Intermediate
60 mins
Teacher/Student led
+100 XP
Teacher-led from the board. Pupils do not need a device, but can follow on one.

Food Chains, Webs and Interdependence

Explore how energy flows through Irish habitats by building food chains from producers to consumers using cards. Combine these into food webs and discuss what happens when a link is removed to see how living things depend on each other.

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    Flow builder
    Flow builder

    1 - Getting Started ~5 mins

    The hedgerow animals and plant the whole lesson is built aroundA fox needs a rabbit. A rabbit needs grass. Grass needs the sun. What do you think happens if the grass disappears?

    Talk with the person beside you for thirty seconds, then we will hear a few ideas.

    2 - Energy on the Move ~7 mins

    Energy path from sun to plant to rabbit to fox, arrows includedEvery meal in the hedgerow starts with sunlight. Plants catch that energy first. Then a rabbit eats the plant, and a fox eats the rabbit: the energy has moved along a path we call a food chain.

    We call the plant a producer and the animals consumers. The arrows show which way the energy travels.

    3 - Build an Irish Food Chain ~5 mins

    Now we build an Irish food chain together on the board. The cards ready to place are sun, grass, rabbit and fox, but not yet in order.

    Call out which card should come first, then next. Which way should the arrows face? Why must a plant come near the start?

    Remember: the sun is the energy source, not a living producer. The first living thing in the chain is the plant.

    An Irish food chain

    4 - Build Another Chain on the Board ~5 mins

    Now we build a different Irish chain together. The cards on the board are sun, oak leaves, caterpillar and robin, but not yet in order.

    Call out which card should come first, then next, until the energy path is right. Remember: arrows show where the energy goes. The sun is the energy source; the first living producer is the plant.

    Build another Irish food chain

    Pupil practice · Investigation Journal
    Module 1 · Living Things: Ecosystems, Biodiversity and a Sustainability Action
    Lesson 2 · Food Chains, Webs and Interdependence
    Download Investigation Journal sheet (PDF)
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