LNF Cymru Literacy and numeracy for Wales

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GCSE The Sciences

The Sciences (Double Award) asks learners to research and evaluate scientific information, including how the media shapes public views, to write balanced answers on ethical and environmental issues, and to write up two scientific enquiries alone under high control using precise terminology. Its numeracy demand is high across six examinations and Unit 7: equations with SI units, chemical calculations, percentages, significant figures, graphs and gradients, sampling, probability in genetics and decay, and payback costs, with standard form, rearranging equations and y = mx + c at higher tier. The single biggest thing Key Stage 3 should build is fluent, well set out calculation from practical data: correct units, substitution into equations, means and graphs, explained in precise scientific language.

Awarding body
WJEC
Level
Level 1 and Level 2
First taught
September 2026
Amount of literacy work
Medium
Amount of numeracy work
High
Specification
Open the specification
How this qualification is assessed
  • Unit 1: Biology, Basis of Life: Written examination (tiered), 1 hour 15 minutes, 56 marks, 14.3%
  • Unit 2: Chemistry, Chemical Substances and How They Behave: Written examination (tiered), 1 hour 15 minutes, 56 marks, 14.3%
  • Unit 3: Physics, Forces, Motion and the Universe: Written examination (tiered), 1 hour 15 minutes, 56 marks, 14.3%
  • Unit 4: Biology, Continuity of Life: Written examination (tiered), 1 hour 15 minutes, 64 marks, 15.7%
  • Unit 5: Chemistry, Chemical Bonding, Reactions and Resources: Written examination (tiered), 1 hour 15 minutes, 64 marks, 15.7%
  • Unit 6: Physics, Waves, Electricity and Energy: Written examination (tiered), 1 hour 15 minutes, 64 marks, 15.7%
  • Unit 7: Scientific Enquiry: Two enquiries from a choice of three, each a practical task (1 hour) and a written task (1 hour), 28 marks each (56 marks), externally marked by WJEC, 10%

Skills that use Representing data

  1. Plotting graphs, gradients and decay curves

    Assessed: In the exam and in coursework (NEA)

    Learners plot two variables from data, use motion graphs, and find half-life from decay curves. Calculating acceleration from the gradient of a speed-time graph (page 30), rate from a straight line (page 25), and gradient, slope and intercept (Appendix D) are higher tier only.

    Numeracy: Representing data, Interpreting data, Conceptual understanding

    Getting pupils ready

    Year 7
    Pupils plot a cooling curve for stearic acid and read the melting point from the flat part of the graph.
    Year 8
    Pupils plot a distance-time graph for a trolley and decide which section was fastest from the steepness of the line.
    Year 9
    Pupils model decay by rolling 100 dice and removing every six after each throw, plot the number left against throw number, and read the half-life from their curve.
    Show the specification wording and the LNF statements

    Where it is in the specification: Unit 6, Section 6.1.3, page 57

    “determine the half-life of a radioisotope from a decay curve or data”
    Progression step 3
    • I can select and construct appropriate charts, diagrams and graphs with suitable scales.

    • I can represent data using:

      • lists, tally charts, tables, diagrams and frequency tables
      • bar charts, grouped data charts, line graphs and conversion graphs
      • pictograms where one symbol represents more than one unit using a key
      • Venn and Carroll diagrams.
    • I can extract and interpret information from an increasing range of diagrams, timetables and graphs (including pie charts).

    Progression step 4
    • I can construct and interpret graphs and diagrams (including pie charts) to represent discrete or continuous data, choosing an appropriate scale.

    • I can construct graphs to represent data including scatter diagrams to investigate correlation.

    • I can interpret mathematical information; drawing inferences from graphs, diagrams and data, including discussion on limitations of data.

    Progression step 5
    • I can select and construct appropriate charts, diagrams and graphs with suitable scales.

    • I can interpret mathematical information; drawing inferences from graphs, diagrams and data, including discussion on limitations of data.

    • I can represent a concept in different ways, flowing between different representations including verbal, concrete, visual, digital and abstract.

Good to know

Links with other qualifications

The Appendix D mathematics overlaps closely with GCSE Mathematics and Numeracy, the scientific enquiry demands match GCSE Integrated Science, and the climate and sampling work overlaps with Geography.

Source: WJEC GCSE The Sciences (Double Award) specification, teaching from 2026, for award from 2028, © WJEC CBAC Ltd 2025.