GCSE Biology Topic 7: Decay and Biogas
In this GCSE Biology Topic 7: Decay and Biogas lesson, pupils explain the factors that influence the rate of decay, outline how decomposers contribute to the carbon cycle, and discuss the production and uses of biogas.
The slides include extension questions, and students can choose from a variety of different tasks.
This lesson includes:
- Title slide with learning objectives
- A starter activity
- Group reading (literacy)
- Task boxes
- Discussion exercise
- Matching task
- Comprehension questions
- Note taking exercise
- Answer slides included for self-assessment
- Suitable for remote, online, distance learning
- Suitable for supply teaching and home learning. This activity is straightforward and requires no specialist expertise. Discussion/extension answers are in the ppt notes.
A supplementary resource designed to support self-directed learning, homework and independent projects is available here https://www.tes.com/teaching-resource/decay-and-biogas-gcse-biology-aqa-12646900
All content, diagrams and photos © Troilo Science / Febo Learning unless otherwise stated.
Next Lesson: Global Warming

In this lesson pupils will state the major greenhouse gases and where they come from, explain why greenhouse gases cause climate change and describe the effects of climate change.
Lessons for Key Stage 4 GCSE Biology Topic 7 Ecology
- Competition
- Abiotic and Biotic Factors
- Food Chains and Trophic Levels
- Environmental Change
- Quadrats Practical Revision
- Water Cycle
- Carbon Cycle
- Decay and Biogas
- Global Warming
- Deforestation and Land Use
- Protecting Ecosystems
- Pyramids of Biomass and Biomass Transfer
- Food Security and Farming
- Biotechnology
























