CompetitivePractice + Mock

GCSE Combined Science (Trilogy)

AQA / Edexcel / OCR · Biology + Chemistry + Physics · Double Award

75
Minutes
20
Questions
455,000
Learners
~65% (Grade 4-4)
Pass mark
★ Start here · Official guidance

From practice to the real exam

Verified sources
01
Decide route
Combined Science (Trilogy on AQA / Synergy on AQA / Combined on Edexcel/OCR) = "Double Award" worth two GCSEs. Triple Science (separate Bio/Chem/Phy GCSEs) is the alternative for stronger candidates.
02
Cover all 3 subjects
Biology (Cells, Organisms, Infection, Bioenergetics, Homeostasis, Inheritance, Ecology), Chemistry (Atomic structure, Bonding, Quantitative, Chemical changes, Energy, Rate, Organic, Analysis, Atmosphere, Resources), Physics (Energy, Electricity, Particle model, Atomic structure, Forces, Waves, Magnetism).
03
Required practicals
AQA requires 16 specified practicals (6 Bio + 5 Chem + 5 Phy). Up to 15% of exam marks test understanding of these. Don't skip lab work.
04
Six papers
6 papers total (2 each of Bio/Chem/Phy), each 1h 15m, sat in May/June. Marks combined into TWO awarded grades (e.g. 6-6).
05
Maths skills count
~20% of Combined Science marks test mathematical skills (rearranging equations, percentages, ratios). Study the maths skills appendix.
Official resources
Heads up: Links open in a new tab and go to government / awarding-body sites. AceMark is not affiliated — always verify deadlines and fees on the official page.
Exam blueprint

What this exam covers

5 topics · 20 questions in the bank
Topic weights below mirror the real exam blueprint. To practise any single topic, use the Your study path panel on the right.
01Chemistry
30%6 questions
02Physics
30%6 questions
03Biology
25%5 questions
04Working scientifically
10%2 questions
05Required practicals
5%1 question
The experience

What to expect on test day

Timed simulation
Every mock runs under real exam time pressure. No pauses, no hints — exactly like the day.
Randomised questions
Every attempt draws fresh questions. You cannot memorise your way to a pass — you have to understand.
Integrity monitoring
Tab switches are logged in mock mode. Three switches auto-submits — same discipline as a real proctor.
Detailed results
Topic-by-topic breakdown, every answer explained, and a personalised 5-day study plan when you finish.
How to prepare

Competitive study playbook

Four habits that move the needle most — pulled from how high-scorers actually study.

01
Spend the first week entirely on your weakest topic — momentum follows confidence.
02
Previous-year papers are the single highest-ROI study tool. Treat them as gospel.
03
Strict time per question. Most failures are time-management failures, not knowledge failures.
04
For GS: daily current affairs reading is non-negotiable — even 15 minutes compounds.