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New
New
Year 10
AQA

Nutrient cycling and biodiversity in tropical rainforests

I can understand that tropical rainforests have a high rate of nutrient cycling and support high levels of biodiversity and complex food webs.

icon-background-square
New
New
Year 10
AQA

Nutrient cycling and biodiversity in tropical rainforests

I can understand that tropical rainforests have a high rate of nutrient cycling and support high levels of biodiversity and complex food webs.

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Lesson details

Key learning points

  1. Tropical rainforests support high levels of biodiversity.
  2. Tropical rainforests have high rates of nutrient cycling.
  3. Tropical rainforests support complex food webs.

Keywords

  • Biodiversity - a measure of how many different species live in an ecosystem

  • Nutrients - chemical substances found in all biotic features which are important for survival

  • Interdependent - when two or more biotic features, like plants or animals, depend or rely on each other to survive

Common misconception

Tropical rainforest soils must be nutrient-rich because the forests are so full of abundant, fast-growing vegetation.

Tropical rainforest soils are nutrient-poor. Nutrients cycle rapidly out of the soil due to them being taken up rapidly by biomass, while the heavy rainfall also washes them out of the soil through leaching and runoff.


To help you plan your year 10 geography lesson on: Nutrient cycling and biodiversity in tropical rainforests, download all teaching resources for free and adapt to suit your pupils' needs...

Use GIS to map nutrient flows by layering data such as soil quality, rainfall, and vegetation density, helping students analyse how nutrients move in ecosystems. VR can simulate nutrient cycling, showing processes like decomposition and absorption.
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This content is © Oak National Academy Limited (2025), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).

Lesson video

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6 Questions

Q1.
Match the terms to their correct descriptions:
Correct Answer:biome,A large geographical area with distinct climate, vegetation & animals.
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A large geographical area with distinct climate, vegetation & animals.

Correct Answer:ecosystem,The interaction of living and non-living things in a particular area.
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The interaction of living and non-living things in a particular area.

Correct Answer:habitat,The specific environment where a species lives.
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The specific environment where a species lives.

Q2.
Tropical rainforests have a specific climate which is warm with high rainfall all year. How do we define climate?
Short-term conditions of temperature and precipitation in an area
Correct answer: The long-term patterns of temperature, humidity, and precipitation in a region
The daily weather conditions in a specific location
The geographical features that determine the weather in a region
Q3.
What does biodiversity mean?
The total number of species in a specific area at a given time
Correct answer: The variety and variability of life forms in an ecosystem or biome
The physical environment that supports different species in an ecosystem
The process by which species evolve over time to adapt to their surroundings
Q4.
Match the stages of a food web with their definitions.
Correct Answer:Producers,plants converting sunlight into energy through photosynthesis
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plants converting sunlight into energy through photosynthesis

Correct Answer:Consumers,animals depend on plants or other animals for food
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animals depend on plants or other animals for food

Correct Answer:Decomposers,fungi & bacteria breaking down dead matter recycling nutrients back
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fungi & bacteria breaking down dead matter recycling nutrients back

Q5.
What impact does deforestation have on ecosystems?
Correct answer: It disrupts habitats and reduces biodiversity
It enhances nutrient cycling
It increases the number of trees
Q6.
What is nutrient cycling?
The flow of energy through a food chain
Correct answer: The movement of nutrients through an ecosystem
The process of photosynthesis in plants

4 Questions

Q1.
Match the lesson's keywords with their definitions.
Correct Answer:biodiversity,a measure of how many different species live in an ecosystem
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a measure of how many different species live in an ecosystem

Correct Answer:nutrients,chemical substances found in all biotic features, vital for survival
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chemical substances found in all biotic features, vital for survival

Correct Answer:interdependent,when two or more biotic features rely on each other to survive
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when two or more biotic features rely on each other to survive

Q2.
The soil store in the tropical rainforest has the least amount of nutrients, it doesn't hold nutrients for long making it nutrient- .
Correct Answer: poor
Q3.
Put the nutrient cycle into the correct order.
1 - Nutrients enter the ecosystem through weathering and from the atmosphere
2 - Plants take up nutrients from the soil and use them to grow
3 - Animals obtain nutrients eating plants or other animals that have eaten plants
4 - Plants & animals die, decomposers break down their tissues, releasing nutrients
Q4.
What is one consequence of deforestation on biodiversity?
It increases biodiversity
Correct answer: It reduces biodiversity and disrupts ecosystems
It stabilises nutrient cycles