2. We Are Learning To…
…use words correctly to describe
feeding relationships between
animals and plants.
…show how energy flows through food
chains
…interlink food chains to form food
webs
3. What I’m Looking For:
1. Construct your own food chain
2. Spot at least two food chains from a
food web
3. Point arrows in the right direction in
a food chain
4. Construct a food web in a group
5. Be able to answer quiz at the end
6. Your turn
• In pairs write down two food chains.
• Perhaps one of the organisms in it could
be you!
• (Hopefully not being eaten by a wolf )
• Draw in arrows pointing from the thing
being eaten to the thing eating it.
Pondweed Insect Kingfisher
larvae
Minnow
(little fish)
7. Energy Flow
Which way does the energy flow?
• Which way do the sun’s rays go?
What is it used for?
10. Food chain: a flow of energy in a habitat
Sun allows grass to grow
Grass is eaten by
Rabbits which are eaten by
Owls
11. Food chain: a flow of energy in a habitat
Grass is eaten by
Rabbits which are eaten by
Owls
12. Food chain: a flow of energy in a habitat
Grass is eaten by
Rabbits which are eaten by
Owls
Grass Rabbit
Owl
The arrow means ‘is eaten by’ and
always goes towards the consumer
13. Except that Owls also eat
Shrews as well as Rabbits
Rabbit
Owl
Shrew
Grass
14. Shrews also eat other plant
matter as well as Grass
Rabbit
Owl
Plant Shrew
matter
Grass
15. Shrews also have to watch out
for weasels that might eat them
Rabbit
Owl
Plant Shrew
matter
Weasel
Grass
16. And snails and worms eat the
plant matter too.
Rabbit
Owl
Plant Shrew
matter
Worm Snail
Weasel
Grass
17. Food Chain to Food Web
Let’s complete ours with
hedgehogs (that eat snails & worms) and
foxes (that eat pretty much anything that
moves!)
19. How many food chains are there now?
Rabbit
Owl
Plant Shrew
matter
Worm Snail
Weasel
Grass
Hedgehog Fox
Write down as many as you can in 3 minutes!
20. Plant
matter Shrew Fox
Grass Shrew Weasel Fox
Shrew Plant
matter
Shrew Owl
Worm
Snail
Weasel
Grass
Hedgehog
Plant
matter
Plant
matter
Owl
Grass
Rabbit
Hedgehog
Fox
Grass Rabbit Fox
Fox
Fox
21. Food Chain to Food Web
The original food chain has expanded into a
food web with 8 interlinked chains as more
organisms have been added
Food webs are normal in natural habitats as
there is nearly always more than one
organism that eats something else.
22. Some Key Words
• Producer
• Consumer
–Herbivore
–Carnivore
–Omnivore
24. Your turn
• In groups of four use the pictures in the
envelopes to make your own food webs.
• Start off with individual food chains
• Then try to link them together to make a
food web.
• Draw in some arrows – the right way
round!
26. What We Have Done:
1. Constructed food chains
2. Spotted at least two food chains
from a food web
3. Point arrows in the right direction in
a food chain
4. Constructed a food web in a group
5. Answered quiz at the end
27.
28. Woodland
Pond
Hedgerow
PRODUCERS HERBIVORES CARNIVORES
Oak
Grass
Small plants
Dead material
Plankton
Pondweed
Dead material
Hawthorn
Dead material
Caterpillar
Mouse
Woodlouse
Insect larvae
Snail
Greenfly
Woodlouse
Small bird
Owl
Snake
Beetles
Spiders
Fish
Hawk
Weasel
