Ecosystems and biomes
Learn Ecosystems and biomes for Years 7–9 pupils (ages 11–14). Free practice questions, lessons and worked examples — aligned to the UK National Curriculum.
What you'll learn
- 1
An ecosystem is living things interacting with their non-living environment. A biome is a very large ecosystem such as tropical rainforest or desert.
- 2
Rainforests lie near the Equator where it is hot and wet all year. Hot deserts sit around 30° north and south, where descending dry air suppresses rainfall.
- 3
Where are tropical rainforests found?
- 4
Rainforest soil is surprisingly poor. Nutrients are held in the vegetation and cycled rapidly, so clearing the trees removes most of the fertility.
- 5
Deforestation causes: logging, cattle ranching, mining, road building. Effects: biodiversity loss, soil erosion, and carbon released into the atmosphere.
- 6
Why is cleared rainforest land often unproductive?
- 7
What does biodiversity mean?
Practise Ecosystems and biomes with Whizlo
Free AI-tutored lessons, unlimited practice questions, and progress tracking for ages 11–14. Aligned to the UK National Curriculum.