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20 October 2014
Schools  >> All subjects for ages 4 - 11 years Science Clips
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Science topics ages 10 - 11
Interdependence and adaptation

Curriculum relevance | Online lesson plan
Offline lesson plan | Worksheet | Activity

Online lesson plan


Know that animals and plants in a local habitat are interdependent

Know that a food chain starts with a plant (a producer)

Know that food webs can be drawn to represent the feeding relationships in a habitat

National Curriculum

England: Key Stage 2, Science, Sc2 5d, 5e

Wales: Key Stage 2, Life processes and living things 4.3, 4.4

Northern Ireland: Key Stage 2, Living things, Animals and plants, i

Scotland: 5-14 Guidelines, Science, Interaction of living things with their environment, Level B, Level E

Resources required

Online activity from Science Clips website: Interdependence and adaptation

Picture cards of pear tree leaves, caterpillar, blue tit, cat

Teaching activities

Remind children of earlier work on food chains in Year 4. Show the picture cards of pear tree leaves, caterpillar, blue tit and cat. Draw a food chain reminding children that the arrows mean ‘is eaten by’ and represents a transfer of energy and nutrients. Which is the producer in the chain? Which are the consumers? Ensure children understand these terms.

Explain that in a habitat, animals and plants are interdependent (they need each other), and that the feeding relationships between the producers and consumers is better shown in a food web rather than a chain. Tell the children that you are going to construct a food web for part of a pear tree habitat.

Display the following information on the interactive whiteboard: Aphid (eats pear tree sap), Caterpillar (eats pear tree leaves), blue tit (eats pears, caterpillars and aphids), ladybird (eats aphids). Use the information to construct a food web with the help of the class. Identify producer, consumers, herbivores, carnivores and predators. Which animal has no predators in this web?

Bring up the online activity on the whiteboard. Show children how to collect a plant or animal and how to navigate to the Sorter screens. Arrange the children in pairs or groups, with a computer for each group. Ask children to work through the online activity, following the tasks written (and spoken) at the top of the screen.

As a class on the interactive whiteboard, review the activity, collecting the plants and animals and arranging them in the food web. The children have been thinking about how the animals need plants and other animals for food. But you originally used the word ‘interdependent’, which means they need each other. How do the plants need the animals (seed dispersal)?


Ask children to complete the online quiz.

Suggested homework

Ask children to construct a food web for another habitat, using either books or making observations in a local park or garden.


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