiling tubes, and round-bottomed flasks
- State the use of each identified glassware item
- Explain why most laboratory apparatus are made of glass

In groups, learners are guided to:
- Carry out Activity 8: identify glassware from pictures and real items; discuss why glass is used (transparent, heat-resistant, chemically inert)
- Match each glass item to its use from the course book table
- Discuss: in which case does the bottom of the beaker get dirty?

What glassware is used in the laboratory and why is glass the preferred material?

- Test tubes, beakers, conical flasks, boiling tubes, round-bottomed flasks
- Activity 8 apparatus

- Observation - Oral questions

Scientific Investigation

Laboratory apparatus and instruments - Glassware used in the laboratory

By the end of the lesson, the learner should be able to:

- Identify common glassware used in the laboratory: test tubes, beakers, conical flasks, boiling tubes, and round-bottomed flasks
- State the use of each identified glassware item
- Explain why most laboratory apparatus are made of glass

In groups, learners are guided to:
- Carry out Activity 8: identify glassware from pictures and real items; discuss why glass is used (transparent, heat-resistant, chemically inert)
- Match each glass item to its use from the course book table
- Discuss: in which case does the bottom of the beaker get dirty?

What glassware is used in the laboratory and why is glass the preferred material?

- Test tubes, beakers, conical flasks, boiling tubes, round-bottomed flasks
- Activity 8 apparatus

- Observation - Oral questions

Scientific Investigation

Laboratory apparatus and instruments - Measuring apparatus and magnification instruments

By the end of the lesson, the learner should be able to:

- Identify measuring apparatus: burette, pipette, syringe, volumetric flask, graduated beaker, and measuring cylinder
- Identify instruments for magnification: microscope and hand lens
- State the specific use of each measuring apparatus and explain why the microscope is preferred over a hand lens

In groups, learners are guided to:
- Identify measuring apparatus; match each to its function: pipette (fixed volumes), burette (accurate volumes), measuring cylinder (approximate volumes)
- Discuss why most apparatus are made of glass; discuss their differences in accuracy
- Discuss: why is the microscope preferred over a hand lens? (Higher magnifying power; shows finer details)

What measuring apparatus and magnification instruments are used in the laboratory?

- Burette, pipette, syringe, measuring cylinder, hand lens
- Charts

- Oral questions - Written assignments

Scientific Investigation

Laboratory apparatus and instruments - Measuring apparatus and magnification instruments

By the end of the lesson, the learner should be able to:

- Identify measuring apparatus: burette, pipette, syringe, volumetric flask, graduated beaker, and measuring cylinder
- Identify instruments for magnification: microscope and hand lens
- State the specific use of each measuring apparatus and explain why the microscope is preferred over a hand lens

In groups, learners are guided to:
- Identify measuring apparatus; match each to its function: pipette (fixed volumes), burette (accurate volumes), measuring cylinder (approximate volumes)
- Discuss why most apparatus are made of glass; discuss their differences in accuracy
- Discuss: why is the microscope preferred over a hand lens? (Higher magnifying power; shows finer details)

What measuring apparatus and magnification instruments are used in the laboratory?

- Burette, pipette, syringe, measuring cylinder, hand lens
- Charts

- Oral questions - Written assignments

Scientific Investigation

Laboratory apparatus and instruments - Other laboratory apparatus

By the end of the lesson, the learner should be able to:

- Identify support and other apparatus: mortar and pestle, test tube rack, filter funnel, separating funnel, evaporating dish, forceps, tongs, retort stand and clamp, spatula, and scalpel blade
- State the use of each identified apparatus
- Appreciate the variety of apparatus available for different laboratory tasks

In groups, learners are guided to:
- Identify support and other apparatus from pictures and real items provided
- Match each item to its use: retort stand and clamp (holds and supports burettes), mortar and pestle (grinding solids), evaporating dish (evaporating liquids)
- Discuss: which apparatus would you use to measure mass, temperature, and time?

What support and other apparatus are used in the laboratory?

- Mortar and pestle, test tube rack, evaporating dish, retort stand and clamp, forceps, tongs, spatula
- Charts

- Oral questions - Written assignments

Scientific Investigation

Laboratory apparatus and instruments - Other laboratory apparatus

By the end of the lesson, the learner should be able to:

- Identify support and other apparatus: mortar and pestle, test tube rack, filter funnel, separating funnel, evaporating dish, forceps, tongs, retort stand and clamp, spatula, and scalpel blade
- State the use of each identified apparatus
- Appreciate the variety of apparatus available for different laboratory tasks

In groups, learners are guided to:
- Identify support and other apparatus from pictures and real items provided
- Match each item to its use: retort stand and clamp (holds and supports burettes), mortar and pestle (grinding solids), evaporating dish (evaporating liquids)
- Discuss: which apparatus would you use to measure mass, temperature, and time?

What support and other apparatus are used in the laboratory?

- Mortar and pestle, test tube rack, evaporating dish, retort stand and clamp, forceps, tongs, spatula
- Charts

- Oral questions - Written assignments

Scientific Investigation

Laboratory apparatus and instruments - How to handle and care for apparatus

By the end of the lesson, the learner should be able to:

- Describe correct procedures for handling and caring for laboratory apparatus
- Explain why glass apparatus must be handled with care and how to clean them safely
- Develop a habit of cleaning and storing apparatus correctly after use

In groups, learners are guided to:
- Read and discuss the conversation between Alice, John, and Mr. Tony on handling and caring for glass apparatus
- Discuss: how do we protect glass apparatus from breaking? Walk carefully; do not let them strike each other; handle with care when cleaning
- Discuss: if glass apparatus breaks, what is the right thing to do?

Why is it important to handle and care for laboratory apparatus correctly?

- Basic apparatus
- Conversation in course book

- Oral questions - Observation

Scientific Investigation

Laboratory apparatus and instruments - How to handle and care for apparatus

By the end of the lesson, the learner should be able to:

- Describe correct procedures for handling and caring for laboratory apparatus
- Explain why glass apparatus must be handled with care and how to clean them safely
- Develop a habit of cleaning and storing apparatus correctly after use

In groups, learners are guided to:
- Read and discuss the conversation between Alice, John, and Mr. Tony on handling and caring for glass apparatus
- Discuss: how do we protect glass apparatus from breaking? Walk carefully; do not let them strike each other; handle with care when cleaning
- Discuss: if glass apparatus breaks, what is the right thing to do?

Why is it important to handle and care for laboratory apparatus correctly?

- Basic apparatus
- Conversation in course book

- Oral questions - Observation

Scientific Investigation

Laboratory apparatus and instruments - Consumer protection + Self-assessment 4

By the end of the lesson, the learner should be able to:

- Explain the importance of consumer protection when handling laboratory apparatus and chemicals
- Identify consumer protection symbols and relate them to Table 1.1 on page 11
- Attempt Self-assessment 4 questions accurately

In groups, learners are guided to:
- Discuss consumer protection: manufacturers and users both have a role in safety when handling chemicals and apparatus
- Identify consumer protection symbols; refer to Table 1.1 (pg 11); discuss the role of these symbols in consumer protection
- Complete Self-assessment 4 questions 1–10; review and correct answers as a class

How do consumer protection measures keep laboratory users safe?

- Consumer protection symbols chart
- Exercise books

- Written test - Oral questions

Mixtures, Elements and Compounds

Mixtures - Classification of mixtures

By the end of the lesson, the learner should be able to:

- Define the term mixture and give examples from daily life
- Categorise given mixtures as homogeneous or heterogeneous using Activity 1
- Show interest in identifying mixtures in the environment

In groups, learners are guided to:
- Discuss the meaning of a mixture: maize and beans, tea, salty water, muddy water
- Carry out Activity 1: classify provided mixtures as homogeneous or heterogeneous; complete Table 2.1
- Share and compare classification results with other groups

What is a mixture and how are mixtures classified?

- Maize and beans, salty water, muddy water, English dictionary

- Observation - Oral questions

Mixtures, Elements and Compounds

Mixtures - Classification of mixtures

By the end of the lesson, the learner should be able to:

- Define the term mixture and give examples from daily life
- Categorise given mixtures as homogeneous or heterogeneous using Activity 1
- Show interest in identifying mixtures in the environment

In groups, learners are guided to:
- Discuss the meaning of a mixture: maize and beans, tea, salty water, muddy water
- Carry out Activity 1: classify provided mixtures as homogeneous or heterogeneous; complete Table 2.1
- Share and compare classification results with other groups

What is a mixture and how are mixtures classified?

- Maize and beans, salty water, muddy water, English dictionary

- Observation - Oral questions

Mixtures, Elements and Compounds

Mixtures - Classification of mixtures

By the end of the lesson, the learner should be able to:

- Define the term mixture and give examples from daily life
- Categorise given mixtures as homogeneous or heterogeneous using Activity 1
- Show interest in identifying mixtures in the environment

In groups, learners are guided to:
- Discuss the meaning of a mixture: maize and beans, tea, salty water, muddy water
- Carry out Activity 1: classify provided mixtures as homogeneous or heterogeneous; complete Table 2.1
- Share and compare classification results with other groups

What is a mixture and how are mixtures classified?

- Maize and beans, salty water, muddy water, English dictionary

- Observation - Oral questions

Mixtures, Elements and Compounds

Mixtures - Simple distillation

By the end of the lesson, the learner should be able to:

- Describe simple distillation as a method of separating a solute from a solvent
- Set up the distillation apparatus correctly and separate salt and water
- Show care and safety when handling heated apparatus

In groups, learners are guided to:
- Set up apparatus as in Figure 2.4; separate salt and water by simple distillation
- Identify the distillate (water) and the residue (salt)
- Discuss: what types of mixtures can be separated by simple distillation?

What types of mixtures can be separated by simple distillation?

- Table salt, water, boiling tubes, delivery tube, ice-cold water, glass beads, source of heat

- Practical work - Observation schedule

Mixtures, Elements and Compounds

Mixtures - Simple distillation

By the end of the lesson, the learner should be able to:

- Describe simple distillation as a method of separating a solute from a solvent
- Set up the distillation apparatus correctly and separate salt and water
- Show care and safety when handling heated apparatus

In groups, learners are guided to:
- Set up apparatus as in Figure 2.4; separate salt and water by simple distillation
- Identify the distillate (water) and the residue (salt)
- Discuss: what types of mixtures can be separated by simple distillation?

What types of mixtures can be separated by simple distillation?

- Table salt, water, boiling tubes, delivery tube, ice-cold water, glass beads, source of heat

- Practical work - Observation schedule

Mixtures, Elements and Compounds

Mixtures - Fractional distillation

By the end of the lesson, the learner should be able to:

- Describe fractional distillation as a method of separating miscible liquid-liquid mixtures
- Separate ethanol and water using fractional distillation
- Appreciate the role of the fractionating column in achieving clean separation

In groups, learners are guided to:
- Set up the fractionating column apparatus; heat ethanol-water mixture; maintain temperature at about 80 °C
- Test the distillate with a burning splint to confirm it is ethanol
- Discuss how glass beads in the column increase surface area for re-condensation

How does fractional distillation separate a mixture of ethanol and water?

- Fractionating column, thermometer, round-bottomed flask, Liebig condenser, ethanol, water, source of heat

- Practical work - Oral questions

Mixtures, Elements and Compounds

Mixtures - Fractional distillation

By the end of the lesson, the learner should be able to:

- Describe fractional distillation as a method of separating miscible liquid-liquid mixtures
- Separate ethanol and water using fractional distillation
- Appreciate the role of the fractionating column in achieving clean separation

In groups, learners are guided to:
- Set up the fractionating column apparatus; heat ethanol-water mixture; maintain temperature at about 80 °C
- Test the distillate with a burning splint to confirm it is ethanol
- Discuss how glass beads in the column increase surface area for re-condensation

How does fractional distillation separate a mixture of ethanol and water?

- Fractionating column, thermometer, round-bottomed flask, Liebig condenser, ethanol, water, source of heat

- Practical work - Oral questions

Mixtures, Elements and Compounds

Mixtures - Use of a magnet

By the end of the lesson, the learner should be able to:

- Describe the use of a magnet to separate mixtures containing magnetic materials
- Separate iron filings from maize flour using a magnet
- Identify real-life applications of magnetic separation

In groups, learners are guided to:
- Mix iron filings with maize flour; move a magnet over the mixture; observe which component is attracted
- Discuss applications: glass recycling, iron recycling, flour mills, and sugar mills
- Record observations and applications in exercise books

How is a magnet used to separate a mixture of iron filings and maize flour?

- Iron filings, maize flour, magnet, piece of paper

- Practical work - Observation

Mixtures, Elements and Compounds

Mixtures - Use of a magnet

By the end of the lesson, the learner should be able to:

- Describe the use of a magnet to separate mixtures containing magnetic materials
- Separate iron filings from maize flour using a magnet
- Identify real-life applications of magnetic separation

In groups, learners are guided to:
- Mix iron filings with maize flour; move a magnet over the mixture; observe which component is attracted
- Discuss applications: glass recycling, iron recycling, flour mills, and sugar mills
- Record observations and applications in exercise books

How is a magnet used to separate a mixture of iron filings and maize flour?

- Iron filings, maize flour, magnet, piece of paper

- Practical work - Observation

Mixtures, Elements and Compounds

Mixtures - Sublimation

By the end of the lesson, the learner should be able to:

- Describe sublimation as a method of separating a mixture when one component sublimes
- Carry out sublimation to separate iodine from sodium chloride
- Show caution when handling iodine vapour

In groups, learners are guided to:
- Carry out activity outdoors: place mixture in crucible; cover with ice-cold round-bottomed flask; heat gently
- Observe iodine vapour depositing on the cold surface; sodium chloride remains in crucible
- Research other substances that undergo sublimation

What is sublimation and how is it used to separate iodine from sodium chloride?

- Iodine crystals, sodium chloride, crucible, round-bottomed flask, ice-cold water, source of heat

- Practical work - Observation schedule

Mixtures, Elements and Compounds

Mixtures - Paper chromatography

By the end of the lesson, the learner should be able to:

- Describe paper chromatography as a method of separating coloured mixtures
- Carry out Activity 11 to separate components of green leaf extract
- Define chromatogram and solvent front

In groups, learners are guided to:
- Carry out Activity 11: crush green leaves with propanone; apply extract to filter paper; add propanone drops to develop chromatogram (Figure 2.11)
- Observe colour rings forming; identify the solvent front (Figure 2.12)
- Discuss why components travel different distances

How does paper chromatography separate the coloured components of a mixture?

- Green leaves, mortar and pestle, filter paper, two beakers, propanone, droppers

- Practical work - Oral questions

Mixtures, Elements and Compounds

Mixtures - Paper chromatography

By the end of the lesson, the learner should be able to:

- Describe paper chromatography as a method of separating coloured mixtures
- Carry out Activity 11 to separate components of green leaf extract
- Define chromatogram and solvent front

In groups, learners are guided to:
- Carry out Activity 11: crush green leaves with propanone; apply extract to filter paper; add propanone drops to develop chromatogram (Figure 2.11)
- Observe colour rings forming; identify the solvent front (Figure 2.12)
- Discuss why components travel different distances

How does paper chromatography separate the coloured components of a mixture?

- Green leaves, mortar and pestle, filter paper, two beakers, propanone, droppers

- Practical work - Oral questions

Mixtures, Elements and Compounds

Mixtures - Paper chromatography

By the end of the lesson, the learner should be able to:

- Describe paper chromatography as a method of separating coloured mixtures
- Carry out Activity 11 to separate components of green leaf extract
- Define chromatogram and solvent front

In groups, learners are guided to:
- Carry out Activity 11: crush green leaves with propanone; apply extract to filter paper; add propanone drops to develop chromatogram (Figure 2.11)
- Observe colour rings forming; identify the solvent front (Figure 2.12)
- Discuss why components travel different distances

How does paper chromatography separate the coloured components of a mixture?

- Green leaves, mortar and pestle, filter paper, two beakers, propanone, droppers

- Practical work - Oral questions

Mixtures, Elements and Compounds

Mixtures - Paper chromatography

By the end of the lesson, the learner should be able to:

- Describe paper chromatography as a method of separating coloured mixtures
- Carry out Activity 11 to separate components of green leaf extract
- Define chromatogram and solvent front

In groups, learners are guided to:
- Carry out Activity 11: crush green leaves with propanone; apply extract to filter paper; add propanone drops to develop chromatogram (Figure 2.11)
- Observe colour rings forming; identify the solvent front (Figure 2.12)
- Discuss why components travel different distances

How does paper chromatography separate the coloured components of a mixture?

- Green leaves, mortar and pestle, filter paper, two beakers, propanone, droppers

- Practical work - Oral questions

Mixtures, Elements and Compounds

Mixtures - Solvent extraction

By the end of the lesson, the learner should be able to:

- Describe solvent extraction as a method of separating oils from nuts or seeds
- Carry out Activity 12 to extract oil from nuts using propanone
- Explain why water cannot be used as the solvent for oils

In groups, learners are guided to:
- Carry out Activity 12: crush nuts; add propanone; decant extract; evaporate solvent in sun
- Test residue on filter paper: translucent spot confirms oil
- Discuss applications: dry cleaning, extracting dyes, and extracting drugs from plants

How is solvent extraction used to obtain oil from nuts and seeds?

- Macadamia or groundnuts, propanone, mortar and pestle, evaporating dish, filter paper

- Practical work - Observation

Mixtures, Elements and Compounds

Mixtures - Crystallisation

By the end of the lesson, the learner should be able to:

- Describe crystallisation as a method of separating a dissolved solid from its solution
- Carry out the activity to obtain copper(II) sulphate crystals from a saturated solution
- Explain what a saturated solution is

In groups, learners are guided to:
- Prepare a saturated copper(II) sulphate solution; heat over water bath (Figure 2.15); cover with punctured filter paper overnight
- Observe crystals formed the following day (Figure 2.16); record their appearance
- Discuss: what is a saturated solution? Why must the solution be cooled slowly for good crystals?

How does crystallisation separate a dissolved solid from its solution?

- Copper(II) sulphate, water, evaporating dish, beakers, filter paper, source of heat

- Practical work - Observation schedule

Mixtures, Elements and Compounds

Mixtures - Crystallisation

By the end of the lesson, the learner should be able to:

- Describe crystallisation as a method of separating a dissolved solid from its solution
- Carry out the activity to obtain copper(II) sulphate crystals from a saturated solution
- Explain what a saturated solution is

In groups, learners are guided to:
- Prepare a saturated copper(II) sulphate solution; heat over water bath (Figure 2.15); cover with punctured filter paper overnight
- Observe crystals formed the following day (Figure 2.16); record their appearance
- Discuss: what is a saturated solution? Why must the solution be cooled slowly for good crystals?

How does crystallisation separate a dissolved solid from its solution?

- Copper(II) sulphate, water, evaporating dish, beakers, filter paper, source of heat

- Practical work - Observation schedule

Mixtures, Elements and Compounds

Mixtures - Crystallisation

By the end of the lesson, the learner should be able to:

- Describe crystallisation as a method of separating a dissolved solid from its solution
- Carry out the activity to obtain copper(II) sulphate crystals from a saturated solution
- Explain what a saturated solution is

In groups, learners are guided to:
- Prepare a saturated copper(II) sulphate solution; heat over water bath (Figure 2.15); cover with punctured filter paper overnight
- Observe crystals formed the following day (Figure 2.16); record their appearance
- Discuss: what is a saturated solution? Why must the solution be cooled slowly for good crystals?

How does crystallisation separate a dissolved solid from its solution?

- Copper(II) sulphate, water, evaporating dish, beakers, filter paper, source of heat

- Practical work - Observation schedule

Mixtures, Elements and Compounds

Mixtures - Applications of methods of separating mixtures

By the end of the lesson, the learner should be able to:

- State the real-life and industrial applications of methods of separating mixtures
- Explain how fractional distillation refines crude oil and separates components of air
- Appreciate the industrial importance of separation techniques

In groups, learners are guided to:
- Discuss crude oil refining: fractionating column separates fractions (Figure 2.17)
- Discuss separation of air components by fractional distillation (Figure 2.18)
- Research applications of chromatography in sports, food, and pharmaceutical industries

How are methods of separating mixtures applied in everyday and industrial contexts?

- Charts: 
- Internet access

- Oral questions - Written assignments

Mixtures, Elements and Compounds

Mixtures - Applications of methods of separating mixtures

By the end of the lesson, the learner should be able to:

- State the real-life and industrial applications of methods of separating mixtures
- Explain how fractional distillation refines crude oil and separates components of air
- Appreciate the industrial importance of separation techniques

In groups, learners are guided to:
- Discuss crude oil refining: fractionating column separates fractions (Figure 2.17)
- Discuss separation of air components by fractional distillation (Figure 2.18)
- Research applications of chromatography in sports, food, and pharmaceutical industries

How are methods of separating mixtures applied in everyday and industrial contexts?

- Charts: 
- Internet access

- Oral questions - Written assignments