Mixtures, Elements and Compounds

Acids, Bases and Indicators - Introduction to acids and bases

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

- Identify common examples of acids — lemon juice, fermented milk, ginger extract — and bases — baking powder solution
- Explain why tasting is not a safe method of identifying acids and bases in the laboratory
- Show awareness of the importance of using safe methods when classifying substances as acids or bases

In groups, learners are guided to:
- Study pictures of a lemon, ginger, fermented milk and baking powder and discuss which are acidic and which are basic based on taste
- Discuss why tasting is not safe in the laboratory and identify alternative safe methods of classification
- Write short notes on the meaning of acids and bases and share for peer review

Why is it unsafe to taste substances in the laboratory in order to identify them as acids or bases?

- Spotlight Integrated Science pg. 118
- Digital resources
- Reference books

- Oral questions - Written assignments - Observation

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Classifying solutions using litmus paper

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

- Use red and blue litmus papers to classify lemon juice, ginger extract, fermented milk and baking powder solution as acidic or basic
- Explain the colour change of litmus paper in acidic and basic solutions
- Appreciate litmus paper as a safe and reliable indicator for classifying substances

In groups, learners are guided to:
- Measure 10 ml of lemon juice into a test tube, dip red and blue litmus papers and record colour changes in a table
- Repeat using ginger extract, fermented milk and baking powder solution and record all observations
- Discuss the colour changes observed and write a conclusion on how litmus paper identifies acids and bases

How does the colour change of litmus paper confirm whether a solution is acidic or basic?

- Spotlight Integrated Science pg. 119
- Lemon juice, measuring cylinder, ginger extract, fermented milk, baking powder solution, labels, test tube rack, test tubes, blue litmus papers, red litmus papers
- Digital resources

- Practical assessment - Observation - Written assignments

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Classifying solutions using litmus paper

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

- Use red and blue litmus papers to classify lemon juice, ginger extract, fermented milk and baking powder solution as acidic or basic
- Explain the colour change of litmus paper in acidic and basic solutions
- Appreciate litmus paper as a safe and reliable indicator for classifying substances

In groups, learners are guided to:
- Measure 10 ml of lemon juice into a test tube, dip red and blue litmus papers and record colour changes in a table
- Repeat using ginger extract, fermented milk and baking powder solution and record all observations
- Discuss the colour changes observed and write a conclusion on how litmus paper identifies acids and bases

How does the colour change of litmus paper confirm whether a solution is acidic or basic?

- Spotlight Integrated Science pg. 119
- Lemon juice, measuring cylinder, ginger extract, fermented milk, baking powder solution, labels, test tube rack, test tubes, blue litmus papers, red litmus papers
- Digital resources

- Practical assessment - Observation - Written assignments

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Classifying household solutions as acidic or basic

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

- Use litmus papers to classify household solutions — orange juice, vinegar, soap solution, wood ash solution, toothpaste, antacid, distilled water, bleach, common salt and sugar solution — as acidic, basic or neutral
- Explain that neutral solutions cause no colour change in either litmus paper
- Show care when handling household chemicals in the laboratory

In groups, learners are guided to:
- Measure 3 cm³ of orange juice and dip red and blue litmus papers, record colour changes in Table 2.10
- Repeat using all other household solutions and record observations for each
- Discuss results and classify each solution as acidic, basic or neutral based on colour changes

What household substances are acidic or basic, and why is it important to know this?

- Spotlight Integrated Science pg. 120
- Orange juice, vinegar, soap solution, wood ash solution, toothpaste solution, antacid solution, fermented milk, distilled water, bleach, common salt solution, sugar solution, test tubes, droppers, test tube rack, measuring cylinder, red and blue litmus papers
- Digital resources

- Practical assessment - Observation - Oral questions

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Preparing and using a plant extract indicator

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

- Prepare an acid-base indicator from hibiscus flower petals using propanone and filtration
- Use the prepared plant extract to classify household solutions as acidic, basic or neutral
- Show environmental awareness by plucking only the flower petals needed and safely disposing of plant remains

In groups, learners are guided to:
- Cut hibiscus flower petals into small pieces, grind in a mortar with propanone, filter the coloured extract into a beaker
- Add two drops of the plant extract to test tubes containing lemon juice, soap solution, wood ash solution, orange juice, vinegar and other household solutions and record the colour changes in Table 2.11
- Compare colour changes with litmus paper results and discuss which solutions are acidic, basic or neutral

How does a plant extract work as an acid-base indicator, and how does it compare to litmus paper?

- Spotlight Integrated Science pg. 121
- Hibiscus flowers, scalpel, mortar, pestle, propanone, filter funnel, beakers, test tubes, droppers, test tube rack, measuring cylinder, household solutions
- Digital resources

- Practical assessment - Observation - Written assignments

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Physical properties of acids and bases

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

- Identify the physical properties of acids — sour taste, turns red litmus paper blue, corrosive, conducts electricity
- Identify the physical properties of bases — bitter taste, turns red litmus paper blue, slippery feel, conducts electricity
- Show safety awareness by following correct procedures when investigating properties of acids and bases

In groups, learners are guided to:
- Use digital or print media to search for physical properties of acids and bases and write findings in exercise books
- Taste fermented milk and lemon juice using a clean spoon to observe the sour taste of acids
- Pour a little soap solution on the palm, rub and discuss the slippery feel of bases

What are the key differences between the physical properties of acids and those of bases?

- Spotlight Integrated Science pg. 123
- Fermented milk, lemon juice, ginger extract, clean spoons, digital resources
- Reference books

- Oral questions - Written assignments - Observation

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Physical properties of acids and bases

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

- Identify the physical properties of acids — sour taste, turns red litmus paper blue, corrosive, conducts electricity
- Identify the physical properties of bases — bitter taste, turns red litmus paper blue, slippery feel, conducts electricity
- Show safety awareness by following correct procedures when investigating properties of acids and bases

In groups, learners are guided to:
- Use digital or print media to search for physical properties of acids and bases and write findings in exercise books
- Taste fermented milk and lemon juice using a clean spoon to observe the sour taste of acids
- Pour a little soap solution on the palm, rub and discuss the slippery feel of bases

What are the key differences between the physical properties of acids and those of bases?

- Spotlight Integrated Science pg. 123
- Fermented milk, lemon juice, ginger extract, clean spoons, digital resources
- Reference books

- Oral questions - Written assignments - Observation

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Investigating physical properties using litmus and corrosiveness

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

- Investigate the effect of dilute sulphuric acid and dilute sodium hydroxide on red and blue litmus papers
- Record observations on the colour changes produced by acids and bases in litmus papers
- Appreciate the importance of handling corrosive acids and bases with protective clothing and care

In groups, learners are guided to:
- Measure 2 cm³ of dilute sulphuric acid into a test tube, dip red and blue litmus papers and record colour changes in Table 2.12
- Repeat using dilute sodium hydroxide solution and record colour changes
- Discuss and summarise the physical properties of acids and bases from all practical observations

How do the colour changes in litmus paper confirm the physical properties of an acid or a base?

- Spotlight Integrated Science pg. 124
- Red and blue litmus papers, droppers, dilute sulphuric acid, dilute sodium hydroxide, test tubes, test tube rack, measuring cylinder, protective clothing
- Digital resources

- Practical assessment - Observation - Written assignments

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Electrical conductivity of acids and bases

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

- Investigate whether dilute sulphuric acid and dilute sodium hydroxide conduct electricity
- Explain that solutions of acids and bases conduct electricity because they contain ions
- Show care when setting up an electrical circuit involving liquid conductors

In groups, learners are guided to:
- Set up a conductivity circuit using a dry cell, switch, bulb, connecting wire, graphite rods, rubber cork and glass beaker
- Pour dilute sulphuric acid into the beaker, close the switch and observe whether the bulb lights
- Repeat using dilute sodium hydroxide solution and distilled water, then drain and rinse the beaker after each test

Why do solutions of acids and bases conduct electricity while distilled water does not?

- Spotlight Integrated Science pg. 125
- Measuring cylinder, glass beaker, rubber cork, connecting wire, dry cell, switch, graphite rods, dilute sulphuric acid, dilute sodium hydroxide, distilled water
- Digital resources

- Practical assessment - Observation - Oral questions

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Introduction to applications of acids, bases and indicators

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

- Identify common examples of acids, bases and indicators used in daily life — vinegar, toothpaste, fertiliser, car battery, antacid tablets and soil indicators
- Link each substance to a specific acid, base or indicator
- Show curiosity about the scientific basis of everyday substances

In groups, learners are guided to:
- Study pictures of vinegar, toothpaste, fertiliser, car battery, antacid tablets and discuss which contain acids, bases or indicators
- Use digital or print media to search for applications of acids, bases and indicators and write findings in exercise books
- Share findings with classmates for peer assessment

How do acids and bases play a role in substances and activities you encounter every day?

- Spotlight Integrated Science pg. 126
- Digital resources
- Reference books
- Pictures of acids, bases and indicator products

- Oral questions - Written assignments - Peer assessment

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Discussing applications of acids and bases

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

- Describe specific applications of acids and bases in real life — wood ash for removing bad smell, antacid tablets for acidity, lime for neutralising soil
- Apply knowledge of acids and bases to explain the scenarios shown in pictures and discussion cards
- Appreciate the practical value of acids and bases in solving everyday problems

In groups, learners are guided to:
- Study pictures of Patrick using wood ash and Nimo taking antacid tablets and explain the role of acids or bases in each scenario
- Discuss other applications of acids and bases at home, in agriculture and in medicine
- Write short notes on applications of acids and bases in at least four real-life contexts and share for peer review

How does knowing whether a substance is an acid or a base help you make better decisions in daily life?

- Spotlight Integrated Science pg. 127
- Digital resources
- Reference books

- Oral questions - Written assignments - Observation

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Discussing applications of acids and bases

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

- Describe specific applications of acids and bases in real life — wood ash for removing bad smell, antacid tablets for acidity, lime for neutralising soil
- Apply knowledge of acids and bases to explain the scenarios shown in pictures and discussion cards
- Appreciate the practical value of acids and bases in solving everyday problems

In groups, learners are guided to:
- Study pictures of Patrick using wood ash and Nimo taking antacid tablets and explain the role of acids or bases in each scenario
- Discuss other applications of acids and bases at home, in agriculture and in medicine
- Write short notes on applications of acids and bases in at least four real-life contexts and share for peer review

How does knowing whether a substance is an acid or a base help you make better decisions in daily life?

- Spotlight Integrated Science pg. 127
- Digital resources
- Reference books

- Oral questions - Written assignments - Observation

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Investigating use of indicators in real life

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

- Describe how indicators are used to test the acidity and basicity of soil samples
- Carry out a practical activity using a plant extract to test different soil samples and record results
- Show appreciation for the role of indicators in maintaining soil health for crop production

In groups, learners are guided to:
- Weigh four soil samples A, B, C and D using an electronic balance and transfer each into a separate conical flask with distilled water
- Set up filtration apparatus and filter each soil sample mixture, then dip red and blue litmus papers into each filtrate
- Record which soil samples are acidic, basic or neutral and discuss the implications for farming

How do farmers use indicators to determine whether soil needs treatment before planting crops?

- Spotlight Integrated Science pg. 128
- Four soil samples, electronic balance, conical flasks, droppers, filter funnel, filter paper, measuring cylinder, beaker, red and blue litmus papers
- Digital resources

- Practical assessment - Observation - Written assignments

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Indicator practical results and conclusions

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

- Interpret results from the soil indicator practical and draw conclusions about soil acidity
- Explain that soil can become acidic over time and describe how lime is used to neutralise acidic soil
- Show concern for sustainable farming practices by linking soil acidity to crop health

- Discuss practical activity results — which soil samples turned litmus paper red or blue — and draw a conclusion table
- Read the points to note summarising what learners observed about filtrate colour and soil acidity
- Answer discussion questions on how indicators can be used in real life to prevent soil acidification and crop loss

What should a farmer do after discovering that the soil on their farm is too acidic, and why?

- Spotlight Integrated Science pg. 129
- Learner exercise books
- Digital resources
- Reference books

- Oral questions - Written assignments - Peer assessment

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Indicator practical results and conclusions

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

- Interpret results from the soil indicator practical and draw conclusions about soil acidity
- Explain that soil can become acidic over time and describe how lime is used to neutralise acidic soil
- Show concern for sustainable farming practices by linking soil acidity to crop health

- Discuss practical activity results — which soil samples turned litmus paper red or blue — and draw a conclusion table
- Read the points to note summarising what learners observed about filtrate colour and soil acidity
- Answer discussion questions on how indicators can be used in real life to prevent soil acidification and crop loss

What should a farmer do after discovering that the soil on their farm is too acidic, and why?

- Spotlight Integrated Science pg. 129
- Learner exercise books
- Digital resources
- Reference books

- Oral questions - Written assignments - Peer assessment

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Summarising uses of acids, bases and indicators

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

- State the specific uses of acids — sulphuric acid in fertilisers, citric acid in food preservation, carbonic acid in fizzy drinks
- State the uses of bases — magnesium hydroxide as antacid, calcium hydroxide to neutralise acidic soils, sodium hydroxide in soap
- Show appreciation for the chemistry behind products used in daily life

- Read a class conversation between teacher Wahome and learners at Langi Junior School discussing uses of acids, bases and indicators
- Write the uses of acids, bases and indicators as explained in the conversation
- Discuss other uses of acids, bases and indicators not mentioned in the conversation and add to notes

How does knowing the specific uses of acids and bases help you understand the products you use every day?

- Spotlight Integrated Science pg. 130
- Digital resources
- Reference books

- Oral questions - Written assignments - Peer assessment

Mixtures, Elements and Compounds

Acids, Bases and Indicators - Uses of acids, bases and indicators flash cards

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

- Apply knowledge of uses of acids, bases and indicators to create informative flash cards
- Recall at least three uses each of acids, bases and indicators from the summary points to note
- Show creativity and communication skills when designing and presenting flash cards

In groups, learners are guided to:
- Read flash cards from Ken, Brenda and Ritah describing uses of indicators in farming, acids in car batteries and bases in antacids
- Create personal flash cards appreciating at least one use each of acids, bases and indicators in daily life
- Display flash cards at the Integrated Science corner and present to classmates

Why do you think it is important for a Grade 7 learner to know the uses of acids, bases and indicators in real life?

- Spotlight Integrated Science pg. 131
- Flash card materials — cardboard, markers
- Digital resources

- Peer assessment - Oral questions - Observation

Mixtures, Elements and Compounds

Acids, Bases and Indicators - End of sub-strand assessment

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

- Demonstrate understanding of acids, bases and indicators across all topics — identification, preparation, physical properties, applications and uses
- Apply knowledge to classify solutions, describe properties and explain real-life uses in assessment questions
- Show confidence and accuracy when responding to written and oral assessment tasks

In groups, learners are guided to:
- Group given solutions as acidic or basic using Assessment Activity 2.2 questions
- Answer questions on physical properties, litmus paper colour changes and applications of acids, bases and indicators
- Complete the self-assessment table for sub-strand 2.2 and identify areas for further review

How well can you identify, describe and explain the uses of acids, bases and indicators after completing this sub-strand?

- Spotlight Integrated Science pg. 132
- Learner exercise books
- Digital resources

- Written test - Oral questions - Self-assessment

Force and Energy

Electrical Energy - Sources of electricity in the environment

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

- Identify natural sources of electricity in the environment (solar, wind, hydro-electric, geothermal)
- Describe how each natural source generates electricity
- Show appreciation for natural energy sources available in the environment

In groups, learners are guided to:
- Discuss sources of electricity used at home, in hospitals, schools, and markets
- Study pictures of sources of electricity (solar panels, windmills, geothermal plant, hydroelectric plant, battery, dry cell, fossil fuel station, nuclear power plant) and identify each
- Use print or digital media to search for more information on sources of electricity

What are the sources of electricity in the environment?

- Spotlight Integrated Science pg. 172
- Pictures of electricity sources (charts)
- Internet access / digital media

- Oral questions - Observation - Anecdotal records

Force and Energy

Electrical Energy - Sources of electricity: generated and alternative sources

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

- Identify generated sources of electricity (electrical cells, fossil fuels, biomass, nuclear, tidal-wave, natural gas)
- Describe how each generated source produces electric power
- Show interest in how different sources of electricity compare

In groups, learners are guided to:
- Discuss how windmills, solar panels, fossil fuels, geothermal, hydroelectric, and nuclear sources generate electricity
- Describe biomass, natural gas, and tidal-wave electricity generation using the course book diagrams
- Write short notes on sources of electricity and share with classmates

How do different sources generate electricity?

- Spotlight Integrated Science pg. 173
- Diagrams of biomass and nuclear electricity production
- Reference books

- Oral questions - Written assignments

Force and Energy

Electrical Energy - Renewable and non-renewable electricity sources
Electrical Energy - Components of a simple electrical circuit

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

- Classify electricity sources as renewable or non-renewable
- Explain the importance of using renewable energy sources for environmental sustainability
- Show concern for responsible and sustainable energy use

In groups, learners are guided to:
- Classify electricity sources into renewable (solar, wind, hydro, geothermal, tidal-wave, biomass) and non-renewable (fossil fuels, nuclear)
- Discuss advantages and disadvantages of each category
- With parents or guardians, find out sources of electricity available in the local area and share findings

Why is it important to use renewable sources of electricity?

- Spotlight Integrated Science pg. 174
- Classification chart
- Reference books
- Spotlight Integrated Science pg. 175
- Dry cells, connecting wires, bulb and bulb holder, switch
- Circuit diagram charts

- Written assignments - Oral questions

Force and Energy

Electrical Energy - Setting up a series circuit

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

- Set up a simple electrical circuit with cells and bulbs connected in series
- Observe and explain the behaviour of bulbs in a series circuit
- Show care and responsibility when handling electrical circuit components

In groups, learners are guided to:
- Arrange two dry cells in series (positive terminal of one touching negative of the other) and connect to a bulb, holder, and switch
- Close the circuit and observe that the bulb lights up
- Add a second bulb in series and observe brightness; remove one bulb and observe what happens

How does a series circuit behave when one component is removed?

- Spotlight Integrated Science pg. 176
- Two dry cells, two bulbs, two bulb holders, switch, connecting wires
- Safety guidelines

- Practical work - Observation - Checklist

Force and Energy

Electrical Energy - Setting up a parallel circuit
Electrical Energy - Comparing series and parallel circuits

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

- Set up a simple electrical circuit with cells and bulbs connected in parallel
- Observe and explain the behaviour of bulbs in a parallel circuit
- Appreciate why parallel circuits are used in homes

In groups, learners are guided to:
- Arrange two dry cells in parallel (like terminals connected) and connect to two bulbs in parallel
- Close the circuit and observe that both bulbs light up
- Remove one bulb and observe that the other bulb remains lit; discuss why

How does a parallel circuit behave when one component is removed?

- Spotlight Integrated Science pg. 177
- Two dry cells, two bulbs, two bulb holders, switch, connecting wires
- Safety guidelines
- Spotlight Integrated Science pg. 178
- Completed circuit diagrams
- Reference books

- Practical work - Observation - Written assignments

Force and Energy

Electrical Energy - Identifying common electrical appliances

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

- Identify common electrical appliances used at home, in salons, and in schools
- State the function of each identified electrical appliance
- Show interest in how electrical appliances make daily life easier

In groups, learners are guided to:
- Study pictures of electrical appliances (refrigerator, washing machine, electric blender, fan, kettle, blow dryer, pressure cooker, iron box, electric lamp, oven, air conditioner, electric guitar) and identify each
- Discuss the electrical appliances used in salons, barber shops, places of worship, markets, and schools
- In groups, compose a song about electrical appliances and sing to classmates

What are the common electrical appliances used in day-to-day life?

- Spotlight Integrated Science pg. 181
- Pictures of electrical appliances (charts)
- Reference books

- Oral questions - Observation

Force and Energy

Electrical Energy - Uses and energy conversion of electrical appliances

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

- Explain the use of each common electrical appliance and the energy conversion it performs
- Match electrical appliances to their functions in a table
- Appreciate how a wide range of electrical appliances improve quality of life

In groups, learners are guided to:
- Copy and complete a table matching electrical appliances to their uses (electric cooker for cooking, iron box for ironing, oven for baking, refrigerator for preserving food, electric lamp for lighting, blow dryer for drying hair, television for watching, fan for cooling, electric speaker for playing music)
- Search for electrical appliances used in hotels, hospitals, shops, and schools
- Share findings with classmates for peer assessment

How do electrical appliances convert electrical energy to other forms of energy?

- Spotlight Integrated Science pg. 182
- Appliances table
- Internet access

- Written assignments - Oral questions

Force and Energy

Electrical Energy - Safety measures when using electrical appliances

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

- Identify safety measures to observe when handling electrical appliances
- Explain the danger posed by ignoring electrical safety rules
- Show responsibility when handling electrical appliances at home and at school

In groups, learners are guided to:
- Study pictures showing safe and unsafe use of electrical appliances and identify which pictures show safe practices
- Read aloud a poster listing safety measures (do not insert metallic objects into sockets, switch off sockets when not in use, switch off before plugging in, call professionals for repairs)
- Write short notes on safety measures and discuss with classmates

What safety measures should be observed when using electrical appliances?

- Spotlight Integrated Science pg. 184
- Safety posters
- Pictures of safe/unsafe practices

- Oral questions - Checklist

Force and Energy

Electrical Energy - Applying safety measures in practical scenarios

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

- Apply electrical safety knowledge to real-life scenarios involving electrical appliances
- Advise peers on safety measures for specific appliances (electric cooker, iron box, heater, blender)
- Show commitment to observing safety rules at all times

- Discuss each safety rule: do not overload sockets, replace damaged cords, unplug unused appliances, use appliances for correct purpose, do not use with wet hands, unplug when cleaning, always monitor appliances in use
- Advise Grade 7 learners using an electric cooker, iron box, heater, and blender during a practical session on safety measures
- Share with parents/guardians what was learnt about electrical safety at home

How can electrical accidents involving appliances be prevented?

- Spotlight Integrated Science pg. 185
- Scenario cards
- Reference books

- Written assignments - Observation

Force and Energy

Electrical Energy - Uses of electricity in day-to-day life

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

- Identify the various uses of electricity in homes, schools, hotels, markets, and places of worship
- Explain how electricity has improved quality of life in communities
- Appreciate electricity as an essential form of energy in daily life

In groups, learners are guided to:
- Study pictures showing various uses of electricity (cooking, ironing, boiling water, lighting, playing music, preserving food, washing clothes, warming food, baking) and identify uses shown
- Share how family members use electricity at home
- Discuss uses of electricity in schools, hotels, markets, places of worship, and roads

How is electricity used in day-to-day life?

- Spotlight Integrated Science pg. 187
- Pictures showing uses of electricity
- Reference books

- Oral questions - Written assignments

Force and Energy

Electrical Energy - Uses of electricity in day-to-day life

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

- Identify the various uses of electricity in homes, schools, hotels, markets, and places of worship
- Explain how electricity has improved quality of life in communities
- Appreciate electricity as an essential form of energy in daily life

In groups, learners are guided to:
- Study pictures showing various uses of electricity (cooking, ironing, boiling water, lighting, playing music, preserving food, washing clothes, warming food, baking) and identify uses shown
- Share how family members use electricity at home
- Discuss uses of electricity in schools, hotels, markets, places of worship, and roads

How is electricity used in day-to-day life?

- Spotlight Integrated Science pg. 187
- Pictures showing uses of electricity
- Reference books

- Oral questions - Written assignments

Force and Energy

Electrical Energy - Summarising uses of electrical appliances

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

- Summarise the uses of specific electrical appliances in a table
- Organise a class debate on the importance of electricity in daily life
- Show confidence in discussing and defending the role of electricity in the community

- Remind learners of electrical appliances studied earlier and list them
- Copy and complete a table summarising electrical appliances and their uses
- Organise and participate in a class debate on the motion: 'Electricity plays an important role in our day-to-day life'; take notes on points raised

In what ways does electricity play an important role in our day-to-day life?

- Spotlight Integrated Science pg. 188
- Table of uses
- Reference books

- Oral questions - Written assignments

Force and Energy

Electrical Energy - Review and assessment

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

- Recall and explain all key concepts in Electrical Energy (sources, circuits, appliances, safety, uses)
- Complete an assessment task on sub-strand 4.1 accurately
- Show a positive and confident attitude toward assessment

In groups, learners are guided to:
- Answer review questions: name seven sources of electricity; draw a simple electrical circuit; identify circuit connections; name ten electrical appliances; explain six ways people in a community can use electricity
- Complete a self-assessment table ticking level of confidence for each outcome
- Teacher provides feedback on class performance

How well do learners understand Electrical Energy?

- Spotlight Integrated Science pg. 189
- Assessment papers
- Self-assessment table

- Written test - Oral questions - Assessment rubric

Force and Energy

Magnetism - Introduction to magnets and types

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

- Define a magnet and magnetism
- Identify common types of magnets (bar magnet, horseshoe magnet, ring magnet, U-shaped magnet)
- Show curiosity about the nature and properties of magnets

In groups, learners are guided to:
- Discuss the meaning of a magnet (a piece of metal that exerts physical force attracting some objects) and magnetism (force exerted by magnets when they attract or repel each other)
- Study pictures of types of magnets and identify bar magnet, horseshoe magnet, ring magnet, and U-shaped magnet
- Use print or digital media to search for information on magnetism and types of magnets

What is a magnet and what types of magnets are there?

- Spotlight Integrated Science pg. 192
- Bar magnet, horseshoe magnet, ring magnet
- Reference books

- Oral questions - Observation

Force and Energy

Magnetism - Introduction to magnets and types

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

- Define a magnet and magnetism
- Identify common types of magnets (bar magnet, horseshoe magnet, ring magnet, U-shaped magnet)
- Show curiosity about the nature and properties of magnets

In groups, learners are guided to:
- Discuss the meaning of a magnet (a piece of metal that exerts physical force attracting some objects) and magnetism (force exerted by magnets when they attract or repel each other)
- Study pictures of types of magnets and identify bar magnet, horseshoe magnet, ring magnet, and U-shaped magnet
- Use print or digital media to search for information on magnetism and types of magnets

What is a magnet and what types of magnets are there?

- Spotlight Integrated Science pg. 192
- Bar magnet, horseshoe magnet, ring magnet
- Reference books

- Oral questions - Observation

Force and Energy

Magnetism - Attractive property of a magnet

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

- Demonstrate the attractive property of a magnet using a practical activity
- Explain what it means for a magnet to attract an object
- Show interest in observing and recording scientific observations accurately

In groups, learners are guided to:
- Spread paper on a flat surface; place small nails on paper; bring a magnet close to nails and observe
- Record observations (magnet attracts nails) and discuss with classmates
- Explain the meaning of the attractive property based on the practical activity

What happens when a magnet is brought close to small nails?

- Spotlight Integrated Science pg. 193
- Magnet (any type), paper, small nails
- Exercise books

- Practical work - Observation - Checklist

Force and Energy

Magnetism - Repulsive property of a magnet

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

- Demonstrate the repulsive property of a magnet using two bar magnets
- Explain what happens when like poles are brought together
- Show accuracy in recording observations from a practical activity

In groups, learners are guided to:
- Suspend a bar magnet on a wooden stand using a string
- Bring the north pole of a second bar magnet toward the north pole of the suspended magnet and observe repulsion
- Bring the south pole toward the south pole and observe repulsion; record and discuss observations

What happens when like poles of two magnets are brought together?

- Spotlight Integrated Science pg. 194
- Two bar magnets, string, wooden stand
- Exercise books

- Practical work - Observation

Force and Energy

Magnetism - Polarity and magnetic strength

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

- Demonstrate polarity and magnetic strength as properties of a magnet using iron filings
- Explain why iron filings cluster more strongly at the poles
- Show precision when conducting and recording a practical activity

In groups, learners are guided to:
- Place a bar magnet on a working table and cover it with plain paper
- Slowly sprinkle iron filings on the paper and observe that filings cluster at the ends (poles)
- Discuss polarity (the two poles: north and south) and explain why magnetic strength is greatest at the poles

Where is the magnetic strength of a magnet greatest and why?

- Spotlight Integrated Science pg. 195
- Bar magnet, plain paper, iron filings
- Working table

- Practical work - Observation - Written assignments

Force and Energy

Magnetism - Polarity and magnetic strength

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

- Demonstrate polarity and magnetic strength as properties of a magnet using iron filings
- Explain why iron filings cluster more strongly at the poles
- Show precision when conducting and recording a practical activity

In groups, learners are guided to:
- Place a bar magnet on a working table and cover it with plain paper
- Slowly sprinkle iron filings on the paper and observe that filings cluster at the ends (poles)
- Discuss polarity (the two poles: north and south) and explain why magnetic strength is greatest at the poles

Where is the magnetic strength of a magnet greatest and why?

- Spotlight Integrated Science pg. 195
- Bar magnet, plain paper, iron filings
- Working table

- Practical work - Observation - Written assignments

Force and Energy

Magnetism - Directional property of a magnet

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

- Demonstrate the directional property of a freely suspended magnet
- Explain why a suspended magnet always aligns north–south
- Appreciate the application of the directional property in compass navigation

In groups, learners are guided to:
- Suspend a bar magnet on a wooden stand using a thick string
- Flip the magnet to make it rotate, then wait for it to come to rest
- Use an earth's compass to confirm that the north pole faces geographic north and south pole faces geographic south; discuss use in compasses

Why does a freely suspended magnet always point in the north–south direction?

- Spotlight Integrated Science pg. 196
- Bar magnet, thick string, wooden stand, compass
- Exercise books

- Practical work - Observation - Oral questions

Force and Energy

Magnetism - Basic law of magnetism

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

- State the basic law of magnetism (like poles repel; unlike poles attract)
- Demonstrate the law by investigating the force between different poles of two bar magnets
- Show appreciation for the role of laws in organising scientific knowledge

In groups, learners are guided to:
- Suspend one bar magnet on a stand; bring the north pole of a second magnet toward the suspended magnet's north, south, and then the opposite poles
- Record whether attraction or repulsion occurs each time
- State the basic law: like poles repel, unlike poles attract; relate to compass needle behaviour

What is the basic law of magnetism?

- Spotlight Integrated Science pg. 197
- Two bar magnets, thick string, wooden stand
- Exercise books

- Practical work - Oral questions

Force and Energy

Magnetism - Classifying materials as magnetic or non-magnetic

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

- Classify a range of materials as magnetic or non-magnetic using a permanent magnet
- Give examples of magnetic materials (iron, steel, cobalt, nickel) and non-magnetic materials (wood, plastic, paper, copper, aluminium, glass, brass)
- Show curiosity about why certain materials are attracted to magnets

In groups, learners are guided to:
- Suspend a bar magnet on a wooden stand; test each material (nail, aluminium foil, sewing needle, copper wire, leaf, wooden stick, piece of paper, plastic ruler, staple pin, razor blade, glass rod, fork, rubber) by bringing it near the magnet
- Record observations in a table: attracted/not attracted
- Study pictures of materials and group them as magnetic or non-magnetic

How can materials be classified as magnetic or non-magnetic?

- Spotlight Integrated Science pg. 198
- Bar magnet, wooden stand, assorted materials (nail, aluminium foil, needle, copper wire, leaf, wooden stick, paper, plastic ruler, staple pin, razor blade, glass rod, fork, rubber)
- Results table

- Practical work - Observation - Checklist

Force and Energy

Magnetism - Properties and socio-economic value of magnetic materials

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

- Explain why magnetic materials are attracted to magnets while non-magnetic materials are not
- Relate the magnetic properties of materials to their cost and socio-economic value
- Show critical thinking when linking material properties to real-life uses

In groups, learners are guided to:
- Discuss why iron, steel, cobalt, and nickel are magnetic while copper, aluminium, wood, plastic, and glass are not
- Explore the socio-economic value of magnetic materials (e.g. metal recycling, magnetic screwdrivers, cost of different metals)
- List materials found in the locality and use digital or print media to determine whether they are magnetic or non-magnetic

Why are some materials magnetic and others not, and what is the economic significance?

- Spotlight Integrated Science pg. 199
- Reference books
- Internet access

- Oral questions - Written assignments

Force and Energy

Magnetism - Properties and socio-economic value of magnetic materials

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

- Explain why magnetic materials are attracted to magnets while non-magnetic materials are not
- Relate the magnetic properties of materials to their cost and socio-economic value
- Show critical thinking when linking material properties to real-life uses

In groups, learners are guided to:
- Discuss why iron, steel, cobalt, and nickel are magnetic while copper, aluminium, wood, plastic, and glass are not
- Explore the socio-economic value of magnetic materials (e.g. metal recycling, magnetic screwdrivers, cost of different metals)
- List materials found in the locality and use digital or print media to determine whether they are magnetic or non-magnetic

Why are some materials magnetic and others not, and what is the economic significance?

- Spotlight Integrated Science pg. 199
- Reference books
- Internet access

- Oral questions - Written assignments

Force and Energy

Magnetism - Uses of magnets in day-to-day life

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

- Identify uses of magnets in day-to-day life (door bells, bicycle dynamos, electric motors, separation of mixtures, memory storage, magnetic compass, toys, bag closures)
- Explain how each use relates to the properties of magnets
- Show interest in the widespread use of magnets in everyday objects

In groups, learners are guided to:
- Study photographs showing various uses of magnets in daily life and discuss each use
- Read a dialogue discussing uses of magnets in door bells, bicycle dynamos, electric motors, separation of mixtures, and computer memory storage
- Write a composition on uses of magnets in day-to-day life and share with classmates

How are magnets used in day-to-day life?

- Spotlight Integrated Science pg. 200
- Pictures of magnetic applications
- Reference books

- Oral questions - Written assignments

Force and Energy

Magnetism - Uses of magnets: devices and personal applications

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

- Describe specific everyday uses of magnets (refrigerator door seals, speakers, radio tuners, magnetic screwdrivers, magnetic toys, bag magnetic snap buttons)
- Explain how the magnetic property enables each specific use
- Appreciate the range of ways magnets are applied in personal and household items

- Read flash cards from Grade 7 learners describing personal uses of magnets (magnetic bag closure, magnetic toys, magnetic screwdriver, magnetic compass)
- Discuss how refrigerator doors use magnets to shut tight, speakers use magnets to produce sound, and radio tuners use magnets
- Discuss uses of magnets in bicycle dynamos for lighting bicycle lamps

Which household items use magnets and how do the magnets make them work?

- Spotlight Integrated Science pg. 201
- Flash cards
- Reference books

- Oral questions - Observation

Force and Energy

Magnetism - Uses of magnets: devices and personal applications

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

- Describe specific everyday uses of magnets (refrigerator door seals, speakers, radio tuners, magnetic screwdrivers, magnetic toys, bag magnetic snap buttons)
- Explain how the magnetic property enables each specific use
- Appreciate the range of ways magnets are applied in personal and household items

- Read flash cards from Grade 7 learners describing personal uses of magnets (magnetic bag closure, magnetic toys, magnetic screwdriver, magnetic compass)
- Discuss how refrigerator doors use magnets to shut tight, speakers use magnets to produce sound, and radio tuners use magnets
- Discuss uses of magnets in bicycle dynamos for lighting bicycle lamps

Which household items use magnets and how do the magnets make them work?

- Spotlight Integrated Science pg. 201
- Flash cards
- Reference books

- Oral questions - Observation

Force and Energy

Magnetism - Applications of magnets in industry and technology

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

- Describe the applications of magnets in industry, medicine, and technology
- Explain how magnets are used for separation of mixtures, magnetic compass, and computer memory storage
- Show appreciation for the wide impact of magnets in modern industry and technology

In groups, learners are guided to:
- Discuss applications of magnets: separation of mixtures where one component is magnetic; magnetic compass needle aligned to earth's magnetic field; small magnets in computers for memory storage
- Explain how magnets in toys make parts stick together
- Use digital or print media to search for more industrial and technological applications of magnets

How are magnets applied in industry, medicine, and technology?

- Spotlight Integrated Science pg. 202
- Reference books
- Internet access

- Oral questions - Written assignments

Force and Energy

Magnetism - Applications of magnets in transport and communication

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

- Describe applications of magnets in transport (magnetic levitation trains) and communication (radios, speakers, earphones)
- Explain the role of magnets in bicycle dynamos and electric motors
- Show interest in how the study of magnetism has enabled modern technology

In groups, learners are guided to:
- Discuss how magnets are used in bicycle dynamos (magnet moves in coil of wire to produce electricity for bicycle lamps)
- Discuss applications in electric motors, generators, door bells, earphones, and radios
- Compile a list of magnet-powered devices and present to classmates

How do magnets enable transport and communication technologies to work?

- Spotlight Integrated Science pg. 203
- Reference books
- Internet access

- Oral questions - Written assignments

Force and Energy

Magnetism - Review and consolidation of magnetism

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

- Recall and explain all key concepts on magnetism (properties, classification of materials, uses, applications)
- Answer varied questions on magnetism accurately
- Show confidence when discussing topics in magnetism

In groups, learners are guided to:
- Answer review questions: name magnetic materials; describe an experiment to distinguish a metal from a magnet; explain why iron filings cluster at the poles of a magnet; write steps to demonstrate directional property; identify poles of magnets given repulsion/attraction information
- Peer-check answers and discuss corrections with teacher guidance

What are the key concepts about magnetism?

- Spotlight Integrated Science pg. 204
- Review question sets
- Exercise books

- Written test - Oral questions

Force and Energy

Magnetism - Review and consolidation of magnetism

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

- Recall and explain all key concepts on magnetism (properties, classification of materials, uses, applications)
- Answer varied questions on magnetism accurately
- Show confidence when discussing topics in magnetism

In groups, learners are guided to:
- Answer review questions: name magnetic materials; describe an experiment to distinguish a metal from a magnet; explain why iron filings cluster at the poles of a magnet; write steps to demonstrate directional property; identify poles of magnets given repulsion/attraction information
- Peer-check answers and discuss corrections with teacher guidance

What are the key concepts about magnetism?

- Spotlight Integrated Science pg. 204
- Review question sets
- Exercise books

- Written test - Oral questions

Force and Energy

Magnetism - Assessment and Strand 4 review

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

- Demonstrate mastery of all Strand 4 topics including Electrical Energy and Magnetism
- Complete a self-assessment of confidence for each sub-strand outcome
- Show a positive and reflective attitude toward the completion of Strand 4

In groups, learners are guided to:
- Complete a written assessment covering all topics in sub-strand 4.2 and Strand 4 overall
- Copy and complete the self-assessment table ticking confidence level for each outcome (demonstrating properties of a magnet; classifying magnetic/non-magnetic materials; identifying uses of magnets; explaining applications of magnets)
- Teacher provides summative feedback on strand performance

How well do learners understand Magnetism and Strand 4 overall?

- Spotlight Integrated Science pg. 205
- Assessment papers
- Self-assessment table

- Written test - Assessment rubric - Oral questions