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18 August 2026

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pptx, 140.67 MB

Edexcel IGCSE Biology 9–1 Unit 4: Ecology & the Environment – 11 Complete Lessons (140+ Slides)
Complete, exam-focused teaching resource covering Ecology, Feeding Relationships, Cycles and Human Influences on the Environment for Pearson Edexcel International GCSE Biology (9–1). Covers specification points 4.1–4.18B, including quadrat practical work, energy transfer, carbon and nitrogen cycles, pollution, eutrophication and deforestation.

Designed for Separate Biology
Fully suitable for Double Award Science
Separate Biology / Paper 2 content is clearly labelled throughout
140+ teaching slides
11 fully planned lessons
Fully prepared and ready to teach

Lessons Covered
Lesson 1: Ecosystems & Biodiversity
Population, community, habitat and ecosystem
Biodiversity
Biotic and abiotic factors

Lessons 2–3: Core Practical – Using Quadrats
Sampling populations using quadrats
Random sampling and estimating population size
Investigating distribution and biodiversity

Lesson 4: Trophic Levels, Food Chains & Food Webs
Producers, consumers and decomposers
Trophic levels and energy transfer
Interpreting changes in food webs

Lesson 5: Pyramids of Numbers & Biomass
Constructing and interpreting ecological pyramids
Comparing pyramids of numbers and biomass

Lesson 6: Energy Transfer
Energy and substances through food chains
The 10% rule
Calculating percentage energy transfer

Lesson 7: Carbon Cycle
Photosynthesis, respiration, decomposition and combustion
Movement of carbon through ecosystems

Lesson 8: Nitrogen Cycle
Nitrogen fixation, nitrification and denitrification
Role of decomposers and bacteria

Lessons 9–10: Pollution, Greenhouse Effect & Climate Change
Greenhouse gases and the enhanced greenhouse effect
Global warming and its consequences
Carbon monoxide, sulfur dioxide and acid rain

Lesson 11: Water Pollution & Deforestation
Sewage and eutrophication
Fertiliser leaching
Deforestation, soil erosion and disruption of the carbon and water cycles

Get this resource as part of a bundle and save up to 28%

A bundle is a package of resources grouped together to teach a particular topic, or a series of lessons, in one place.

Bundle

Edexcel IGCSE Biology Complete Course bundle mega pack 110+ lessons

110+ COMPLETE LESSONS | FULL COURSE | DOUBLE AWARD & SEPARATE BIOLOGY A comprehensive, ready-to-teach collection of 110+ lessons covering the Pearson Edexcel International GCSE Biology (9–1) course. This complete course bundle provides a structured teaching sequence across the entire Biology specification, from the characteristics of living organisms and cell biology through to genetics, ecology and biotechnology. The resources are designed for Separate Biology and are fully suitable for students studying International GCSE Science (Double Award). Separate Biology/Paper 2-only content is clearly identified, making it straightforward to use the same resources with both courses. Units Covered Unit 1 – The Nature and Variety of Living Organisms Characteristics of living organisms, classification and the major groups of organisms. Unit 2 – Structures and Functions in Living Organisms Cells, biological molecules, enzymes, movement of substances, nutrition, photosynthesis, gas exchange, respiration, transport, excretion, coordination and response. Unit 3 – Reproduction and Inheritance Sexual and asexual reproduction, DNA, genes and chromosomes, protein synthesis, mitosis and meiosis, inheritance, variation, mutation, natural selection and evolution. Unit 4 – Ecology and the Environment Populations, ecosystems, quadrats, biodiversity, feeding relationships, energy transfer, nutrient cycles, pollution, greenhouse gases, eutrophication and deforestation. Unit 5 – Use of Biological Resources Crop production, microorganisms and food production, fermenters, yeast, fish farming, selective breeding, genetic modification, insulin production and cloning. What’s Included 110+ complete, classroom-ready lessons Extensive PowerPoint/slide-based teaching resources Content closely matched to the Pearson Edexcel International GCSE Biology specification Recall and retrieval starters Clear student-friendly explanations and diagrams Core practicals and investigative activities Practical methods, variables and experimental analysis Regular consolidation activities Sequencing, matching, word-fill and correct-the-mistake tasks Exam-style questions throughout Extended-response practice Answers and mark schemes Key terminology and definitions Opportunities for independent and collaborative learning Lesson Design Features Lessons follow a clear and consistent structure: Recall → Teach → Apply → Consolidate → Exam Practice New biological processes are broken down into manageable stages with key vocabulary highlighted throughout. Regular retrieval links new learning to previous topics, helping students build secure knowledge across the course. Practical lessons develop both practical knowledge and the skills needed to answer examination questions, including variables, controls, accuracy, reliability, data analysis and evaluation. Exam-style questions are incorporated throughout rather than being reserved solely for revision, giving students regular opportunities to apply their knowledge in an Edexcel-style context. This Resource This bundle is ideal for teachers looking for a complete International GCSE Biology course rather than purchasing individual topics or lessons separately. Suitable for: Pearson Edexcel International GCSE Biology (9–1) International GCSE Science (Double Award) Full-course teaching Departmental schemes of work Revision and intervention Cover and catch-up lessons Supporting non-specialist teachers Independent student revision With 110+ lessons covering the complete Biology course, this bundle provides a coherent set of resources that can be used from the beginning of the course through to final examination preparation.

£75.00

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