The document describes an activity to teach students about food webs. Students are given cards representing different organisms in an ecosystem and use string to connect them and form interlinking food chains. A food web is created as students stand in a circle connected by the string based on where each organism falls in the food chain, such as a plant being connected to an insect pest feeding on it. Sample cards are provided listing organisms like the sun, plants, insects, birds, and decomposers for students to use to build their food web.

1. 038 FOOD WEB
The transfer of energy from a source in plants through a series of organisms
is called the food chain and their interlinking pattern is called the food web.
MATERIALS REQUIRED
Chart boards or old cards from packaging material
Pens or coloured paints
Ball of thread (thick thread would be better)
Cut the boards into any convenient sizes and with the help of the class
prepare food chains and link them as food web. A suggested food web
is given. Once the cards are ready, make children stand in a circle, give them
the cards at random. Tie string to the index finger of the student who gets the
“sun” card…. motivate the students to give the next step and keep winding
the same thread on the index fingers of the food web… finally a web is
formed by the thread (a sample picture is attached)

2. Sample cards
please encourage students to draw and colour the cards
1. SUN 2. PLANT 3. LITTER 4. SOIL
ORGANISMS
5. MANURE
(GO TO PLANT)
CARD 2
6. INSECT PESTS
(eg: APHIDS)
7. PREDATOR
INSECTS
(eg: PRAYING
MANTIDS)
8. BIRDS
9. BIRD
DROPPINGS
(EXCRETA)
10.
MICROORGANISMS
(GO TO PLANT)
CARD 2
11. RODENTS 12. SNAKE

3. 17.COMPOST
(GO TO PLANT)
CARD 2
18. GRAINS 19.
HUMANBEINGS
THIS IS
ONLY A
SAMPLE…
13. VULTURE
14.
DECOMPOSERS
(GO TO PLANT)
CARD 2
15. CATTLE 16. DUNG

4. SUN
PLANT
SAMPLE
FOOD WEB
LITTER
SNAKE
SOIL ORGANISMS
PREDATOR INSECTS
DECOMPOSERS
MANURE
INSECT PESTS
BIRDS
VULTURE
RODENTS BIRD DROPPINGS
CATTLE
DUNG
COMPOST
GRAINS
HUMANBEINGS
MICROORGANISMS

5. ERF

6. ERF