Mixtures, Elements and Compounds

Structure of the atom - Protons, electrons and neutrons

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

- Define the term atom
- Describe the structure of an atom
- Show interest in learning about atoms

- Discuss the meaning of an atom and illustrate its structure
- Search the Internet or use reference books to get information about the atom
- Draw the structure of an atom

How is the structure of the atom important?

- KLB Integrated Science pg. 1
- Digital resources
- Internet access and reference books
- Internet access
- Reference books
- Charts showing atomic structure

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Structure of the atom - Atomic number and mass number

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

- Define the terms atomic number and mass number
- Illustrate atomic number and mass number using chemical symbols
- Calculate the mass number of elements

- Search the Internet or use reference books to find out about atomic number and mass number
- Discuss how to illustrate atomic number and mass number
- Calculate and record the mass numbers of elements

What is the relationship between atomic number and identity of an element?

- KLB Integrated Science pg. 2
- Internet access
- Reference books
- Periodic table
- KLB Integrated Science pg. 3

- Written assignments - Observation - Oral questions

Mixtures, Elements and Compounds

Structure of the atom - Electron arrangement

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

- Explain the meaning of electron arrangement
- State the rules of electron arrangement
- Write electron arrangements of elements

- Search for information about electron arrangement
- Discuss energy levels and their electron capacities
- Practice writing electron arrangements

How are electrons arranged in an atom?

- KLB Integrated Science pg. 5
- Internet access
- Reference books
- Periodic table

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Structure of the atom - Energy level diagrams

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

- Illustrate electron arrangements using diagrams
- Draw dot or cross diagrams for elements
- Show interest in electron arrangement diagrams

- Search for information on how to illustrate electron arrangements
- Draw dot or cross diagrams for different elements
- Compare diagrams with peers

How can electron arrangements be illustrated using diagrams?

- KLB Integrated Science pg. 7
- Internet access
- Reference books
- Manila paper and felt pens
- Charts
- Manila paper
- Colored pencils

- Observation - Peer assessment - Drawing skills assessment

Mixtures, Elements and Compounds

Structure of the atom - Metals and non-metals

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

- Use electron arrangement to classify elements
- Identify metals and non-metals based on electron arrangement
- Appreciate the relationship between electron arrangement and element classification

- Search for information on metals and non-metals
- Classify the first 20 elements as metals or non-metals
- Complete a table showing classification of elements

How can electron arrangement be used to classify elements?

- KLB Integrated Science pg. 8
- Internet access
- Reference books
- Periodic table

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Structure of the atom - Model the atomic structure

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

- Identify locally available materials for modeling atoms
- Plan how to model the atomic structure
- Show interest in modeling atoms

- Brainstorm and visualize atomic models
- Identify materials needed for modeling
- Discuss and refine steps for construction

How can we model the structure of selected elements?

- KLB Integrated Science pg. 9
- Locally available materials
- Reference books
- Internet access
- Glue, scissors, colored papers
- Markers and labels

- Observation - Oral questions - Peer assessment

Mixtures, Elements and Compounds

Structure of the atom - Review and assessment

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

- Summarize key concepts about atomic structure
- Attempt questions on structure of atoms
- Show confidence in understanding atomic structure

- Review key concepts of atomic structure
- Answer revision questions
- Discuss solutions to problems

How does understanding the structure of atoms help explain the properties of elements?

- KLB Integrated Science pg. 10
- Previous notes
- Assessment questions
- Reference books

- Written test - Observation - Oral questions

Mixtures, Elements and Compounds

Metals and Alloys - Physical properties of metals

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

- Identify metals and non-metals in the environment
- List characteristics used to identify metals
- Show interest in identifying metals and non-metals

- Walk around the school compound to identify metallic and non-metallic substances
- Discuss reasons for identification
- Compare findings with other groups

How would you identify metallic and non-metallic substances in your environment?

- KLB Integrated Science pg. 12
- Various metallic and non-metallic objects
- Writing materials
- Internet access
- Reference books
- Charts showing melting points

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Metals and Alloys - Physical properties of metals

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

- Demonstrate electrical conductivity of metals
- Explain why metals conduct electricity
- Show interest in investigating properties of metals

- Set up an electric circuit
- Test conductivity of various metals
- Record and discuss observations

Why are metals good conductors of electricity?

- KLB Integrated Science pg. 13
- Dry cells, connecting wires
- Metallic samples
- Bulbs and crocodile clips
- KLB Integrated Science pg. 14
- Metal rods
- Candles, matches
- Heat source
- Clamp and stand

- Observation - Oral questions - Written reports

Mixtures, Elements and Compounds

Metals and Alloys - Physical properties of metals

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

- Demonstrate malleability of metals
- Explain how malleability is used in making metal products
- Appreciate the application of malleability

- Place metal samples on iron block
- Strike with hammer and observe changes
- Discuss observations and applications

How is the property of malleability useful in daily life?

- KLB Integrated Science pg. 15
- Iron nails, copper wire
- Zinc rod, hammer
- Iron block
- KLB Integrated Science pg. 16
- Internet access
- Print media
- Wire samples

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Metals and Alloys - Composition of alloys

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

- Define what an alloy is
- Describe the composition of common alloys
- Show interest in learning about alloys

- Search for information on alloy production
- Discuss the composition of common alloys
- Present findings in a table

What are alloys and how are they made?

- KLB Integrated Science pg. 18
- Internet access
- Reference books
- Alloy samples
- KLB Integrated Science pg. 19
- Padlocks, keys, door hinges
- Spoons, kitchen knives
- Water taps, rivets

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Metals and Alloys - Uses of metals and alloys

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

- Identify uses of common metals in daily life
- Relate the properties of metals to their uses
- Appreciate the importance of metals

- Search for information on uses of metals
- Compile findings in a table format
- Present findings to class

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

- KLB Integrated Science pg. 21
- Internet access
- Reference books
- Metal samples
- Alloy samples

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Metals and Alloys - Rusting

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

- Explain what rusting is
- Discuss the causes of rusting
- Show interest in causes of rusting

- Search for information on rusting
- Discuss causes of rusting
- Write down findings

What causes metals to rust?

- KLB Integrated Science pg. 23
- Internet access
- Reference books
- Rusted metal samples
- Test tubes, nails
- Water, oil, cotton wool
- Anhydrous calcium chloride

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Metals and Alloys - Rusting

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

- Explain the effects of rusting
- Discuss the economic impact of rusting
- Appreciate the importance of preventing rusting

- Discuss the effects of rusting
- Examine rusted items
- Calculate the cost of replacing rusted items

What are the effects of rusting?

- KLB Integrated Science pg. 24
- Rusted metal samples
- Internet access
- Reference books

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Metals and Alloys - Rusting
Metals and Alloys - Review and assessment

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

- Discuss methods of preventing rusting
- Explain how each method works
- Show interest in rust prevention

- Discuss methods of preventing rusting
- Demonstrate some prevention methods
- Present findings to class

How can rusting be prevented?

- KLB Integrated Science pg. 25
- Internet access
- Reference books
- Materials for demonstrations
- KLB Integrated Science pg. 26
- Previous notes
- Assessment questions

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Water Hardness - Physical properties of water

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

- Describe the physical properties of water
- Test for the color of different water samples
- Show interest in investigating water properties

- Observe water samples of different colors
- Compare water samples with color chart
- Record observations

What are the physical properties of water?

- KLB Integrated Science pg. 27
- Boiling tubes
- Colored solutions
- Test tubes rack
- Color chart
- Water samples
- Beakers
- Test tubes
- Droppers

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Water Hardness - Physical properties of water
Water Hardness - Hard and soft water

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

- Determine the boiling point of water
- Explain why pure water boils at 100°C
- Show interest in investigating water properties

- Set up apparatus to measure boiling point
- Heat water and record temperature
- Determine the boiling point

How does temperature change as water is heated to boiling?

- KLB Integrated Science pg. 28
- Beaker, thermometer
- Heat source
- Tripod stand, clamp
- Distilled water
- KLB Integrated Science pg. 29
- Water samples
- Liquid soap
- Test tubes with corks
- Droppers

- Observation - Oral questions - Written reports

Mixtures, Elements and Compounds

Water Hardness - Hard and soft water

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

- Define hard and soft water
- Explain the causes of water hardness
- Show interest in water hardness

- Search for information on hard and soft water
- Discuss causes of water hardness
- Present findings to class

What causes water to be hard?

- KLB Integrated Science pg. 29
- Internet access
- Reference books
- Water samples
- KLB Integrated Science pg. 30
- Hard water samples

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Water Hardness - Hard and soft water

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

- Outline advantages of hard water
- Explain applications of hard water
- Appreciate the importance of hard water

- Research advantages of hard water
- Discuss health benefits and applications
- Present findings to class

Why is hard water preferred for drinking?

- KLB Integrated Science pg. 30
- Internet access
- Reference books
- Charts
- KLB Integrated Science pg. 31
- Scaled kettle elements

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Water Hardness - Methods of softening hard water

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

- Describe methods of softening hard water
- Explain principles behind different methods
- Show interest in water treatment

- Research methods of softening hard water
- Discuss various softening methods
- Present findings to class

What methods can be used to soften hard water?

- KLB Integrated Science pg. 32
- Internet access
- Reference books
- Charts
- Calcium hydrogen carbonate solution
- Soap solution
- Heat source
- Test tubes

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Water Hardness - Methods of softening hard water

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

- Soften hard water by adding sodium carbonate
- Test the effectiveness of chemical treatment
- Show interest in water treatment

- Add sodium carbonate to hard water
- Filter the mixture
- Test water before and after treatment

How effective is sodium carbonate in softening hard water?

- KLB Integrated Science pg. 33
- Calcium hydrogen carbonate solution
- Sodium carbonate
- Filter paper and funnel
- Soap solution

- Observation - Oral questions - Written reports

Mixtures, Elements and Compounds

Water Hardness - Methods of softening hard water

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

- Soften hard water by distillation
- Test the effectiveness of distillation
- Show interest in water treatment

- Set up distillation apparatus
- Distill hard water samples
- Test water before and after distillation

How effective is distillation in softening hard water?

- KLB Integrated Science pg. 34
- Round-bottomed flask
- Liebig condenser
- Heat source
- Hard water samples
- KLB Integrated Science pg. 35
- Previous experimental results
- Reference books
- Internet access

- Observation - Oral questions - Written reports

Mixtures, Elements and Compounds
Living Things and Their Environment

Water Hardness - Review and assessment
Nutrition in plants - Parts of a leaf

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

- Summarize key concepts about water hardness
- Attempt questions on water hardness
- Show confidence in understanding water hardness

- Review key concepts
- Answer revision questions
- Discuss solutions to problems

Why is understanding water hardness important in daily life?

- KLB Integrated Science pg. 36
- Previous notes
- Assessment questions
- Reference books
- Textbooks (KLB Integrated Science pg. 64)
- Hand lens
- Variety of fresh leaves
- Labelled charts of a leaf

- Written test - Observation - Oral questions

Living Things and Their Environment

Nutrition in plants - Internal structure of a leaf
Nutrition in plants - Functions of leaf parts

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

- Identify the internal structures of a leaf
- Draw and label the internal structure of a leaf
- Show interest in the internal structure of the leaf

- Observe prepared slides of transverse sections of a leaf under a light microscope
- Identify various structures in the sections observed
- Draw and label the internal structure of the leaf

How does the internal structure of a leaf relate to its function?

- Textbooks (KLB Integrated Science pg. 65)
- Prepared slides of leaf sections
- Light microscope
- Charts of leaf TS
- Textbooks (KLB Integrated Science pg. 66)
- Digital resources
- Charts showing leaf structures

- Drawing skills - Observation checklist - Written questions

Living Things and Their Environment

Nutrition in plants - Adaptations of the leaf to photosynthesis
Nutrition in plants - Structure and function of chloroplast

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

- Explain adaptations of the leaf to photosynthesis
- Relate leaf adaptations to their functions
- Appreciate how adaptations enhance photosynthesis

- Search Internet or offline digital content for information on adaptations of the leaf to photosynthesis
- Discuss how leaf features maximize photosynthesis
- Share findings with peers

How are leaves adapted to carry out photosynthesis efficiently?

- Textbooks (KLB Integrated Science pg. 67)
- Digital resources
- Wall charts on leaf adaptations
- Textbooks (KLB Integrated Science pg. 68)
- Charts of chloroplast structure

- Oral questions - Written assessment - Observation

Living Things and Their Environment

Nutrition in plants - Process of photosynthesis
Nutrition in plants - Light and dark reactions

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

- Explain the process of photosynthesis
- Identify raw materials and products of photosynthesis
- Appreciate the importance of photosynthesis

- Discuss pictorial summaries of photosynthesis
- Describe the light and dark stages of photosynthesis
- Discuss raw materials and their sources

What happens during the process of photosynthesis?

- Textbooks (KLB Integrated Science pg. 69)
- Digital resources
- Charts on photosynthesis
- Textbooks (KLB Integrated Science pg. 70)
- Charts on photosynthesis stages

- Written test - Oral questions - Diagrams

Living Things and Their Environment

Nutrition in plants - Products of photosynthesis

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

- Identify products of photosynthesis
- Explain how products are formed and stored
- Appreciate the value of photosynthetic products

- Discuss the products of photosynthesis using reference materials
- Explain how each organic food substance is produced and stored
- Make notes on findings

What are the products of photosynthesis and how are they important?

- Textbooks (KLB Integrated Science pg. 71)
- Charts on photosynthesis
- Reference books

- Written test - Oral assessment - Observation

Living Things and Their Environment

Nutrition in plants - Gas produced during photosynthesis
Nutrition in plants - Testing for starch in a leaf

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

- Investigate the gas produced during photosynthesis
- Identify oxygen as a by-product of photosynthesis
- Appreciate the experimental approach to studying photosynthesis

- Set up experiment with water plants to collect gas produced during photosynthesis
- Test the collected gas with a glowing splint
- Record and discuss observations

What gas is released during photosynthesis?

- Textbooks (KLB Integrated Science pg. 72)
- Water plants (Elodea)
- Test tubes, beakers
- Sodium hydrogen carbonate
- Textbooks (KLB Integrated Science pg. 73)
- Fresh leaves
- Iodine solution
- Methylated spirit, hot water

- Practical skills - Written reports - Observation

Living Things and Their Environment

Nutrition in plants - Conditions necessary for photosynthesis
Nutrition in plants - Investigating light in photosynthesis

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

- Discuss conditions necessary for photosynthesis
- Explain the role of different factors in photosynthesis
- Show interest in factors affecting photosynthesis

- Search for information on conditions necessary for photosynthesis
- Discuss the role of light, carbon(IV) oxide, chlorophyll, and water
- Share findings with class

What conditions are necessary for photosynthesis to occur?

- Textbooks (KLB Integrated Science pg. 74)
- Digital resources
- Reference books
- Textbooks (KLB Integrated Science pg. 75)
- Potted plant
- Light-proof material
- Iodine solution

- Written questions - Oral assessment - Observation

Living Things and Their Environment

Nutrition in plants - Investigating carbon(IV) oxide in photosynthesis
Nutrition in plants - Investigating chlorophyll in photosynthesis

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

- Investigate the necessity of carbon(IV) oxide in photosynthesis
- Explain the role of carbon(IV) oxide in photosynthesis
- Demonstrate scientific skills in experimental design

- Set up apparatus with leaf in a flask containing sodium hydroxide
- Test the leaf for starch after exposure to light
- Compare with control leaf outside the flask

Why is carbon(IV) oxide necessary for photosynthesis?

- Textbooks (KLB Integrated Science pg. 76)
- Potted plant
- Conical flask, cork
- Sodium hydroxide pellets
- Textbooks (KLB Integrated Science pg. 77)
- Plant with variegated leaves
- Iodine solution
- Methylated spirit

- Practical skills - Written reports - Observation

Living Things and Their Environment

Nutrition in plants - Investigating water in photosynthesis
Nutrition in plants - Importance of photosynthesis

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

- Discuss the necessity of water in photosynthesis
- Explain how water shortage affects plant growth
- Design a project to compare plants under different water conditions

- Study photographs of plants exposed to different moisture conditions
- Discuss characteristics of each group of plants
- Design a simple investigation on water requirements

How does water availability affect photosynthesis?

- Textbooks (KLB Integrated Science pg. 78)
- Photographs of plants under different water conditions
- Digital resources
- Textbooks (KLB Integrated Science pg. 79)
- Reference books

- Project design - Written assessment - Oral questions

Living Things and Their Environment

Nutrition in animals - Modes of nutrition
Nutrition in animals - Dentition in animals

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

- Discuss different modes of nutrition in animals
- Differentiate between heterotrophic modes of nutrition
- Show interest in animal nutrition

- Search for information on modes of nutrition
- Discuss parasitic, saprophytic, symbiotic and holozoic nutrition
- Share findings with the class

How do animals obtain their food?

- Textbooks (KLB Integrated Science pg. 80)
- Digital resources
- Charts on animal nutrition
- Textbooks (KLB Integrated Science pg. 81)
- Models of animal teeth
- Charts of teeth

- Written test - Oral questions - Observation

Living Things and Their Environment

Nutrition in animals - Types and structure of teeth
Nutrition in animals - Functions of different teeth

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

- Identify different types of teeth
- Describe the structure of teeth
- Appreciate the relationship between structure and function in teeth

- Examine models or specimens of different teeth types
- Draw and label external and internal structure of teeth
- Discuss functions of different teeth parts

How are teeth adapted to their functions?

- Textbooks (KLB Integrated Science pg. 82)
- Models of teeth
- Digital resources
- Charts of teeth
- Textbooks (KLB Integrated Science pg. 83)
- Charts

- Drawings - Written assessment - Observation

Living Things and Their Environment

Nutrition in animals - Classification based on dentition

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

- Classify animals based on their dentition
- Determine dental formula of different animals
- Show interest in dentition patterns

- Study specimens or models of jaws of different animals
- Count teeth in upper and lower jaws
- Determine dental formula of different animals

How are animals classified based on their dentition?

- Textbooks (KLB Integrated Science pg. 84)
- Specimens or models of animal jaws
- Digital resources

- Written assessment - Oral questions - Practical skills

Living Things and Their Environment

Nutrition in animals - Herbivores, carnivores, omnivores
Nutrition in animals - Digestive system in humans

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

- Identify dentition of herbivores, carnivores and omnivores
- Explain adaptations of teeth to different feeding habits
- Show interest in relationship between dentition and diet

- Study jaws of herbivores, carnivores and omnivores
- Identify adaptations of teeth to feeding habits
- Discuss dental formula of different animal groups

How does dentition reflect the feeding habits of animals?

- Textbooks (KLB Integrated Science pg. 85)
- Models or specimens of animal jaws
- Digital resources
- Charts
- Textbooks (KLB Integrated Science pg. 86)
- Charts of digestive system
- Models

- Written assessment - Oral questions - Practical skills

Living Things and Their Environment

Nutrition in animals - Process of digestion
Nutrition in animals - Absorption and assimilation

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

- Explain the process of digestion along the alimentary canal
- Describe the role of digestive juices and enzymes
- Show interest in the digestive process

- Search for information on digestion in the alimentary canal
- Discuss digestion in the mouth, stomach, duodenum and ileum
- Watch animations on the digestive process

How does the process of digestion occur?

- Textbooks (KLB Integrated Science pg. 87)
- Digital resources
- Charts of digestive process
- Textbooks (KLB Integrated Science pg. 88)
- Charts of villi structure

- Written assessment - Oral questions - Observation

Living Things and Their Environment

Reproduction in plants - Functions of parts of a flower
Reproduction in plants - Pollination

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

- Identify parts of a flower
- Describe functions of flower parts
- Show interest in flower structure

- Collect and examine suitable flowers
- Identify calyx, corolla, pistil, stamen
- Discuss functions of each part

What are the different parts of a flower and their functions?

- Textbooks (KLB Integrated Science pg. 86)
- Fresh flowers
- Hand lens
- Charts of flower structure
- Textbooks (KLB Integrated Science pg. 87)
- Digital resources
- Charts on pollination

- Practical skills - Drawings - Written assessment

Living Things and Their Environment

Reproduction in plants - Adaptations to insect pollination
Reproduction in plants - Adaptations to wind pollination

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

- Identify features of insect-pollinated flowers
- Explain adaptations of flowers to insect pollination
- Show interest in flower adaptations

- Examine an insect-pollinated flower
- Record color, scent, size of flower
- Discuss adaptations to insect pollination

How are flowers adapted to insect pollination?

- Textbooks (KLB Integrated Science pg. 88)
- Insect-pollinated flowers
- Hand lens
- Charts
- Textbooks (KLB Integrated Science pg. 94)
- Wind-pollinated flowers (grass/maize)

- Practical skills - Written assessment - Oral questions

Living Things and Their Environment

Reproduction in plants - Field observation of pollination
Reproduction in plants - Fertilization in flowering plants

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

- Observe pollinating agents in action
- Identify different types of pollinating agents
- Show interest in natural pollination processes

- Survey different areas to identify flower types
- Observe organisms visiting flowers
- Record observations on pollinating agents

What organisms act as pollinating agents?

- Textbooks (KLB Integrated Science pg. 95)
- Flowers in school compound
- Hand lens
- Camera/smartphone
- Textbooks (KLB Integrated Science pg. 96)
- Digital resources
- Charts on plant fertilization

- Field observation skills - Written reports - Practical assessment

Living Things and Their Environment

Reproduction in plants - Double fertilization
Reproduction in plants - Fruit formation

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

- Explain the process of double fertilization
- Describe formation of zygote and endosperm
- Appreciate the uniqueness of flowering plant reproduction

- Search for animations on double fertilization
- Discuss the fusion of nuclei in the embryo sac
- Make a model of double fertilization

What happens during double fertilization?

- Textbooks (KLB Integrated Science pg. 97)
- Digital resources
- Charts on double fertilization
- Textbooks (KLB Integrated Science pg. 98)
- Various fruits
- Charts

- Model making - Written assessment - Oral questions

Living Things and Their Environment

Reproduction in plants - Types of fruits

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

- Classify fruits based on structure
- Differentiate between succulent and dry fruits
- Show interest in fruit diversity

- Collect various fruits and seeds
- Group fruits into dry and succulent types
- Observe internal features of different fruits

How are fruits classified?

- Textbooks (KLB Integrated Science pg. 99)
- Various fruits
- Knife/scalpel
- Specimen dishes

- Practical skills - Written assessment - Classification charts

Living Things and Their Environment

Reproduction in plants - Fruit and seed dispersal
Reproduction in plants - Animals as dispersal agents

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

- Explain the importance of fruit and seed dispersal
- Describe different methods of dispersal
- Appreciate adaptations for dispersal

- Collect fruits and seeds from different plants
- Observe external features
- Group fruits according to dispersal methods

How are fruits and seeds dispersed?

- Textbooks (KLB Integrated Science pg. 102)
- Various fruits and seeds
- Hand lens
- Specimen dishes
- Textbooks (KLB Integrated Science pg. 106)
- Fruits with hooks (black jack)
- Succulent fruits

- Practical skills - Written assessment - Observation

Living Things and Their Environment

Reproduction in plants - Water as a dispersal agent
Reproduction in plants - Wind as a dispersal agent

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

- Identify fruits dispersed by water
- Explain adaptations for water dispersal
- Appreciate plant-environment interactions

- Observe fruits adapted for water dispersal
- Identify buoyancy adaptations
- Discuss features of water-dispersed fruits

How are fruits adapted for dispersal by water?

- Textbooks (KLB Integrated Science pg. 107)
- Coconut fruit if available
- Pictures of water-dispersed fruits
- Digital resources
- Textbooks (KLB Integrated Science pg. 108)
- Wind-dispersed fruits/seeds
- Hand lens

- Written assessment - Oral questions - Observation

Living Things and Their Environment

Reproduction in plants - Self-dispersal mechanism
Reproduction in plants - Importance of dispersal

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

- Describe explosive dispersal mechanism
- Explain adaptations for self-dispersal
- Appreciate diversity in dispersal methods

- Observe fruits with explosive dispersal
- Identify legumes and other explosive fruits
- Discuss explosive mechanism process

How do some plants disperse their seeds without external agents?

- Textbooks (KLB Integrated Science pg. 109)
- Pods of legumes
- Castor oil fruits if available
- Digital resources
- Textbooks (KLB Integrated Science pg. 110)
- Reference books

- Written assessment - Oral questions - Observation

Living Things and Their Environment

Reproduction in plants - Effect of agrochemicals
Reproduction in plants - Role of flowers in nature

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

- Explain effects of agrochemicals on pollinating agents
- Discuss impact on plant reproduction
- Show concern for environmental conservation

- Search for information on agrochemicals
- Discuss categories of agrochemicals
- Analyze effects on pollinators and plant reproduction

How do agrochemicals affect pollination and reproduction in plants?

- Textbooks (KLB Integrated Science pg. 111)
- Digital resources
- Charts on agrochemicals
- Reference books

- Written assessment - Oral questions - Group discussions

Living Things and Their Environment

The interdependence of life - Components of the environment
The interdependence of life - Competition

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

- Define ecosystem, ecology and environment
- Identify biotic and abiotic components
- Show interest in interactions in ecosystems

- Study diagrams of ecosystems
- Identify living and non-living components
- Discuss relationships between organisms

What is an ecosystem?

- Textbooks (KLB Integrated Science pg. 115)
- Digital resources
- Charts of ecosystems
- Textbooks (KLB Integrated Science pg. 116)
- Reference books

- Written assessment - Oral questions - Observation

Living Things and Their Environment

The interdependence of life - Predation
The interdependence of life - Parasitism

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

- Define predation, predator and prey
- Explain adaptations of predators and prey
- Show interest in predator-prey relationships

- Search for information on predation
- Discuss adaptations of predators and prey
- Analyze predator-prey population dynamics

How does predation affect population dynamics?

- Textbooks (KLB Integrated Science pg. 117)
- Digital resources
- Videos on predation
- Textbooks (KLB Integrated Science pg. 119)
- Charts on parasitism

- Written assessment - Oral questions - Group discussions

Living Things and Their Environment

The interdependence of life - Symbiosis

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

- Define symbiosis
- Describe examples of symbiotic relationships
- Appreciate mutual benefits in symbiosis

- Search for information on symbiotic relationships
- Discuss root nodules, lichens, and ox-pecker relationships
- Analyze benefits to each partner

How do organisms benefit from symbiotic relationships?

- Textbooks (KLB Integrated Science pg. 120)
- Digital resources
- Charts on symbiosis

- Written assessment - Oral questions - Group discussions

Living Things and Their Environment

The interdependence of life - Saprophytism
The interdependence of life - Temperature effects

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

- Define saprophytism
- Explain the role of saprophytes in ecosystems
- Appreciate decomposers in nutrient cycling

- Search for information on saprophytes
- Discuss bread molds, mushrooms and other decomposers
- Analyze effects on nutrient cycling

How do saprophytes contribute to ecosystem functioning?

- Textbooks (KLB Integrated Science pg. 121)
- Digital resources
- Photographs of fungi
- Textbooks (KLB Integrated Science pg. 122)
- Thermometers
- Water in basin

- Written assessment - Oral questions - Group presentations

Living Things and Their Environment

The interdependence of life - Light effects
The interdependence of life - Atmospheric pressure

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

- Explain how light affects organisms
- Describe importance of light intensity, quality and duration
- Show interest in light as an ecological factor

- Discuss aspects of light affecting organisms
- Explain how light affects plants and animals
- Discuss measurement of light in ecosystems

How does light affect organisms in an ecosystem?

- Textbooks (KLB Integrated Science pg. 123)
- Digital resources
- Light meter if available
- Secchi disc
- Textbooks (KLB Integrated Science pg. 124)
- Barometer if available

- Written assessment - Oral questions - Group discussions

Living Things and Their Environment

The interdependence of life - Humidity effects
The interdependence of life - Wind effects

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

- Define humidity
- Explain effects of humidity on organisms
- Demonstrate measurement of humidity

- Discuss meaning of humidity
- Measure humidity using cobalt chloride paper
- Analyze effects on plants and animals

How does humidity affect organisms?

- Textbooks (KLB Integrated Science pg. 125)
- Cobalt(II) chloride paper
- Forceps
- Stopwatch
- Textbooks (KLB Integrated Science pg. 126)
- Digital resources
- Materials for windsock/wind vane

- Practical skills - Written assessment - Oral questions

Living Things and Their Environment

The interdependence of life - pH and salinity
The interdependence of life - Energy flow

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

- Define pH and salinity
- Measure pH of soil and water samples
- Explain effects of pH and salinity on organisms

- Test pH of water samples
- Test pH of soil samples
- Discuss effects on organisms

How do pH and salinity affect living organisms?

- Textbooks (KLB Integrated Science pg. 127)
- Universal indicator paper
- Soil and water samples
- Test tubes
- Textbooks (KLB Integrated Science pg. 128)
- Digital resources
- Charts on energy flow

- Practical skills - Written assessment - Observation

Living Things and Their Environment

The interdependence of life - Food chains
The interdependence of life - Food webs

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

- Define food chain
- Construct simple food chains
- Show interest in feeding relationships

- Observe feeding habits of organisms
- Record what each organism feeds on
- Construct food chains based on observations

What is a food chain?

- Textbooks (KLB Integrated Science pg. 129)
- Digital resources
- Charts on food chains
- Textbooks (KLB Integrated Science pg. 130)
- Charts on food webs

- Written assessment - Food chain construction - Observation

Living Things and Their Environment

The interdependence of life - National Parks ecosystem
The interdependence of life - Decomposers

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

- Identify organisms in Kenyan National Parks
- Describe interrelationships in National Parks
- Appreciate biodiversity conservation

- Select a National Park for study
- Research organisms found in the park
- Construct food webs based on park organisms

What interrelationships exist in Kenyan National Parks?

- Textbooks (KLB Integrated Science pg. 131)
- Digital resources
- Reference books on National Parks
- Textbooks (KLB Integrated Science pg. 132)
- School compost site
- Hand lens

- Project work - Written assessment - Group presentations

Living Things and Their Environment

The interdependence of life - Human activities

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

- Describe effects of human activities on ecosystems
- Explain habitat change, conservation, and species introduction
- Show concern for environmental conservation

- Search for information on human impacts
- Discuss habitat change, poaching, and introduced species
- Analyze conservation methods

How do human activities affect the environment?

- Textbooks (KLB Integrated Science pg. 133)
- Digital resources
- Reference books

- Written assessment - Group presentations - Debates