The human impact on ecosystems
I can explain how human activity changes ecosystems and reduces biodiversity.
- Year 9
The human impact on ecosystems
I can explain how human activity changes ecosystems and reduces biodiversity.
Lesson details
Key learning points
- Deforestation reduces habitats and threatens species survival.
- Pollution from agriculture and industry harms ecosystems.
- Climate change alters ecosystems and species distributions.
- Invasive species introduced by humans disrupt native ecosystems.
- Biodiversity loss reduces ecosystem resilience and services.
Keywords
Deforestation - the complete removal of trees
Invasive species - plants, animals, or other organisms that are brought into a new environment, usually by humans, where they don't naturally belong
Biodiversity - all the living things in an ecosystem or area
Ecosystem - a natural environment where the plants and animals interact within it
Common misconception
Invasive species are always introduced by humans intentionally.
While some introductions are intentional (e.g. for pest control or landscaping), many invasive species are introduced accidentally, such as via ballast water in ships or hitchhiking on imported goods.
Equipment
Licence
Lesson video
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Prior knowledge starter quiz
6 Questions
Q1.What does the term "Anthropocene" refer to?
Q2.Which Earth system includes oceans, rivers, lakes, and glaciers?
Q3.Which sphere includes all plants, animals, and other living things?
Q4.What evidence shows a recent, sharp rise in atmospheric CO₂ levels?
Q5.What can be seen from satellites that provides evidence of the Anthropocene?
Q6.Which of these is not part of the geosphere?
Assessment exit quiz
5 Questions
Q1.Match the keywords to their definitions.
