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AQA (KS4)

KS3 & KS4 science curriculum

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Science
Year 8

Variation (differences within species)

5 lessons

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  • BQ04 Biology: Why are there similarities and differences between living things?

Description

This unit examines variation within species, both continuous and discontinuous, using measurements and graphical representations. It also emphasises objectivity, accuracy, precision, and repeatability in investigations, the use of appropriate techniques, and the effective presentation of data.

This unit builds on pupils’ prior learning from Species and classification (differences between species), where they examined how species differ and the role of classification. It deepens their understanding by exploring variations within species, highlighting how individual differences contribute to diversity. This prepares pupils for the next unit, Adaptations, competition, natural selection and evolution, where they will apply their knowledge to understand how variation drives adaptation and evolution, shaping how species survive and thrive in their environments.

  1. Reproduction and variation
  2. Variation within species
  3. Continuous and discontinuous variation: practical
  4. Discontinuous variation: data handling and analysis
  5. Continuous variation: data handling and analysis

  • [Y6] Living things produce offspring of the same kind, but normally offspring vary and are not identical to their parents.
  • Impacts of diet, exercise and lifestyle on the body.
  • Heredity as the process by which genetic information is transmitted from one generation to the next.
  • A simple model of chromosomes, genes and DNA in heredity.
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