Mixtures, Elements and Compounds

Elements and Compounds - Distinguishing between an element and a compound

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

- Define the terms element and compound
- Differentiate between elements and compounds using diagrams
- Relate elements and compounds to substances used at home such as table salt and water

- Discuss the meaning of elements and compounds
- Use digital or print media to search for information on differences between elements and compounds
- Study diagrams representing elements and compounds and identify which is which

What makes an element different from a compound?

- Spotlight Integrated Science Learner's Book pg. 34
- Digital resources
- Charts showing elements and compounds
- Sample labelled containers
- Digital resources

- Oral questions - Observation - Written assignments

Mixtures, Elements and Compounds

Elements and Compounds - Rules for assigning symbols to elements
Elements and Compounds - Symbols derived from English names
Elements and Compounds - Symbols derived from Latin names
Elements and Compounds - Uses of elements in jewellery and construction
Elements and Compounds - Uses of elements in industry and medicine

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

- State the rules for assigning symbols to elements
- Write symbols of elements derived from English names
- Recognise element symbols on food packaging and medicine labels

- Discuss rules for assigning symbols to elements
- Play a fun activity to understand how symbols are derived
- Use reference materials to search for information on symbols of elements

How are chemical symbols of elements derived?

- Spotlight Integrated Science Learner's Book pg. 36
- Periodic table
- Reference books
- Spotlight Integrated Science Learner's Book pg. 38
- Charts showing element symbols
- Reference materials
- Spotlight Integrated Science Learner's Book pg. 39
- Pictures of jewellery items
- Digital resources
- Spotlight Integrated Science Learner's Book pg. 40
- Samples of items containing elements

- Oral questions - Written assignments - Group presentations

Mixtures, Elements and Compounds

Elements and Compounds - Elements as food nutrients and mineral elements
Elements and Compounds - Market value of common elements
Elements and Compounds - Reading packaging labels on commonly consumed products

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

- Identify elements present in food nutrients
- Explain the role of mineral elements in plant nutrition
- Connect elements in proteins and carbohydrates to foods eaten daily

- Discuss elements in proteins (carbon, hydrogen, nitrogen, oxygen)
- Discuss elements in carbohydrates and lipids
- Discuss mineral elements (N, P, K) as plant nutrients
- Discuss uses of water in day-to-day life

Which elements make up the proteins we eat?

- Spotlight Integrated Science Learner's Book pg. 40
- Food packaging labels
- Fertiliser packaging
- Spotlight Integrated Science Learner's Book pg. 41
- Pictures of medals
- Price lists of jewellery items
- Spotlight Integrated Science Learner's Book pg. 44
- Various product containers
- Food and medicine packaging

- Oral questions - Written assignments - Observation

Mixtures, Elements and Compounds

Elements and Compounds - Importance of packaging label information
Elements and Compounds - Structure of an atom

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

- Explain the importance of information on packaging labels
- Discuss consumer rights to information
- Make informed choices when purchasing household products

- Discuss the importance of information provided in packaging labels
- Discuss consumer rights to accurate product information
- Share findings about product ingredients with classmates

How does packaging information help consumers make safe choices?

- Spotlight Integrated Science Learner's Book pg. 44
- Various product containers
- Digital resources
- Spotlight Integrated Science Learner's Book pg. 47
- Charts showing atomic structure

- Oral questions - Written tests - Group presentations

Mixtures, Elements and Compounds

Elements and Compounds - Sub-atomic particles
Elements and Compounds - Electron arrangement of elements
Elements and Compounds - Drawing electron arrangement diagrams

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

- Identify the sub-atomic particles in an atom
- State the location and charges of protons, neutrons and electrons
- Understand why atoms are electrically neutral like everyday objects

- Discuss the composition of the nucleus (protons and neutrons)
- Discuss electrons and energy levels
- Study Table 1.16 showing sub-atomic particles, their symbols, charges and location

Why is an atom electrically neutral?

- Spotlight Integrated Science Learner's Book pg. 48
- Charts showing atomic structure
- Models of atoms
- Spotlight Integrated Science Learner's Book pg. 49
- Charts showing electron arrangement
- Digital resources
- Spotlight Integrated Science Learner's Book pg. 50
- Drawing materials

- Oral questions - Written tests - Observation

Mixtures, Elements and Compounds

Elements and Compounds - Atomic number and mass number of elements
Elements and Compounds - Illustrating atomic number and mass number

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

- Define atomic number and mass number
- Calculate mass number from protons and neutrons
- Use atomic numbers to identify elements like a unique fingerprint

- Study Table 1.18 showing atomic number and mass number
- Discuss relationship between protons and atomic number
- Discuss relationship between sum of protons and neutrons to mass number

What is the difference between atomic number and mass number?

- Spotlight Integrated Science Learner's Book pg. 53
- Periodic table
- Reference materials
- Spotlight Integrated Science Learner's Book pg. 54
- Writing materials

- Oral questions - Calculations - Written tests

Mixtures, Elements and Compounds

Elements and Compounds - Classifying elements as metals and non-metals
Physical and Chemical Changes - Properties of solids
Physical and Chemical Changes - Density of solids

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

- Classify elements into metals and non-metals based on electron arrangement
- Identify characteristics of metals and non-metals
- Recognise metals in coins and non-metals in air we breathe

- Complete Table 1.22 showing electron arrangement and classification
- Discuss that metals have 1, 2 or 3 electrons in outermost energy level
- Discuss that non-metals have 4, 5, 6, 7 or 8 electrons in outermost level
- Discuss importance of different elements in day-to-day life

How can electron arrangement help us classify elements?

- Spotlight Integrated Science Learner's Book pg. 56
- Periodic table
- Reference materials
- Spotlight Integrated Science Learner's Book pg. 1
- Small stone, string, measuring cylinder
- Water
- Spotlight Integrated Science Learner's Book pg. 3
- Wooden blocks, ruler
- Weighing machine

- Oral questions - Written tests - Classification exercises

Mixtures, Elements and Compounds

Physical and Chemical Changes - Density of irregularly shaped solids
Physical and Chemical Changes - Shape and flow of solids

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

- Determine the volume of irregularly shaped solids by displacement method
- Calculate density of irregularly shaped solids
- Apply displacement method to find volume of items like fruits and stones

- Use Eureka can to determine volume of irregular solids
- Weigh the stone and calculate its density
- Discuss that solids have highest density compared to liquids and gases

How do you find the volume of an irregularly shaped object?

- Spotlight Integrated Science Learner's Book pg. 4
- Eureka can, stone, string
- Measuring cylinder, weighing machine
- Spotlight Integrated Science Learner's Book pg. 5
- Book, stone, pen, pencil
- Carton boxes, buckets

- Practical assessment - Calculations - Oral questions

Mixtures, Elements and Compounds

Physical and Chemical Changes - Compressibility of solids
Physical and Chemical Changes - Properties of liquids (density and volume)
Physical and Chemical Changes - Shape, flow and compressibility of liquids

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

- Demonstrate that solids are not easily compressed
- Explain why solids are not compressible
- Relate incompressibility of solids to hydraulic systems in vehicles

- Use syringe filled with sand to test compressibility
- Compare pressing plunger with empty barrel versus filled with sand
- Discuss that particles in solids are closely packed

Why can't we compress a solid easily?

- Spotlight Integrated Science Learner's Book pg. 6
- Syringe, sand
- Rubber cork
- Spotlight Integrated Science Learner's Book pg. 8
- Beaker, measuring cylinder
- Volumetric flask, water
- Spotlight Integrated Science Learner's Book pg. 10
- Beaker, conical flask
- Syringe, water

- Practical assessment - Oral questions - Observation

Mixtures, Elements and Compounds

Physical and Chemical Changes - Properties of gases
Physical and Chemical Changes - Comparing properties of solids, liquids and gases

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

- Demonstrate that gases have no definite shape or volume
- Show that gases can flow and are easily compressible
- Relate gas properties to inflating balloons and tyres

- Inflate balloons of different shapes
- Use gas jars to show gases can flow
- Use syringe to demonstrate compressibility of gases

Why do gases fill the entire container they occupy?

- Spotlight Integrated Science Learner's Book pg. 12
- Balloons, gas jars
- Syringe, string
- Spotlight Integrated Science Learner's Book pg. 15
- Digital resources
- Reference materials

- Practical assessment - Oral questions - Written assignments

Mixtures, Elements and Compounds

Physical and Chemical Changes - Demonstrating diffusion in liquids
Physical and Chemical Changes - Distinguishing temporary and permanent changes

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

- Define the term diffusion
- Demonstrate diffusion using potassium manganate (VII) and water
- Relate diffusion to how tea colour spreads in hot water

- Set up apparatus with straw, beaker and potassium manganate (VII) crystal
- Observe the purple colour spreading through water
- Discuss that diffusion is movement from high to low concentration

How does diffusion occur in liquids?

- Spotlight Integrated Science Learner's Book pg. 16
- Beaker, straw
- Potassium manganate (VII), water
- Spotlight Integrated Science Learner's Book pg. 18
- Pictures of changes in substances
- Reference materials

- Practical assessment - Observation - Oral questions

Mixtures, Elements and Compounds

Physical and Chemical Changes - Temporary changes in water and candle wax
Physical and Chemical Changes - Temporary changes in zinc oxide and iodine
Physical and Chemical Changes - Temporary chemical changes in copper (II) sulphate

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

- Demonstrate temporary changes by heating water and candle wax
- Explain why these changes are reversible
- Connect temporary changes to everyday processes like boiling water for cooking

- Heat water in a conical flask and observe
- Heat candle wax in a test tube and allow to cool
- Record observations in Table 1.5

Why is melting candle wax a temporary change?

- Spotlight Integrated Science Learner's Book pg. 20
- Conical flask, test tubes
- Water, candle wax, heat source
- Test tubes, boiling tube
- Zinc oxide, iodine, heat source
- Spotlight Integrated Science Learner's Book pg. 22
- Boiling tubes, delivery tube
- Copper (II) sulphate, heat source

- Practical assessment - Oral questions - Written tests

Mixtures, Elements and Compounds

Physical and Chemical Changes - Temporary chemical changes in cobalt (II) chloride
Physical and Chemical Changes - Permanent changes in potassium manganate (VII)

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

- Demonstrate temporary chemical change using hydrated cobalt (II) chloride
- Observe colour change from pink to blue on heating
- Use cobalt chloride paper to test for moisture in weather forecasting

- Heat cobalt (II) chloride crystals
- Observe colour change from pink to blue
- Add water to anhydrous cobalt (II) chloride and observe colour change back to pink

Why does cobalt (II) chloride change colour when heated?

- Spotlight Integrated Science Learner's Book pg. 24
- Boiling tubes
- Cobalt (II) chloride, heat source
- Spotlight Integrated Science Learner's Book pg. 26
- Boiling tube, test tube holder
- Potassium manganate (VII), wooden splints

- Practical assessment - Observation - Written assignments

Mixtures, Elements and Compounds

Physical and Chemical Changes - Permanent changes in copper (II) nitrate
Physical and Chemical Changes - Applications in making candles and ice
Physical and Chemical Changes - Applications in food preservation and ice cream making

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

- Demonstrate permanent change by heating copper (II) nitrate
- Identify products formed from the reaction
- Understand irreversible reactions in manufacturing processes

- Heat copper (II) nitrate in a boiling tube (in fume chamber)
- Observe formation of black solid and brown gas
- Write word equation for the reaction

What makes the change in copper (II) nitrate permanent?

- Spotlight Integrated Science Learner's Book pg. 27
- Boiling tubes, test tube holder
- Copper (II) nitrate, heat source
- Spotlight Integrated Science Learner's Book pg. 28
- Used candles, sufuria
- Glass tumbler, wick
- Spotlight Integrated Science Learner's Book pg. 31
- Pictures of refrigerator, ice cream
- Digital resources

- Practical assessment - Observation - Written assignments

Mixtures, Elements and Compounds

Physical and Chemical Changes - Other applications of change of state
Physical and Chemical Changes - Characteristics of particles in three states

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

- Explain use of mothballs and gel air fresheners
- Describe applications in drying clothes and melting snow on roads
- Connect sublimation to disappearance of mothballs in wardrobes

- Discuss how mothballs change from solid to gas (sublimation)
- Discuss how gel air fresheners work
- Discuss how salt is used to melt snow on roads
- Design placard with information on change of state of matter

What other applications of change of state exist in daily life?

- Spotlight Integrated Science Learner's Book pg. 31
- Mothballs, air freshener
- Manila paper, markers
- Spotlight Integrated Science Learner's Book pg. 1
- Ink, water, beaker
- Digital resources

- Oral questions - Written tests - Project work

Mixtures, Elements and Compounds

Physical and Chemical Changes - Determining boiling and melting points
Classes of Fire - Fire triangle components
Classes of Fire - Role of oxygen in combustion

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

- Describe the heating curve
- Explain effects of impurities on boiling and melting points
- Relate addition of salt to water when cooking to lowering boiling time

- Carry out experiments to determine boiling and melting points of pure substances
- Draw the heating curve and discuss the trends
- Discuss that impurities raise boiling point and lower melting point

How do impurities affect boiling and melting points?

- Spotlight Integrated Science Learner's Book pg. 1
- Thermometer, beaker
- Heat source, pure and impure substances
- Spotlight Integrated Science Learner's Book pg. 69
- Charts showing fire triangle
- Digital resources
- Candles, gas jar
- Open-ended glass jar, lighter

- Practical assessment - Oral questions - Written tests

Mixtures, Elements and Compounds

Classes of Fire - Role of oxygen in spread of fire
Classes of Fire - Class A fires

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

- Explain how oxygen supports spread of fire
- Describe conditions necessary for fire to continue burning
- Apply understanding to forest fire prevention and management

- Study pictures of fire in the forest
- Discuss how fire spreads from one point to another
- Discuss the fire triangle and continuous combustion

How does oxygen contribute to the spread of fire?

- Spotlight Integrated Science Learner's Book pg. 70
- Pictures of forest fire
- Charts showing fire spread
- Spotlight Integrated Science Learner's Book pg. 71
- Charts showing classes of fire
- Digital resources

- Oral questions - Written assignments - Group discussions

Mixtures, Elements and Compounds

Classes of Fire - Class B fires
Classes of Fire - Class C and D fires

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

- Identify Class B fires and their causes
- Describe flammable liquids and gases that cause Class B fires
- Exercise caution when handling petrol and cooking gas at home

- Discuss Class B fires involving flammable liquids and gases
- Identify materials such as petrol, diesel, kerosene, alcohol, paint, methane and LPG
- Discuss places where Class B fires are likely to occur

What flammable materials cause Class B fires?

- Spotlight Integrated Science Learner's Book pg. 73
- Charts showing classes of fire
- Pictures of flammable materials
- Pictures of electrical appliances

- Oral questions - Written tests - Group discussions

Mixtures, Elements and Compounds

Classes of Fire - Class K fires
Classes of Fire - Control measures for Class A fires
Classes of Fire - Control measures for Class B fires

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

- Identify Class K fires and their causes
- Describe kitchen fire hazards involving cooking oil
- Practice safe cooking methods to prevent kitchen fires

- Discuss Class K fires involving cooking fat, grease and cooking oil
- Read and discuss the scenario about Mary's cooking accident
- Discuss why water should not be used on Class K fires

Why are cooking oil fires dangerous?

- Spotlight Integrated Science Learner's Book pg. 72
- Charts showing classes of fire
- Pictures of kitchen fires
- Spotlight Integrated Science Learner's Book pg. 73
- Fire blanket
- Water, fire bucket
- Fire extinguisher (for demonstration)
- Charts showing fire control

- Oral questions - Written tests - Group discussions

Mixtures, Elements and Compounds

Classes of Fire - Control measures for Class C and D fires
Classes of Fire - Control measures for Class K fires

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

- Describe control measures for Class C and D fires
- Explain importance of switching off electricity before fighting electrical fires
- Use appropriate fire extinguishers for different fire types

- Discuss switching off electricity supply for Class C fires
- Discuss use of dry powder extinguisher or CO₂ extinguisher
- Discuss use of dry powder extinguisher and sand for Class D fires

What is the first step when controlling electrical fires?

- Spotlight Integrated Science Learner's Book pg. 73
- Fire extinguisher (for demonstration)
- Fire bucket with sand
- Charts showing fire control
- Pictures of kitchen safety

- Oral questions - Written tests - Practical assessment

Mixtures, Elements and Compounds

Classes of Fire - Breaking the fire triangle
Classes of Fire - Practicing fire control measures
Classes of Fire - Dangers of fires in nature

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

- Explain how to break the fire triangle to control fire
- Describe methods of removing heat, oxygen or fuel
- Apply fire triangle knowledge to emergency situations

- Discuss how to remove heat using water
- Discuss how to remove oxygen by smothering with sand or blanket
- Discuss how to remove fuel by creating fire breaks

How does breaking the fire triangle help control fire?

- Spotlight Integrated Science Learner's Book pg. 71
- Charts showing fire triangle
- Sand, blanket, water
- Spotlight Integrated Science Learner's Book pg. 74
- Fire extinguisher, fire blanket
- Sand bucket, water
- Pictures of fire damage
- Digital resources

- Oral questions - Written tests - Observation

Mixtures, Elements and Compounds

Classes of Fire - Rights to safety information on flammable substances
Classes of Fire - Creating awareness on flammable substances

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

- Identify warning signs for flammable substances
- Explain consumer rights to safety information
- Read and follow safety warnings on household chemicals

- Study pictures showing warning signs on flammable substances
- Discuss why warning signs are displayed publicly
- Identify the flammable symbol on chemical containers

Why are warning signs important on flammable substances?

- Spotlight Integrated Science Learner's Book pg. 76
- Chemical containers with labels
- Pictures of warning signs
- Spotlight Integrated Science Learner's Book pg. 77
- Manila paper, markers
- Coloured pencils

- Oral questions - Written tests - Observation

Mixtures, Elements and Compounds

Classes of Fire - Oxygen in respiration and medicine
Classes of Fire - Oxygen in combustion and industry

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

- Explain the role of oxygen in respiration
- Describe uses of oxygen in hospitals
- Connect breathing to the need for oxygen in our bodies

- Discuss oxygen requirement for respiration in living things
- Discuss use of oxygen therapy in hospitals
- Discuss oxygen use by mountain climbers and scuba divers

Why is oxygen essential for living things?

- Spotlight Integrated Science Learner's Book pg. 78
- Pictures of oxygen use
- Digital resources
- Spotlight Integrated Science Learner's Book pg. 79
- Pictures of welding, engines

- Oral questions - Written assignments - Group discussions

Mixtures, Elements and Compounds
Living Things and their Environment
Living Things and their Environment

Classes of Fire - Preparing oxygen using hydrogen peroxide
Classes of Fire - Physical and chemical properties of oxygen
The Cell - The light microscope
The Cell - Functions of microscope parts

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

- Describe the laboratory preparation of oxygen using hydrogen peroxide
- Explain the role of manganese (IV) oxide as a catalyst
- Understand how catalysts speed up reactions in everyday products

- Set up apparatus for preparing oxygen
- Add hydrogen peroxide drop-wise to manganese (IV) oxide
- Collect oxygen gas over water

How is oxygen prepared in the laboratory?

- Spotlight Integrated Science Learner's Book pg. 62
- Flat-bottomed flask, delivery tube
- Hydrogen peroxide, manganese (IV) oxide
- Spotlight Integrated Science Learner's Book pg. 65
- Gas jars of oxygen
- Wooden splints, elements (sodium, magnesium)
- Spotlight Integrated Science Learner's Book Grade 8 pg. 82
- Light microscope
- Charts showing parts of a microscope
- Digital devices
- Spotlight Integrated Science Learner's Book Grade 8 pg. 84
- Function charts

- Practical assessment - Oral questions - Written tests

Living Things and their Environment

The Cell - Use and care for a light microscope
The Cell - Using the light microscope
The Cell - Preparing plant cell specimens
The Cell - Observing plant cells
The Cell - Components of a plant cell

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

- Demonstrate how to carry a light microscope correctly
- Explain proper cleaning procedures for microscope lenses
- Relate proper microscope care to preserving expensive laboratory equipment

- Practice carrying the microscope with one hand on the arm and another on the base
- Clean lenses using lens paper
- Discuss ways of caring for a light microscope
- Store microscope properly after use

How should we care for a light microscope to ensure its longevity?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 86
- Light microscope
- Lens paper
- Microscope cover
- Spotlight Integrated Science Learner's Book Grade 8 pg. 87
- Transparent paper with writings
- Glass slides
- Spotlight Integrated Science Learner's Book Grade 8 pg. 89
- Onion bulb
- Glass slides and cover slips
- Distilled water
- Forceps, scalpel, mounted needle
- Spotlight Integrated Science Learner's Book Grade 8 pg. 90
- Prepared onion slides
- Iodine solution
- Droppers
- Spotlight Integrated Science Learner's Book Grade 8 pg. 91
- Plant cell charts
- Carton box, manila paper
- Pencil colours
- Scissors, glue

- Practical demonstration - Observation checklist - Oral questions

Living Things and their Environment

The Cell - Observing animal cells
The Cell - Making animal cell models
The Cell - Functions of cell components

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

- Observe animal cells from permanent slides under a light microscope
- Draw and label components of an animal cell
- Relate animal cell study to understanding human body tissues

- Observe permanent slides of animal cells under light microscope
- Identify cell membrane, cytoplasm, and nucleus
- Draw well-labelled diagrams of animal cells
- Compare observations with reference materials

What components make up an animal cell as seen under a light microscope?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 93
- Light microscope
- Permanent slides of animal cells
- Lens paper
- Charts
- Spotlight Integrated Science Learner's Book Grade 8 pg. 94
- Carton box
- Manila papers
- Pencil colours
- Scissors, glue, scalpel
- Spotlight Integrated Science Learner's Book Grade 8 pg. 95
- Digital devices
- Reference books
- Crossword puzzle worksheets

- Drawing assessment - Observation - Written questions

Living Things and their Environment

The Cell - Functions of vacuole and tonoplast
The Cell - Similarities between plant and animal cells
The Cell - Differences between plant and animal cells

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

- Describe the functions of the vacuole and tonoplast
- Explain how the vacuole stores cell sap
- Relate vacuole functions to why fruits are juicy and plants stay upright

- Discuss the role of vacuole in storing cell sap
- Explain how tonoplast regulates movement between vacuole and cytoplasm
- Draw diagrams showing vacuole position in plant cells
- Compare vacuole size in plant and animal cells

Why is the vacuole important in plant cells?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 96
- Plant cell diagrams
- Digital devices
- Reference materials
- Spotlight Integrated Science Learner's Book Grade 8 pg. 97
- Plant and animal cell models
- Comparison charts
- Digital devices
- Spotlight Integrated Science Learner's Book Grade 8 pg. 98
- Reference books

- Oral questions - Written assignments - Diagram labelling

Living Things and their Environment

The Cell - Meaning of magnification
The Cell - Calculating magnification

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

- Define the term magnification
- Explain how microscopes enlarge images of specimens
- Relate magnification to how doctors examine blood samples for malaria

- Study pictures showing original and magnified images
- Discuss the meaning of magnification
- Explain that magnification makes cells appear larger without changing physical size
- Use digital devices to watch videos on magnification

What is magnification and why is it important?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 99
- Magnification pictures
- Digital devices
- Light microscope
- Spotlight Integrated Science Learner's Book Grade 8 pg. 100
- Light microscope
- Exercise books
- Calculators

- Oral questions - Written definition - Observation

Living Things and their Environment

The Cell - Solving magnification problems
The Cell - Uses of light microscope in healthcare

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

- Solve numerical problems on magnification
- Determine objective lens magnification when total magnification is given
- Use problem-solving skills applicable in scientific research

- Calculate magnification power of objective lens given total magnification and eyepiece power
- Work through sample problems as a class
- Complete individual practice problems
- Check answers with peers

How can we determine unknown magnification values?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 100
- Problem worksheets
- Calculators
- Exercise books
- Spotlight Integrated Science Learner's Book Grade 8 pg. 101
- Digital devices
- Reference books
- Healthcare posters

- Written problems - Peer marking - Teacher assessment

Living Things and their Environment

The Cell - Uses of light microscope in research and industry
The Cell - End of sub-strand assessment
Structure of the cell membrane
Properties of the cell membrane

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

- Explain uses of the light microscope in research and industry
- Describe how microscopes are used in forensic science
- Connect microscope applications to career opportunities in science

- Discuss use of microscopes in forensic science and agriculture
- Explain how microscopes help quality control in industries
- Watch videos on various applications of microscopes
- Complete self-assessment on the cell sub-strand

How are light microscopes used in research and industry?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 102
- Digital devices
- Reference materials
- Assessment worksheets
- Spotlight Integrated Science Learner's Book Grade 8 pg. 103
- Assessment papers
- Drawing materials
- Exercise books
- Spotlight Integrated Science Learner's Book Grade 8 pg. 104
- Liquid soap, water, sugar
- Straws, cotton thread
- Shallow tray
- Spotlight Integrated Science Learner's Book Grade 8 pg. 107
- Cell membrane diagrams
- Reference books

- Self-assessment - Written test - Oral questions

Living Things and their Environment

Effects of heat on cell membrane - Potato experiment
Effects of heat on cell membrane - Beetroot experiment
Effects of dilute acids and alkalis on cell membrane
Demonstrating diffusion using perfume
Role of diffusion in gaseous exchange

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

- Investigate the effect of heat on cell membrane using potato
- Compare responses of boiled and raw potato to sugar solution
- Connect heat damage to membranes with how cooking changes food texture

- Bore cylindrical holes in raw and boiled potatoes
- Add concentrated sugar solution to hollow chambers
- Place potatoes in petri dishes with water
- Observe and record changes after one hour

How does heat affect the cell membrane?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 108
- Potatoes, cork borer
- Concentrated sugar solution
- Beakers, petri dishes
- Spotlight Integrated Science Learner's Book Grade 8 pg. 109
- Beetroot, cork borer
- Water baths, thermometers
- Boiling tubes, test tube rack
- Spotlight Integrated Science Learner's Book Grade 8 pg. 111
- Beetroot cores
- Dilute HCl, dilute NaOH
- Test tubes, syringes
- Spotlight Integrated Science Learner's Book Grade 8 pg. 113
- Perfume or deodorant spray
- Stopwatch
- Notebooks
- Spotlight Integrated Science Learner's Book Grade 8 pg. 114
- Gaseous exchange diagrams
- Digital devices
- Reference books

- Practical report - Observation - Written questions

Living Things and their Environment

Role of diffusion in absorption and plants
Factors affecting diffusion
Demonstrating osmosis using visking tubing

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

- Explain the role of diffusion in absorption of digested food
- Describe diffusion in plants for gaseous exchange and mineral absorption
- Relate to how plants absorb nutrients from fertilisers

- Discuss absorption of glucose from small intestine into blood
- Explain how plants take in carbon dioxide through stomata
- Describe how root hair cells absorb mineral salts by diffusion
- Search the Internet for videos on diffusion in plants

How do living things use diffusion for nutrition?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 115
- Plant diagrams
- Digital devices
- Reference materials
- Spotlight Integrated Science Learner's Book Grade 8 pg. 116
- Reference books
- Charts
- Spotlight Integrated Science Learner's Book Grade 8 pg. 118
- Visking tubing
- Concentrated sugar solution
- Distilled water, beaker

- Written summary - Oral presentation - Observation

Living Things and their Environment

Demonstrating osmosis using Irish potato
Demonstrating osmosis using banana peel strips
Factors affecting osmosis

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

- Investigate osmosis using potato cores
- Measure changes in length of potato cores in different solutions
- Relate to why vegetables become crisp in water and soft in salt

- Obtain six potato cores of equal length (50mm)
- Place three cores in distilled water and three in concentrated sugar solution
- Measure length after forty minutes
- Record and compare changes in length

What happens to plant cells in different solutions?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 120
- Irish potatoes, cork borer
- Distilled water
- Concentrated sugar solution
- Ruler, boiling tubes
- Spotlight Integrated Science Learner's Book Grade 8 pg. 121
- Raw green banana peel
- Concentrated salt solution
- Beakers, scalpel
- Spotlight Integrated Science Learner's Book Grade 8 pg. 123
- Digital devices
- Reference books
- Charts

- Data recording - Measurement accuracy - Written analysis

Living Things and their Environment

Role of osmosis in water absorption and stomata
Role of osmosis in osmoregulation and plant support

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

- Explain the role of osmosis in water absorption by roots
- Describe how osmosis controls opening and closing of stomata
- Connect to why watering plants makes them stand upright

- Discuss how root hair cells absorb water from soil by osmosis
- Explain water distribution from cell to cell in plants
- Describe how guard cells control stomata through osmosis
- Complete table on roles of osmosis

How do plants use osmosis for survival?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 124
- Plant diagrams
- Digital devices
- Reference materials
- Spotlight Integrated Science Learner's Book Grade 8 pg. 125
- Young plants
- Reference books

- Table completion - Oral questions - Written notes

Living Things and their Environment

Importance of diffusion and osmosis
Introduction to the menstrual cycle
Phases of the menstrual cycle
Ovulation and luteal phase

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

- Explain the importance of diffusion and osmosis in living things
- Summarise how these processes support life
- Connect to everyday processes like breathing, eating, and plant growth

- Watch videos on gaseous exchange in human lungs
- Discuss importance of diffusion in breathing and nutrition
- Discuss importance of osmosis in water balance
- Complete assessment activity on the sub-strand

Why are diffusion and osmosis important for life?

- Spotlight Integrated Science Learner's Book Grade 8 pg. 126
- Digital devices
- Assessment worksheets
- Reference materials
- Spotlight Integrated Science Learner's Book Grade 8
- Reference books
- Charts on menstrual cycle
- Menstrual cycle diagrams
- Charts
- Ovulation charts

- Self-assessment - Written test - Oral presentation

Living Things and their Environment

Irregular periods and bleeding
Menstrual pain and discomfort
Managing menstrual cycle challenges
Menstrual hygiene management
The male reproductive cells

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

- Identify challenges related to the menstrual cycle
- Describe irregular periods and irregular bleeding
- Recognise when to seek medical advice for menstrual problems

- Search for information on challenges related to menstrual cycle
- Discuss causes of irregular periods
- Explain what irregular bleeding means
- Discuss when these conditions require medical attention

What challenges may occur during the menstrual cycle?

- Spotlight Integrated Science Learner's Book Grade 8
- Digital devices
- Reference books
- Health education materials
- Health education charts
- Reference materials
- Health education materials
- Planning worksheets
- Sanitary products samples
- Digital devices
- Sperm cell diagrams
- Reference books

- Oral questions - Written notes - Group discussion

Living Things and their Environment

The female reproductive cell
The process of fertilisation
Cell division after fertilisation

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

- Describe the structure of an egg cell (ovum)
- Explain the function of the egg in reproduction
- Recognise that the egg provides nutrients for early embryo development

- Study diagrams of egg cells
- Identify parts: cell membrane, cytoplasm, nucleus
- Compare size of egg to sperm
- Discuss how the egg is released during ovulation

What is the structure and function of the egg cell?

- Spotlight Integrated Science Learner's Book Grade 8
- Egg cell diagrams
- Digital devices
- Reference materials
- Fertilisation diagrams
- Charts
- Cell division diagrams
- Reference books

- Diagram labelling - Written notes - Oral questions

Living Things and their Environment

Implantation
Introduction to STIs

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

- Describe the process of implantation
- Explain how the blastocyst attaches to the uterus wall
- Understand that successful implantation marks the beginning of pregnancy

- Study illustrations showing implantation
- Explain how blastocyst embeds in uterine wall
- Discuss importance of the thickened uterine lining
- Describe what happens if implantation does not occur

How does the blastocyst implant in the uterus?

- Spotlight Integrated Science Learner's Book Grade 8
- Implantation diagrams
- Digital devices
- Charts
- Health education materials
- Reference books

- Diagram labelling - Written explanation - Oral questions

Living Things and their Environment

Symptoms of HIV/AIDS
Symptoms of gonorrhea, syphilis, and herpes
Prevention of STIs - Abstinence and faithfulness

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

- Outline symptoms of HIV/AIDS
- Explain the difference between HIV and AIDS
- Know that early testing and treatment help people with HIV live healthy lives

- Search for information on HIV/AIDS symptoms
- Discuss initial symptoms: fever, fatigue, swollen lymph nodes
- Explain progression to AIDS if untreated
- Discuss importance of testing and treatment

What are the symptoms of HIV/AIDS?

- Spotlight Integrated Science Learner's Book Grade 8
- HIV/AIDS education materials
- Digital devices
- Charts
- Health education materials
- Reference books
- Prevention posters

- Written notes - Oral questions - Class discussion

Living Things and their Environment
Force and Energy
Force and Energy
Force and Energy

Prevention of STIs - Other measures
Forms of energy in nature
Forms of energy - Chemical and electrical energy
Forms of energy - Mechanical energy

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

- Describe additional STI prevention measures
- Explain the importance of regular health check-ups
- Take responsibility for personal health decisions

- Discuss proper use of protection during intercourse
- Explain importance of regular STI testing
- Discuss avoiding sharing needles and sharp objects
- Emphasise seeking immediate treatment if infected

What other measures help prevent STIs?

- Spotlight Integrated Science Learner's Book Grade 8
- Health education materials
- Digital devices
- Reference books
- Spotlight Integrated Science pg. 130
- Digital resources
- Internet access
- Batteries
- Electrical appliances
- Spotlight Integrated Science pg. 131
- Small stones
- Balls
- Working surface

- Written notes - Oral questions - Group discussion

Force and Energy

Forms of energy - Heat, light and sound energy
Energy transformation - Introduction
Energy transformation - Potential to kinetic energy
Energy transformation - Chemical to heat and light energy
Energy transformation - Electrical to heat energy

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

- Describe heat, light and sound energy
- Identify sources of heat, light and sound energy
- Connect these energy forms to daily experiences like warming food and listening to music

- Discuss heat energy and its sources
- Explain light energy and how it is produced
- Describe sound energy and how vibrations produce it

How do we experience heat, light and sound energy daily?

- Spotlight Integrated Science pg. 132
- Candles
- Torches
- Musical instruments
- Digital resources
- Charts
- Spotlight Integrated Science pg. 133
- Small stones
- Working table
- Stopwatch
- Matchsticks
- Working surface
- Spotlight Integrated Science pg. 134
- Electric water heater
- Beaker
- Water

- Oral questions - Observation - Written questions

Force and Energy

Energy transformation - Kinetic to sound energy
Energy transformation - Chemical to electrical to light energy

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

- Demonstrate transformation of kinetic energy to sound energy
- Explain how clapping produces sound
- Connect this transformation to musical instruments and daily sounds

- Clap hands and observe the energy transformation
- Discuss how kinetic energy produces sound energy
- Identify other examples of kinetic to sound energy transformation

How does movement produce sound?

- Spotlight Integrated Science pg. 134
- Musical instruments
- Digital resources
- Cells
- Switch
- Wires
- Bulb

- Practical assessment - Observation - Oral questions

Force and Energy

Energy transformation - Using a pendulum
Energy transformation in appliances - Gas cylinder and electric cooker
Energy transformation in appliances - Generators and dynamos

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

- Demonstrate energy transformation using a pendulum
- Explain the continuous transformation between potential and kinetic energy
- Connect pendulum motion to playground swings and clock mechanisms

- Set up a simple pendulum
- Observe and discuss energy transformation at different points
- Record the energy changes at points A, B and C

How does a pendulum demonstrate continuous energy transformation?

- Spotlight Integrated Science pg. 135
- String
- Bob
- Retort stand
- Spotlight Integrated Science pg. 138
- Charts showing appliances
- Digital resources
- Bicycle with dynamo
- Charts

- Practical assessment - Observation - Oral questions

Force and Energy

Energy transformation in appliances - Solar panels and microphones
Energy transformation in appliances - Electric heaters and LEDs

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

- Explain energy transformation in solar panels
- Describe how microphones work
- Connect solar energy to sustainable power solutions at home

- Study pictures of solar panels and microphones
- Discuss the energy transformations in each device
- Search the Internet for more applications

How do solar panels help us harness the sun's energy?

- Spotlight Integrated Science pg. 138
- Charts
- Digital resources
- Internet access
- Spotlight Integrated Science pg. 140
- LED torch
- Electric heater
- Charts

- Oral questions - Written assignments - Observation

Force and Energy

Safety measures - Road accidents and seat belts
Safety measures - Bright light and loud sounds
Safety measures - Fire and electrical accidents

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

- Explain dangers of energy transformation related to road accidents
- Describe how seat belts protect passengers
- Connect safety measures to daily travel in vehicles

- Discuss dangers associated with kinetic energy in moving vehicles
- Explain how seat belts and speed governors prevent injuries
- Discuss road safety measures

How do seat belts protect us during accidents?

- Spotlight Integrated Science pg. 141
- Charts on road safety
- Digital resources
- Spotlight Integrated Science pg. 142
- Sunglasses
- Earmuffs
- Charts
- Spotlight Integrated Science pg. 143
- Charts on fire safety

- Oral questions - Written assignments - Observation

Force and Energy

Applications of energy transformation - Daily life examples
Applications of energy transformation - Poster making
Meaning of pressure - Introduction

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

- Identify applications of energy transformation in daily life
- Explain energy changes when using common appliances
- Connect energy transformation to morning routines and household chores

- Read and discuss John's paragraph on energy transformation
- Identify energy transformations from waking up to going to school
- Write a short paragraph on personal energy transformation experiences

How does energy transformation support our daily activities?

- Spotlight Integrated Science pg. 144
- Charts
- Digital resources
- Spotlight Integrated Science pg. 145
- Manila papers
- Markers
- Charts
- Spotlight Integrated Science pg. 147
- Different types of shoes
- Sandy surface

- Written assignments - Oral questions - Observation

Force and Energy

Meaning of pressure - Formula and SI unit
Pressure in solids - Using toothpick and rubber
Pressure in solids - Using pin and softboard
Pressure in solids - Effect of force variation
Pressure in liquids - Using a tin can

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

- State the formula for calculating pressure
- Identify the SI unit of pressure
- Relate pressure formula to practical situations like using sharp tools

- Derive the formula for pressure
- Discuss the SI unit of pressure (Pascal)
- Calculate simple pressure problems

How do we calculate pressure?

- Spotlight Integrated Science pg. 149
- Charts
- Calculators
- Toothpicks
- Rubber
- Scissors
- Spotlight Integrated Science pg. 150
- Pins
- Softboard
- Carton box
- Pencils
- Sharpener
- Spotlight Integrated Science pg. 151
- Tall tin can
- Sellotape
- Nail and hammer
- Basin

- Oral questions - Written assignments - Observation

Force and Energy

Pressure in liquids - Using glass tubes and balloons
Pressure in liquids - Variation with density
Determining pressure in solids - Using wooden block and sand

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

- Demonstrate pressure in liquids using balloons
- Explain how depth affects pressure in liquids
- Connect this to diving and swimming at different depths

- Connect balloons to glass tubes
- Lower the tubes to different depths in water
- Observe the inflation of balloons at different depths

How does depth affect the pressure exerted by a liquid?

- Spotlight Integrated Science pg. 152
- Glass tubes
- Balloons
- Tall glass vessel
- Spotlight Integrated Science pg. 158
- Tin can
- Water
- Brine (salt solution)
- Ruler
- Spotlight Integrated Science pg. 155
- Wooden block
- Basins with sand

- Practical assessment - Observation - Oral questions

Force and Energy

Determining pressure - Calculating pressure of regular solids
Determining pressure - Effect of weight on pressure
Pressure calculations - Problems on solids

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

- Calculate pressure exerted by regular solids
- Measure dimensions and mass of wooden blocks
- Relate calculations to designing furniture and equipment

- Measure the dimensions of faces A, B and C of a wooden block
- Calculate the area of each face
- Measure mass and calculate weight and pressure

How do we calculate the pressure exerted by a solid object?

- Spotlight Integrated Science pg. 156
- Regular wooden block
- Weighing machine
- Ruler
- Spotlight Integrated Science pg. 157
- Wooden blocks
- Spotlight Integrated Science pg. 161
- Calculators
- Exercise books

- Practical assessment - Written assignments - Oral questions

Force and Energy

Pressure calculations - More problems on solids
Pressure formula in liquids - Derivation and calculations
Applications of pressure in solids - Cutting tools and tyres
Applications of pressure in liquids - Dams, submarines and project

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

- Calculate maximum and minimum pressure
- Solve problems involving elephants and heavy objects
- Relate calculations to wildlife conservation and building design

- Calculate pressure exerted by an elephant standing on all feet
- Determine maximum and minimum pressure for blocks
- Solve problems involving desks and tables

When does an object exert maximum pressure on a surface?

- Spotlight Integrated Science pg. 162
- Calculators
- Charts
- Spotlight Integrated Science pg. 164
- Charts
- Calculators
- Spotlight Integrated Science pg. 167
- Cutting tools
- School bags
- Spotlight Integrated Science pg. 169
- Pictures of dams and submarines
- Materials for hand washing equipment

- Written assignments - Oral questions - Problem-solving exercises