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Science
Training &
Education
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The slide show was designed and produced for the NMA by STEP, the
Science Training & Education Partnership
www.step-up-to-science.com
Food chains and food webs ‘who eats whom’
Plants and animals living
in a habitat can be linked
together
Food chains show how
food passes from one
living thing to another
All food chains start
with a Plant
Plants can make their
own food, using sunlight
FOX
RABBIT
An animal that eats
other animals
GRASS
An animal that
eats plants
A plant - makes its
own food
The arrows
show the
food chain
Food chains work in the
same way in the sea ...
… but the plants and
animals look a bit
different!
FISH
COPEPOD
ALGAE
Out in the ocean, there is
no grass or trees
An animal that eats
other animals
The plants are tiny ALGAE
animal
- you needAatiny
microscope
to
that eats plants
see them
Microscopic plants make their own food
This is a food
chain in the ocean
This food chain
wouldn’t stop here ...
In most habitats, there
are several food chains
These are linked
together to form a
Food Web
Food webs can be quite
complicated
Here is one from the
ocean around Antarctica
Seals eat squid
Squid eatand
fishfish
and krill
Fish eat krill and
copepods
A simple food chain
whale eats krill eats
algae
Copepods also eat algae,
and are eaten by krill
This food web contains 7 types of living things, and 9 food chains
The shortest food chain
in the Antarctic food
web has two links
The longest food chain
in the Antarctic food
web has five links
You have seen that -
A food chain links
plants and animals in
a habitat
All food chains start
with a plant
You have seen that -
Food chains on land
and in the ocean are
similar
Food chains can be
linked to form food
webs
NOTES for USERS
The material in this slide show is designed to support the teaching of science at Key Stage 1
A full description of the slide show, and linked activities for students, can be found on the
National Marine Aquarium (NMA) web-site:
www.national-aquarium.co.uk
Teachers are free to amend the slide show in whatever way they feel fit, or to use slides in other
contexts. However, please note that neither the NMA nor the designers will accept
responsibility for modifications, and original material remains copyright of the NMA
Individual images used in the slides are copyright of NMA or STEP,
except where acknowledged separately
The slides have been set up to display as A4 landscape format. If they are incorporated into
other slide sequences with different display settings, change in aspect ratio and text location
will occur
The slide sequence contains the minimum of effects and transitions. However, there are some
automated animations, and teachers will wish to make sure that they are familiar with the
sequence before use in class
Use the PowerPoint notes viewer to obtain additional information for some slides
Science
Training &
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Partnership