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Activity 13.1 — Food Chain & Food Web
NCERT Activity 13.1: Build a food chain from producers to top predators, then connect multiple chains to form a food web. Observe how energy flows through trophic levels.
How To Perform
1
Add Producers
Start with grass — the producer that captures solar energy.
2
Add Primary Consumers
Grasshoppers eat grass (herbivores at trophic level 2).
3
Add Secondary Consumers
Frogs eat grasshoppers (carnivores at trophic level 3).
4
Add Tertiary Consumers
Snakes eat frogs, eagles eat snakes — top predators.
5
Add Decomposers
Fungi and bacteria break down dead matter, recycling nutrients.
6
Build the Food Web
Connect multiple food chains into a complex food web.
7
Check Understanding
Why does energy decrease at each trophic level?