| Lesson Plan |
| Grade: |
Date: 25/02/2026 |
| Subject: Physics |
| Lesson Topic: Describe how useful energy may be obtained, or electrical power generated, from: (a) chemical energy stored in fossil fuels (b) chemical energy stored in biofuels (c) water, including the energy stored in waves, in tides and in water behind hydroelec |
Learning Objective/s:
- Describe the step‑by‑step conversion of chemical energy in fossil fuels into electrical power.
- Explain how biofuels are produced and used for electricity and compare their environmental impact to fossil fuels.
- Identify the principles behind wave, tidal and hydroelectric energy and outline their conversion processes.
- Compare the sustainability and efficiency of these energy resources.
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Materials Needed:
- Projector and screen
- PowerPoint slides with diagrams of power stations
- Handout worksheet with comparison tables
- Short video clips of fossil‑fuel, biofuel and hydro plants
- Sample images of coal, biofuel bottles, and turbine models
- Calculator for energy‑conversion calculations
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Introduction:
Begin with the question “Where does the electricity that powers our devices actually come from?” Students recall prior learning about energy, heat and electricity. Explain that today they will trace how three different resources – fossil fuels, biofuels and water – are turned into usable power and what criteria will be used to judge each method.
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Lesson Structure:
- Do‑now (5 min): Quick quiz on forms of energy and basic conversion terms.
- Mini‑lecture (10 min): Fossil‑fuel power cycle – combustion, boiler, steam turbine, generator (with diagram).
- Group activity (15 min): Biofuel production steps and environmental impact; complete worksheet comparison with fossil fuels.
- Video & discussion (10 min): Wave, tidal and hydroelectric systems; students label key components on a schematic.
- Synthesis (10 min): Whole‑class creation of a comparison table (efficiency, renewability, site constraints).
- Exit ticket (5 min): One‑sentence summary of which resource they consider most sustainable and why.
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Conclusion:
Recap the main conversion pathways and highlight the common role of boilers, turbines and generators. Collect exit tickets to gauge understanding and assign a homework task: research a local renewable‑energy project and prepare a short poster explaining its conversion process.
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