GCSE Integrated Science
Mae disgrifiadau'r TGAU yn Saesneg yn unig, gan eu bod wedi eu cymryd o fanyleb Saesneg CBAC.
Integrated Science (Single Award) asks learners to read a pre-release Resource Folder worth a third of the Unit 1 paper, judge how reliable health and climate information is, write balanced evaluations, and write up a scientific enquiry alone under high control using precise scientific terms. Its numeracy load is heavy: Appendix D lists units, percentages, significant figures, substituting into equations, plotting graphs and, at higher tier, standard form, rearranging equations and gradients, all applied to energy costs, efficiency, density, motion and practical data. The single biggest thing Key Stage 3 should build is routine, confident handling of practical data: measuring with units, calculating means and values from equations, and plotting and explaining graphs.
- Addysgu gyntaf
- Medi 2026
- Faint o waith llythrennedd
- Canolig
- Faint o waith rhifedd
- Uchel
- Manyleb
- Agor manyleb CBAC (PDF)
Sut mae'r TGAU hwn yn cael ei asesu
- Unit 1: Living on Earth: Written examination (tiered), 1 hour 30 minutes, 72 marks, includes pre-release Resource Folder, 45%
- Unit 2: Science in a Changing World: Written examination (tiered), 1 hour 30 minutes, 72 marks, 45%
- Unit 3: Scientific Enquiry: One enquiry from a choice of two: practical task (1 hour) and written task (1 hour), 28 marks, externally marked by WJEC, 10%
Sgiliau sy'n defnyddio Cymhwysedd strategol
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Substituting into and rearranging equations
Learners substitute values into equations for speed, acceleration, weight, resultant force, wave speed, density, efficiency and electrical cost, using correct units. Changing the subject of an equation is assessed at higher tier only.
Rhifedd: Cyfathrebu â symbolau, Cymhwysedd strategol, Mesur, Cyfrifiad
Paratoi disgyblion
- Blwyddyn 7
- Pupils time a toy car over a measured distance and use speed = distance ÷ time, setting out the equation, the substitution and the answer in m/s on three lines.
- Blwyddyn 8
- Pupils measure the mass of classroom objects and calculate their weight on Earth, the Moon and Mars from given gravitational field strengths, writing units at each step.
- Blwyddyn 9
- Pupils find the density of rock samples, then rearrange density = mass ÷ volume to predict the mass of a larger block of the same rock.
Dangos geiriad y fanyleb a datganiadau'r Fframwaith Llythrennedd a Rhifedd
Ble mae yn y fanyleb: Appendix D, Mathematical Skills, page 46
“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.
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Measuring accurately and working with SI units
Learners measure mass and volume, including by displacement for irregular objects, to find density, and must recognise and use SI units, prefixes and unit conversions (Appendix D, page 46). Appendix C expects them to understand the resolution of measuring instruments.
Rhifedd: Mesur, Siâp a gofod, Y system rif, Cymhwysedd strategol
Paratoi disgyblion
- Blwyddyn 7
- Pupils read thermometers, measuring cylinders and top-pan balances at practical stations, record each reading with its unit and say what the smallest division is.
- Blwyddyn 8
- Pupils find the volume of irregular stones by displacement in a measuring cylinder, and convert between cm³ and ml and between g and kg.
- Blwyddyn 9
- Pupils find the density of regular blocks by measuring and calculating their volume and of irregular objects by displacement, and state the resolution of each instrument.
Dangos geiriad y fanyleb a datganiadau'r Fframwaith Llythrennedd a Rhifedd
Ble mae yn y fanyleb: Unit 2, Section 2.3.1c, page 32
“carry out experiments to determine the density of both regular and irregular shaped objects to identify the material they are made from.”
Cam cynnydd 3
Rwy'n gallu darllen a dehongli graddfeydd neu raniadau ar amrywiaeth o offerynnau mesur.
Rwy'n gallu trosi unedau metrig o hyd i unedau llai, e.e. cm i mm, m i cm, km i m.
Rwy'n gallu dod o hyd i gyfeintiau drwy gyfrif a dulliau ymarferol eraill.
Cam cynnydd 4
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.
Rwy'n gallu cymhwyso'r fformiwlâu ar gyfer cyfaint prismau syml.
Cam cynnydd 5
Rwy'n gallu adnabod a diffinio cyfyngiadau ar gywirdeb mesuriadau, e.e. ffiniau uchaf ac isaf.
Rwy'n gallu deall a defnyddio amrywiaeth o fesurau cyfansawdd.
Rwy'n gallu nodi, mesur neu gasglu'r wybodaeth sy'n ofynnol er mwyn cwblhau'r dasg.
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Calculating the cost of electricity and payback time
Learners calculate the cost of using appliances, including electric vehicles, with units used (kWh) = power (kW) x time (hours) and cost = units used x cost per unit, then use data to find payback times.
Rhifedd: Llythrennedd ariannol, Cyfrifiad, Cymhwysedd strategol, Dealltwriaeth gysyniadol, Rhesymu rhesymegol
Paratoi disgyblion
- Blwyddyn 7
- Pupils read the power rating on classroom appliances and work out which one costs most to run for an hour, given a price per kWh.
- Blwyddyn 8
- Pupils calculate the weekly cost of running a kettle, a games console and a phone charger at home, using kWh = kW x hours and a current price per unit.
- Blwyddyn 9
- Pupils compare the yearly running costs of a petrol car and an electric car from given data and work out how many years the electric car takes to pay back its extra cost.
Dangos geiriad y fanyleb a datganiadau'r Fframwaith Llythrennedd a Rhifedd
Ble mae yn y fanyleb: Unit 1, Section 1.3.1b, page 22
“use data to determine the payback time of electrical appliances, including electric vehicles.”
Cam cynnydd 3
Rwy'n gallu rheoli arian, cymharu costau siopau gwahanol a phenderfynu beth y gellir ei brynu o fewn cyllideb benodol.
Rwy'n gallu cymharu prisiau a deall pa un yw'r gwerth gorau am arian.
Rwy'n gallu lluosi rhifau a degolion â lluosrif o 10, e.e. 15 x 30, 1.4cm x 20.
Cam cynnydd 4
Rwy'n gallu gwerthfawrogi egwyddorion sylfaenol cyllidebu, cynilo (gan gynnwys deall adlog) a benthyca.
Rwy'n gallu defnyddio dulliau effeithlon i luosi a rhannu rhifau cyfan a degolion, gan gynnwys degolion megis 0.6 neu 0.06.
Rwy'n gallu blaenoriaethu a threfnu'r camau perthnasol sydd eu hangen i gwblhau'r dasg neu ddod o hyd i ddatrysiad.
Cam cynnydd 5
Rwy'n gallu blaenoriaethu a threfnu'r camau perthnasol sydd eu hangen i gwblhau'r dasg neu ddod o hyd i ddatrysiad.
Rwy'n gallu dehongli atebion o fewn cyd-destun y broblem ac ystyried a yw atebion, gan gynnwys dangosyddion cyfrifiannell, analog a digidol, yn synhwyrol.
Rwy'n gallu cyfiawnhau fy ngweithdrefnau, fy rhagfynegiadau a'm dyfaliadau.
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Collecting reliable primary data
In Unit 3 Task 1 (6 marks) learners work in groups of no more than three to follow a given method and collect reliable data. Across all units SE5 asks them to collect, record and present primary data while improving its quality (page 9).
Rhifedd: Casglu data, Cymhwysedd strategol
Paratoi disgyblion
- Blwyddyn 7
- Pupils measure their pulse before and after a minute of star jumps, recording three repeats in a results table with headings and units.
- Blwyddyn 8
- Pupils plan a results table for a ruler-drop investigation into how distraction affects thinking time, including repeats, before they collect any data.
- Blwyddyn 9
- In groups of three, pupils follow a given method to investigate enzyme activity at different temperatures, record repeat readings and decide which ones need repeating.
Dangos geiriad y fanyleb a datganiadau'r Fframwaith Llythrennedd a Rhifedd
Ble mae yn y fanyleb: Unit 3, page 33
“practical investigation using a given method including observation, measurement, and the collection of reliable data through hands-on experimentation.”
Cam cynnydd 3
Rwy'n gallu casglu data perthnasol i ateb cwestiynau a ofynnwyd.
Rwy'n gallu nodi, mesur neu gasglu'r wybodaeth sy'n ofynnol er mwyn cwblhau'r dasg.
Cam cynnydd 4
Rwy'n gallu cynllunio sut i gasglu data er mwyn profi rhagdybiaeth syml.
Rwy'n gallu casglu data meintiol ac ansoddol.
Rwy'n gallu nodi, mesur neu gasglu'r wybodaeth sy'n ofynnol er mwyn cwblhau'r dasg.
Cam cynnydd 5
Rwy'n gallu casglu data mewn ffordd addas yn unol â'm rhagdybiaeth.
Rwy'n gallu nodi, mesur neu gasglu'r wybodaeth sy'n ofynnol er mwyn cwblhau'r dasg.
Da gwybod
- Unit 1 includes a pre-release Resource Folder released one month before the examination: '24 marks will be allocated to questions linked to the pre-release material', and candidates receive a clean copy of the folder with the question paper (page 11).
- Unit 3 Task 2 (22 marks) is written alone: 'Learners must work independently in high controlled conditions' (page 33). In Task 1 (6 marks) learners 'may work in groups of no more than three' (page 33).
- Higher tier only mathematics is shown in bold in Appendix D (page 46): standard form, changing the subject of an equation, and determining and interpreting the gradient, slope and intercept of a linear graph. Calculating acceleration from the gradient of a speed-time graph (page 13) and calculating rate from a straight line (page 20) are also higher tier content.
- The uncertainty formula is provided: 'There is a formula to calculate this which you will be given in an exam' (Appendix C, page 44).
- AO3, 'Analyse, interpret and evaluate scientific information, processes, techniques and procedures', carries 25% of the qualification (page 35).
- The specification awards no separate marks for spelling, punctuation and grammar and makes no statement about calculator use.
Cysylltiadau â TGAU eraill
The Appendix D mathematics overlaps closely with GCSE Mathematics and Numeracy, and the carbon footprint, air quality and energy cost work overlaps with Geography.
Ffynhonnell: WJEC GCSE Integrated Science (Single Award) specification, teaching from 2026, for award from 2028, © WJEC CBAC Ltd 2025.