Science at key stage 3 (Year 7)
Unit 7C: Environment and feeding relationships
Section 11: Reviewing work
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Objectives |
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- that organisms in a habitat compete for resources from the environment
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Activities |
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Outcomes |
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Children: |
- Construct a paper and wool model of a food web identified in the previous activity. Remove one animal species from the web,
eg by cutting the strands of wool holding it in place. Ask the pupils what will happen to the animals that feed on that species. Challenge pupils to identify any other effects on the food web.
- Extend by providing pupils with a food web in which at least one animal is a seasonal visitor and asking them to identify differences in the food web in other seasons.
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- predict and explain the consequences of changes in the organisms making up a food web
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Points to note |
- If the food webs generated earlier are very complex, it may be better to simplify them for this activity.
- As an alternative, pupils could be given copies of a food web generated earlier, with an animal blanked out.
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This unit is divided into sections. Each section contains a sequence of
activities with related objectives and outcomes. You can view this unit by
moving through the sections or print/download the whole unit.
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