Description
A ready-to-teach lesson pack introducing KS3/ GCSE students to ecosystems, nutrient cycles and the impact of human activity on the environment. The lessons help students understand how energy and nutrients move through ecosystems and how human actions can disrupt these natural processes.

This resource includes fully editable PowerPoint lessons that build understanding from food chains and energy transfer through to nutrient cycles and environmental monitoring.

The sequence develops students’ thinking from how ecosystems function → how nutrients are recycled → how human activities affect environmental balance.

What’s included
• 4 fully editable PowerPoint lessons
• Starter retrieval questions
• Key vocabulary and clear explanations
• Knowledge-check activities with answers
• Food web and ecosystem tasks
• Opportunities for discussion and ecological analysis

Topics covered
• Food chains, food webs and trophic levels
• Energy transfer through ecosystems
• Ecological pyramids
• Decomposers and nutrient recycling
• The carbon cycle
• The nitrogen cycle
• Human impact on ecosystems
• Eutrophication and pollution
• Bioaccumulation and indicator species

Suitable for
• KS3 Science
• KS3 Biology
• GCSE Biology

Ideal for teachers looking for clear, structured lessons introducing ecosystems, nutrient cycles and environmental impacts.