Force and energy

Force and Energy: Transformation of energy; Forms of energy

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

Identify the forms of energy in their environment.
Study the pictures in learner's book 8 involving various forms of energy.
Appreciate the forms of energy in their environment.

In their groups, learners are guided to identify the forms of energy in their environment.
In their groups, learners are guided to study the pictures in learner's book 8 involving various forms of energy.
In their groups, learners are guided to do the tasks in learner's book 8 page 131

What is energy? What are the forms of energy in the environment?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 130-132
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Force and energy

Renewable energy sources
Non-renewable energy sources

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

Explain the meaning of renewable energy sources.
Recognise the importance of renewable energy sources.
Appreciate the use of renewable energy sources.


Explain the meaning of non-renewable energy sources.
Recognise the importance of non-renewable energy sources.
Appreciate the use of non-renewable energy sources.

In groups, learners are guided to explain the meaning of renewable energy sources.
In groups, learners are guided to recognise the importance of renewable energy sources.
In groups, learners are guided to give examples of renewable energy sources.

In groups, learners are guided to explain the meaning of non-renewable energy sources.
In groups, learners are guided to recognise the importance of non-renewable energy sources.
In groups, learners are guided to give examples of non-renewable energy sources.

What are renewable energy sources?
What are non-renewable energy sources?

Curriculum design; Integrated Science Grade 8
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Force and energy

Classification of renewable and non-renewable energy sources

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

State the difference between renewable and non-renewable energy sources.
Classify energy sources in nature into renewable and non-renewable energy sources.
Appreciate the importance of energy sources in nature.

In groups, learners are guided to state the difference between renewable and non-renewable energy sources.
In groups, learners are guided to outline the importance of renewable and non-renewable energy sources.
In groups, learners are guided to classify energy sources in nature into renewable and non-renewable energy sources.

What are the importance of energy sources in the environment?

Curriculum design; Integrated Science Grade 8
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Force and energy

Energy transformations in nature.

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

Explain the meaning of energy transformation.
Demonstrate energy transformations using locally available materials.
Have a desire to learn more about energy transformation.

In groups, learners are guided to explain the meaning of energy transformation.
In groups, learners are guided to identify energy transformations in nature.
In groups, learners are guided to demonstrate energy transformations using locally available materials.

What is energy transformation?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 132
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Force and energy

Energy transformations using materials in their locality

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

State the materials needed to demonstrate the energy transformations in a falling object.
Demonstrate the energy transformations in a falling object.
Have fun and enjoy doing the experiment.

In groups, learners are guided to state the materials needed to demonstrate the energy transformations in a falling object.
In groups, learners are guided to outline the procedure of investigating energy transformations in a falling object.
In groups, learners are guided to demonstrate the energy transformations in a falling object.

Which other locally available can you use to demonstrate the energy transformations in a falling objects?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 133
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Force and energy

Energy transformations using materials in their locality
Appliances whose working relies on energy transformations.

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

State the materials needed to demonstrate the energy transformations in a swinging objects.
Demonstrate the energy transformations in a swinging objects.
Have fun and enjoy doing the experiment.


Identify appliances whose working relies on energy transformations.
Draw the appliances in learner's book 8.
Appreciate the use of appliances whose working relies on energy transformations.

In groups, learners are guided to state the materials needed to demonstrate the energy transformations in a swinging objects.
In groups, learners are guided to outline the procedure of investigating energy transformations in a swinging objects.
In groups, learners are guided to demonstrate the energy transformations in a swinging objects.

In groups, learners are guided to identify appliances whose working relies on energy transformations.
In groups, learners are guided to draw the appliances in learner's book 8 page 138
In groups, learners are guided to discuss and write the energy transformations that take place when the appliances are in use.

What form of energy does the stone possess when moving downwards from its highest point?
What is the use of an electric heater? What is a diode?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 134-135
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Spotlight; Integrated Science Learner's Book Grade 8 pg. 135-138
Spotlight; Integrated Science Learner's Book Grade 8 pg. 138-139
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Force and energy

Digital Activity

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

Use their digital devices, learners to search the internet for information on dangers associated with energy transformation and strategies of preventing them.
Write down their findings.
Appreciate the use of digital devices.

As a class, learners are guided to use their digital devices, learners to search the internet for information on dangers associated with energy transformation and strategies of preventing them.
As a class, learners are guided to write down their findings.
In groups, learners to share their findings with their classmates.

What have you learnt about the dangers associated with energy transformation?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 139
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Force and energy

Safety measures associated with energy transformation.

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

Discuss the safety measures associated with energy transformation.
Study the pictures in learner's book 8
Appreciate the safety measures associated with energy transformation.

In groups, learners to discuss the safety measures associated with energy transformation.
In groups, learners to study the pictures in learner's book 8 page 141
In groups, learners to state the importance of observing safety measures associated with energy transformation.

Why is it important to observe safety measures associated with energy transformation?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 141-142
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Force and energy

Safety measures associated with energy transformation.

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

Read the report in learner's book 8
Demonstrate the steps to follow when lighting a gas cooker.
Appreciate the importance of preventing dangers associated with energy transformation.

In groups, learners are guided to read the report in learner's book 8 page 142
In groups, learners are guided to list the dangers associated with the energy transformations processes and state their preventive measures.
In groups, learners are guided to demonstrate the steps to follow when lighting a gas cooker.

What are some of the preventive measures against the dangers associated with energy transformation?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 142-144
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Force and energy

Application of energy transformation.
Pressure

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

Read the paragraph in learner's book 8
Make a poster appreciating the application of energy transformation processes.
Appreciate the application of energy transformation.


Discuss the meaning of pressure.
Read the discussion in learner's book 8
Have a desire to learn more about pressure.

In groups, learners are guided to read the paragraph in learner's book 8 page 144
In groups, learners are guided to give examples of applications of energy transformation.
In groups, learners are guided to make a poster appreciating the application of energy transformation processes.

In groups, learners are guided to discuss the meaning of pressure.
In groups, learners are guided to read the discussion in learner's book 8 page 148
In groups, learners are guided to answer the questions that follows.

What are some of the applications of energy transformation?
What is force? What is pressure.

Spotlight; Integrated Science Learner's Book Grade 8 pg. 144-147
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Spotlight; Integrated Science Learner's Book Grade 8 pg. 147-149
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Force and energy

Describing pressure in solids

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

State the materials needed to demonstrate and describe pressure in solids.
Demonstrate pressure in solids.
Have fun and enjoy doing the experiment.

In groups, learners are guided to state the materials needed to demonstrate and describe pressure in solids.
In groups, learners are guided to outline the procedure of demonstrating pressure in solids.
In groups, learners are guided to demonstrate pressure in solids.

Between the blunt and sharp pencil, which one easily pierces the carton box?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 149-151
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Force and energy

Describing pressure in liquids

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

State the materials and requirements needed to investigate pressure in liquids.
Investigate pressure in liquids.
Appreciate the importance of pressure in liquids.

In groups, learners are guided to state the materials and requirements needed to investigate pressure in liquids.
In groups, learners are guided to investigate pressure in liquids.
In groups, learners are guided to describe pressure in liquids.

What have you observed from the experiment?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 151-152
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Force and energy

To describe pressure in liquids using glass tubes and balloons

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

State the materials and requirements needed to investigate pressure in liquids using glass tubes and balloons.
Investigate pressure in liquids using glass tubes and balloons.
Have fun and enjoy conducting the experiment.

In groups, learners are guided to state the materials and requirements needed to investigate pressure in liquids using glass tubes and balloons.
In groups, learners are guided to investigate pressure in liquids using glass tubes and balloons.
In groups, learners are guided to describe pressure in liquids using glass tubes and balloons.

What have you observed from the experiment?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 152-153
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Force and energy

To describe pressure in liquids using a tin.
Determining pressure in solids and liquids

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

State the materials and requirements needed to investigate pressure in liquids using a tin.
Investigate pressure in liquids using a tin.
Appreciate the importance of pressure in liquids.


State the formula of pressure, P
Work out SI unit of pressure.
Have a desire to learn more about pressure in solids.

In groups, learners are guided to state the materials and requirements needed to investigate pressure in liquids using a tin.
In groups, learners are guided to investigate pressure in liquids using a tin.
In groups, learners are guided to describe pressure in liquids using a tin.

In groups, learners are guided to state the formula of pressure, P
In groups, learners are guided to explain the meaning of SI unit of force.
In groups, learners are guided to work out SI unit of pressure.

How do you describe pressure in liquids?
What is the formula of pressure?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 153-154
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Spotlight; Integrated Science Learner's Book Grade 8 pg. 154
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Force and energy

Determining pressure in solids

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

State the materials and requirements needed to investigate pressure in solids.
Investigate pressure in solids.
Appreciate the importance of pressure in solids.

In groups, learners are guided to state the materials and requirements needed to investigate pressure in solids.
In groups, learners are guided to investigate pressure in solids.
In groups, learners are guided to determine pressure in solids.

What have you learnt about pressure in solids?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 155
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Force and energy

To determine pressure in a regular solid
To determine pressure in similar solids.

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

State the materials and requirements needed to determine pressure in a regular solid.
Investigate pressure in a regular solid.
Have fun and enjoy the experiment.

In groups, learners are guided to state the materials and requirements needed to determine pressure in a regular solid.
In groups, learners are guided to investigate pressure in a regular solid.
In groups, learners are guided to calculate the pressure exerted by each surface area using the formula.

Relate the area of the faces with pressure they have calculated. What do you notice?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 155-157
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Spotlight; Integrated Science Learner's Book Grade 8 pg. 157-158

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Force and energy

Determining pressure in liquids; Using a tin to investigate variation of pressure in liquids.

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

State the materials and requirements needed to investigate variation of pressure in liquids.
Investigate variation of pressure in liquids.
Appreciate the importance of variation of pressure in liquids.

In groups, learners are guided to state the materials and requirements needed to investigate variation of pressure in liquids.
In groups, learners are guided to investigate variation of pressure in liquids.
In groups, learners are guided to copy and complete the table in learner's book 8 page 160

What is variation of pressure?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 158-160
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Force and energy

To investigate the relationship of pressure in liquids to its depth and density using a tall glass jar.
Solving numerical problems involving pressure.

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

State the materials and requirements needed to investigate the relationship of pressure in liquids to its depth and density using a tall glass jar.
Investigate the relationship of pressure in liquids to its depth and density using a tall glass jar.
Appreciate the importance of pressure in liquids to its depth and density using a tall glass jar.


State the formula to solve numerical problems involving pressure in solids.
Work out the surface area of the smallest face in m

In groups, learners are guided to state the materials and requirements needed to investigate the relationship of pressure in liquids to its depth and density using a tall glass jar.
In groups, learners are guided to investigate the relationship of pressure in liquids to its depth and density using a tall glass jar.
In groups, learners are guided to discuss their observations with their classmates.

In groups, learners are guided to state the formula to solve numerical problems involving pressure in solids.

In groups, learners are guided to work out the surface area of the smallest face in m

What is the relationship of pressure in liquids to its depth and density?
What is the surface area of the smallest face in m

Spotlight; Integrated Science Learner's Book Grade 8 pg. 160-161
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Spotlight; Integrated Science Learner's Book Grade 8 pg. 161-163
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Force and energy

Solving numerical problems involving pressure using a formula

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

State the formula of working out pressure
Solve numerical problems involving pressure using the formula.
Enjoy solving numerical problems involving pressure using the formula.

Individually, learners are guided to state the formula of working out pressure
Individually, learners are guided to solve numerical problems involving pressure using the formula.
Individually, learners are guided to show their work to their teacher.

What is the formula of working out the surface area?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 163-164
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Force and energy

Pressure formula in liquids.

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

State the formula to solve numerical problems involving pressure in liquids.
Work out pressure in liquids.
Enjoy solving numerical problems involving pressure in liquids.

In groups, learners are guided to state the formula to solve numerical problems involving pressure in liquids.
In groups, learners are guided to work out pressure in liquids.
In groups, learners are guided to work out the examples in learner's book 8 page 166

What is the formula of working pressure in liquids?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 164-166
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Force and energy

Solve numerical problems involving pressure using formula

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

State the formula of working out pressure using the formula.
Solve numerical problems involving pressure using the formula.
Appreciate the importance of numerical problems.

Individually, learners are guided to state the formula of working out pressure using the formula, P = HXDXG    Where h- height, d- density, g - gravity.

What is the formula of working out the pressure in solids?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 167
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Force and energy

Applications of pressure in solids.
Applications of pressure in liquids.

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

Identify the applications of pressure in solids.
Summarise the applications of pressure in solids.
Appreciate the applications of pressure in solids.


Identify the applications of pressure in liquids.
Summarise the applications of pressure in liquids.
Appreciate the applications of pressure in liquids.

In groups, learners are guided to identify the applications of pressure in solids.
In groups, learners are guided to study the pictures in learner's book 8 page 168
In groups, learners are guided to summarise the applications of pressure in solids.

In groups, learners are guided to identify the applications of pressure in liquids.
In groups, learners are guided to study the pictures in learner's book 8 page 169.
In groups, learners are guided to summarise the applications of pressure in liquids.

What are other applications of pressure in solids?
What are other applications of pressure in liquids?

Spotlight; Integrated Science Learner's Book Grade 8 pg. 167-169
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Spotlight; Integrated Science Learner's Book Grade 8 pg. 169-171
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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

- Observation - Oral questions - Written assignments

Mixtures, Elements and Compounds

Structure of the atom - Protons, electrons and neutrons

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

- Identify the subatomic particles in an atom
- Explain the location and electrical charges of subatomic particles
- Show interest in the study of atoms

- Discuss the composition of an atom
- Locate the components within the atom
- Discuss the electrical charges of protons, electrons and neutrons

How small are atoms and are they divisible?

- KLB Integrated Science pg. 1
- Internet access
- Reference books
- Charts showing atomic structure

- Observation - Oral questions - Written tests

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

- Written assignments - Observation - Oral questions

Mixtures, Elements and Compounds

Structure of the atom - Atomic number and mass number
Structure of the atom - Electron arrangement

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

- Determine the mass number of elements
- Work out the number of neutrons in various elements
- Appreciate the relationship between atomic number and mass number

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

- Work collaboratively to determine mass numbers
- Complete a table showing atomic numbers, number of neutrons and mass numbers
- Discuss the relationship between atomic number and mass number
- Search for information about electron arrangement
- Discuss energy levels and their electron capacities
- Practice writing electron arrangements

How is the mass number of an element calculated?
How are electrons arranged in an atom?

- KLB Integrated Science pg. 3
- Periodic table
- Internet access
- Reference books
- KLB Integrated Science pg. 5
- Internet access
- Reference books
- Periodic table

- Observation - Oral questions - Written questions
- 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

- Observation - Peer assessment - Drawing skills assessment

Mixtures, Elements and Compounds

Structure of the atom - Energy level diagrams

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

- Draw electron dot or cross diagrams for various elements
- Label the energy levels correctly
- Appreciate the importance of energy level diagrams

- Draw dot or cross diagrams for elements
- Compare diagrams with charts
- Display completed diagrams for assessment

What information can be derived from energy level diagrams?

- KLB Integrated Science pg. 7
- Charts
- Manila paper
- Colored pencils

- Observation - Portfolio assessment - Peer evaluation

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 - Metals and non-metals
Structure of the atom - Model the atomic structure

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

- Identify the features of metals based on electron arrangement
- Identify the features of non-metals based on electron arrangement
- Distinguish metals from non-metals

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

- Study electron arrangements of metals and non-metals
- Identify the pattern in electron arrangements
- Draw conclusions on classification
- Brainstorm and visualize atomic models
- Identify materials needed for modeling
- Discuss and refine steps for construction

What makes an element a metal or a non-metal?
How can we model the structure of selected elements?

- KLB Integrated Science pg. 8
- Internet access
- Reference books
- Periodic table
- KLB Integrated Science pg. 9
- Locally available materials
- Reference books
- Internet access

- Observation - Oral questions - Written assignments
- Observation - Oral questions - Peer assessment

Mixtures, Elements and Compounds

Structure of the atom - Model the atomic structure

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

- Model the atomic structure of selected elements
- Label different parts of the atomic models
- Show creativity in modeling atomic structures

- Construct models of atomic structures
- Label different parts of the models
- Present models to class for assessment

What materials can be used to create effective atomic models?

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

- Observation - Project assessment - Peer evaluation

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