Food web · खाद्य जाल

Many food chains joined together. Follow the arrows — who eats whom?

Food web games

What is a food web? खाद्य जाल क्या है?

A food chain shows one path of who eats whom: grass → rabbit → eagle. But a rabbit is eaten by snakes and eagles, and a grasshopper is eaten by frogs and sparrows. When all the food chains of a place are joined together, we get a food web (खाद्य जाल).

Level	Who	In this web
Producers उत्पादक	Green plants — make their own food	Grass
Primary consumers प्राथमिक उपभोक्ता	Herbivores — eat plants	Grasshopper, rabbit, deer
Secondary and higher consumers	Carnivores — eat other animals	Frog, sparrow, snake, eagle, tiger
Decomposers अपघटक	Bacteria and fungi — break down dead matter	(in the soil, everywhere)

Arrows point from the food to the eater — the way energy flows. Only about 10% of the energy at one level reaches the next (the 10 percent law), so food chains are usually short — 3 to 5 steps.

Why it matters: in a web, if one animal disappears the others can often eat something else — but every animal still depends on the producers. Also see the food chain game and ecosystem.

Goes with NCERT Science Class 7 and Class 10 (Our Environment).

Print

A one-page chart to stick on the wall, and a worksheet to practise.

Food web

Producers → primary consumers → secondary consumers. Arrows: food → eater. About 10% of energy passes on.

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Food web — worksheet

Name: ____________________ Class: ______ Date: __________

1. In the food web above, name the producer: ____________

2. Write two food chains from the web: ____________________ / ____________________

3. Who eats the grasshopper? ____________

4. What would happen if all the snakes died? ____________________________

5. Name two decomposers: ____________ ____________

6. Draw a food web of 5 living things from your area:

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