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GCSE The Sciences

Mae disgrifiad y cymhwyster yn Saesneg yn unig, gan ei fod wedi ei gymryd o fanyleb Saesneg CBAC.

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.

Corff dyfarnu
CBAC
Lefel
Level 1 and Level 2
Addysgu gyntaf
Medi 2026
Faint o waith llythrennedd
Canolig
Faint o waith rhifedd
Uchel
Manyleb
Agor y fanyleb
Sut mae'r cymhwyster hwn yn cael ei asesu
  • 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%

Sgiliau sy'n defnyddio Mesur

  1. Substituting into and rearranging equations

    Asesu: Yn yr arholiad ac mewn gwaith cwrs

    Learners use many equations, including speed, acceleration, weight, force, wave speed, power, current, work done and energy stores, with correct units. Changing the subject of an equation and y = mx + c are higher tier only, and the Unit 3 and Unit 6 papers print the equations on page 2 (page 66).

    Rhifedd: Cyfathrebu â symbolau, Cymhwysedd strategol, Mesur, Cyfrifiad

    Paratoi disgyblion

    Blwyddyn 7
    Pupils calculate the speed of a paper helicopter falling 2 m, writing the equation, the substitution and the answer with units on separate lines.
    Blwyddyn 8
    Pupils measure current and voltage for a lamp and calculate resistance = voltage ÷ current, checking every value is in volts, amps or ohms.
    Blwyddyn 9
    Pupils rearrange speed = distance ÷ time and weight = mass x gravitational field strength, first with a formula triangle and then algebraically, to find distance and mass.
    Dangos geiriad y fanyleb a datganiadau'r Fframwaith Llythrennedd a Rhifedd

    Ble mae yn y fanyleb: Appendix D, Mathematical Skills, page 78

    “Substitute numerical values into algebraic equations and solve them using appropriate units for physical quantities”
    Cam cynnydd 3
    • Rwy'n gallu cyfleu fy atebion gan ddefnyddio ffurf fathemategol gywir.

    • Rwy'n gallu defnyddio nodiant, symbolau ac unedau mesur priodol.

    • Rwy'n gallu adnabod, modelu a chymhwyso'r strwythurau a syniadau mathemategol wrth wraidd problemau, er mwyn eu fformiwleiddio a'u datrys.

    Cam cynnydd 4
    • Rwy'n gallu dangos dealltwriaeth o'r berthynas rhwng fformiwla sy'n cynrychioli mesuriad a'r unedau a ddefnyddir.

    • Rwy'n gallu defnyddio trefn gweithrediadau gan gynnwys cromfachau a phwerau.

    • Rwy'n gallu defnyddio nodiant, symbolau ac unedau mesur priodol, gan gynnwys mesurau cyfansawdd.

    Cam cynnydd 5
    • Rwy'n gallu cyfleu fy atebion gan ddefnyddio ffurf fathemategol gywir.

    • Rwy'n gallu defnyddio nodiant, symbolau ac unedau mesur priodol, gan gynnwys mesurau cyfansawdd.

    • Rwy'n gallu adnabod, modelu a chymhwyso'r strwythurau a syniadau mathemategol wrth wraidd problemau, er mwyn eu fformiwleiddio a'u datrys.

  2. Working with SI units, prefixes and measurement

    Asesu: Yn yr arholiad ac mewn gwaith cwrs

    Learners must recognise and use SI units and prefixes, convert units and use compound measures such as m/s, m/s² and kWh. They investigate mean acceleration practically (Section 3.1.1, page 30) and need to understand the resolution of instruments (Appendix C).

    Rhifedd: Mesur, Y system rif, Cyfathrebu â symbolau

    Paratoi disgyblion

    Blwyddyn 7
    Pupils measure leaf lengths with a ruler, record them in mm and in cm, and convert between the two.
    Blwyddyn 8
    Pupils time a trolley down a ramp, convert the distance from cm to m, and give its speed in m/s.
    Blwyddyn 9
    Pupils convert between mA and A and between kW and W in circuit and power questions, and state the resolution of the ammeter and stopwatch they used.
    Dangos geiriad y fanyleb a datganiadau'r Fframwaith Llythrennedd a Rhifedd

    Ble mae yn y fanyleb: Appendix D, Mathematical Skills, page 78

    “Recognise and use SI units and prefixes”
    Cam cynnydd 3
    • Rwy'n gallu darllen a dehongli graddfeydd neu raniadau ar amrywiaeth o offerynnau mesur.

    • Rwy'n gallu cofnodi mesuriadau mewn ffyrdd gwahanol, e.e. 1.3kg = 1kg 300g, 4.2cm = 4cm 2mm.

    • Rwy'n gallu trosi unedau metrig o hyd i unedau llai, e.e. cm i mm, m i cm, km i m.

    Cam cynnydd 4
    • Rwy'n gallu cynrychioli a defnyddio mesurau cyfansawdd, gan ddefnyddio unedau safonol.

    • Rwy'n gallu darllen a dehongli graddfeydd ar amrywiaeth o offerynnau mesur.

    • Rwy'n gallu defnyddio'r unedau mesur cyffredin, trosi rhwng unedau cysylltiedig y system fetrig a chwblhau cyfrifiadau.

    Cam cynnydd 5
    • Rwy'n gallu deall a defnyddio amrywiaeth o fesurau cyfansawdd.

    • Rwy'n gallu adnabod a diffinio cyfyngiadau ar gywirdeb mesuriadau, e.e. ffiniau uchaf ac isaf.

    • Rwy'n gallu defnyddio nodiant, symbolau ac unedau mesur priodol, gan gynnwys mesurau cyfansawdd.

Da gwybod

Cysylltiadau â chymwysterau eraill

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.

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