Explore ecosystems, food chains, and nutrient cycles, and understand how living and non-living things interact.
An ecosystem includes all living things in an area along with their physical environment. A food chain shows how energy flows from one organism to another.
Write a simple food chain: grass, grasshopper, frog, snake.
Grass → Grasshopper → Frog → Snake
What are organisms called that produce their own food, forming the base of most food chains?
Producers
Nutrients like carbon and nitrogen cycle continuously through ecosystems. Biodiversity — the variety of life in an ecosystem — helps keep it stable and resilient.
Why is biodiversity important for an ecosystem's stability?
A greater variety of species means the ecosystem can better withstand changes or disturbances, since it doesn't rely on just one or two species
What role do decomposers play in nutrient cycles?
They break down dead organisms, releasing nutrients back into the soil for plants to use again
1. What is an ecosystem?
2. What is a food chain?
3. What are producers?
4. Why is biodiversity important?
5. What role do decomposers play in an ecosystem?
Great work finishing every chapter. Onwards to new challenges!
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