Environmental Change on the Great Barrier Reef
Download an editable Year 10 geography slideshow on environmental change on the Great Barrier Reef, covering causes, effects, stakeholders and management responses.

- Subject
- Geography
- Year group
- Year 10
- Curriculum topic
- Environmental change and management: the Great Barrier Reef
- Editable download
- PPTX
About this resource
Built for a clear, classroom-ready lesson.
This complete lesson takes students from why the reef matters through to evaluating how well different management responses deal with the problem. Ocean warming, water quality and crown-of-thorns outbreaks are introduced as key pressures, coral bleaching is explained step by step, and the effects are separated into environmental, social and economic.
Use the slideshow as supplied or edit the PowerPoint to focus on a different environment or case study. A stakeholder discussion, a key terms activity and an evaluation task each have answer slides, so you can build towards a full case study response.
Teaching notes
The stakeholder discussion is the heart of this lesson. Students tend to argue for a single group, so the answer slide deliberately lands on good management needing all of them, which sets up the evaluation task that follows.
The model answer argues that climate action is the most effective response because it addresses the largest cause, while acknowledging that it requires action well beyond the reef and takes time to show results. That "strength plus limit" structure is what senior geography marking rewards, so it's worth naming explicitly before students write.
Traditional Owners and Sea Country are referred to throughout, and the slides treat cultural connection as a form of long-term management rather than an add-on. If you're teaching this alongside a local environment, the same causes, effects and management framework transfers directly.
Learning objectives
- Explain the causes of environmental change on the Great Barrier Reef.
- Describe the environmental, social and economic effects of reef damage.
- Evaluate management responses and identify the limits of each.
What’s included
- 18 classroom-ready slides
- Causes and effects compared side by side
- A four-stage explanation of coral bleaching
- Stakeholder perspectives including Traditional Owners
- Key terms and recall activities with answer slides
- An evaluation task with a model answer
Example PDF
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