CCEA GCSE · Analysis & Prediction

2023 CCEA GCSE Science Double Award 1370 Past Paper: Analysis & Answers

The CCEA GCSE Double Award Science suite (Higher Tier) provides a comprehensive assessment across Biology, Chemistry, and Physics. Across practical assessment components (Unit 7 Booklets A and B) and core theory components (Units 1 and 2), the examination emphasizes accurate experimental data recording, balanced chemical and nuclear equations, multi-step numerical calculations with correct units, graphical skills (plotting, line/curve fitting, gradient determination), and 6-mark extended prose responses assessing Quality of Written Communication (QWC).

Updated: 31 Aug 2026

Analysis Sample paper

Difficulty 3.4/5

Total marks

500

Duration

480 mins

Most tested

Practical Experimental Skills, Graph Analysis, and Quantitative Calculations

Paper breakdown

Unit 7 Practical Booklet A (GDW75): 45 marks · 60 minsUnit 7 Practical Booklet B (GDW76/77/78): 105 marks · 90 minsUnit B1 Biology Higher (GDW12): 70 marks · 60 minsUnit C1 Chemistry Higher (GDW22): 70 marks · 60 minsUnit P1 Physics Higher (GDW32): 70 marks · 60 minsUnit B2 Biology Higher (GDW42): 80 marks · 75 minsUnit C2 Chemistry Higher (GDW52): 80 marks · 75 mins

Top chapters

Carrying out an experiment & Analysing experimental data · 150 marksQuantitative chemistry · 42 marksForce and Motion · 36 marksBonding and Structures · 32 marksGenome, chromosomes, DNA and genetics · 28 marks

Overall Verdict & Performance Overview

The CCEA GCSE Double Award Science Higher Tier suite presents a well-balanced examination that rigorously tests candidates across all three scientific disciplines as well as essential practical competencies. Overall difficulty is moderate to demanding, sitting comfortably at 3.4 out of 5. The paper distinguishes effectively between standard candidates and high achievers through multi-tier quantitative questions, structured experimental interpretations, and extended six-mark responses marked via levels of response.

Where the Marks Are Won

Marks are distributed evenly across key specification areas:

Core Practical & Investigative Skills (Unit 7): Graph construction, identifying variables (independent, dependent, controlled), calculating gradients (e.g., resistance \(R = \frac{V}{I}\)), and detailing laboratory steps (such as onion cell slide preparation and paper chromatography).
Calculations: Work done \(W = F \times d\), electrical power \(P = I \times V\), wave speed \(v = f \lambda\), percentage yield, and mole/empirical water of crystallisation ratios.
Fundamental Concepts: Balanced symbol and ionic equations, atomic and nuclear decay representations, ecological food webs, and genetics mechanisms (mitosis, meiosis, DNA base triplets).

Examiner Pitfalls & Critical Traps

Key areas where students routinely lose preventable marks include:

Missing or Incorrect Units: Failing to append units to gradient values (such as \(\Omega\) or \(\text{V}/\text{A}\)) or omitting required rounding instructions (e.g., nearest whole number or 1 decimal place).
Extended Writing Structure (QWC): Neglecting essential threshold criteria or specialist scientific terms in 6-mark questions (e.g., specifying named enzymes/substrates, or detailing the use of a pencil base line and solvent front measurement in chromatography).
Precision in Graphing: Plotting points carelessly without sharp crosses/dots, failing to cover at least half the grid with scales, or drawing clumsy point-to-point lines instead of smooth best-fit curves or straight lines.
Misinterpreting Biological & Chemical Mechanisms: Confusing the functions of antibodies, confusing the roles of independent assortment, or omitting ionic charges in half equations.

Strategy for Revision & Exam Technique

Focus high-impact revision on repeatable calculation workflows, standard practical method descriptions, and drawing accurate biological diagrams (such as recombinant plasmids and chromosomes during cell division). Always write full working for numerical problems to secure intermediate error-carried-forward (ECF) marks.

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Charts

Marks by chapter

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Question type mix

Compare the mark share of each paper section and question type.

Short Answer & Recall110 marks · 48 questions
Data Analysis & Table Completion95 marks · 28 questions
Numerical Calculations & Formula Applications135 marks · 32 questions
Graph Plotting & Construction36 marks · 8 questions
Chemical & Nuclear Equations / Diagrams60 marks · 20 questions
Extended Open Response (QWC 6-markers)64 marks · 11 questions

Mark accessibility

Estimate which marks were basic, mid-level, or high-difficulty.

77%within easy or medium reach

165

220

115

easy: 165 marksmedium: 220 markshard: 115 marks

Command word frequency

Spot common command words so answers match the expected response style.

Skill weighting

Shows the skill mix this paper tested most heavily.

Study ROI

Bigger bubbles recur more often; higher bubbles carry more marks, helping you rank revision priorities.

Unit 7 Experimental Procedures & Chromatography / Slide Prep (QWC)

70 marks · Difficulty 2.6 · recurrence 100%

Quantitative Chemistry Calculations (Moles, Yields, Hydration)

42 marks · Difficulty 3.3 · recurrence 95%

Physics Motion, Work, Power & Hooke's Law Equations

36 marks · Difficulty 3.1 · recurrence 90%

Chemical Bonding, Dot-and-Cross & Electronic Structure

32 marks · Difficulty 2.8 · recurrence 90%

Genetics, Cell Division (Mitosis/Meiosis) & DNA Triplet Code

28 marks · Difficulty 3.2 · recurrence 85%

Respiration, Photosynthesis & Enzyme Rate Experiments

28 marks · Difficulty 2.9 · recurrence 85%

Time vs marks

Compare marks with suggested time allocation to plan exam pacing.

marksmins

Next-year prediction

Topics worth watching next year, with the reason shown directly below each bar.

Rates of Reaction and Gas Volume Collection90%

Consistently featured in Unit 7 and Unit C2 papers; core practical testing measuring cylinder vs gas syringe is standard.

Circulatory System & Heart Structure88%

Unit B2 was heavily weighted towards genetics and immunity in this paper, leaving heart and blood vessel transport overdue.

Electrolysis of Aqueous Solutions & Half Equations85%

Molten lead(II) bromide appeared in 2023; aqueous solutions such as copper sulfate or sodium chloride are prime candidates for the next series.

Density and Kinetic Theory Calculations80%

Appears reliably in Unit P1 as a structured calculation with geometric volume steps.

Cumulative marks ladder

The line is your running mark total question by question; dashed lines are the estimated grade cut-offs. See which question the line crosses your target grade at, so you know how far you must answer cleanly and which questions decide a band.

Examiner insights

Official report

Common pitfalls

Omitting units in calculation final lines (e.g. failing to give ohms \(\Omega\) or \(\text{m}/\text{s}\) where lines explicitly prompt 'Unit =').
In 6-mark QWC questions, failing to include sufficient indicative content points across all bulleted criteria, thus capping responses in Band B (3-4 marks) or Band C.
Confusing balancing coefficients in chemical equations or writing incorrect ionic charges in half equations (e.g. forgetting \(2e^-\) on the reactant side for reduction of \(\text{Br}_2\)).
Graph plotting errors: choosing compressed scales covering less than 50% of the grid, or failing to draw a single continuous line of best fit.

Misconceptions

Thinking that plant cells burst in pure water, rather than explaining that the cell wall creates turgor pressure and resists lysis.
Assuming magnesium 'rusts' instead of using correct electrochemical language (sacrificial protection / more reactive metal corrodes preferentially).
Believing that red blood cells increase in size in concentrated salt solutions due to water entering, rather than shrinking due to osmotic water loss.
Conflating mass and weight by forgetting to multiply mass in kg by gravitational field strength \(g = 10\,\text{N/kg}\).

Where marks are lost

Failure to round numerical answers to the specifically requested degree of accuracy (e.g. nearest whole number or 1 decimal place).
Incomplete descriptions in rate of reaction questions (e.g. stating only that 'rate changes' rather than 'rate increases as concentration increases').
Chromosome drawing questions where candidate diagrams do not maintain correct morphology (bendy vs straight, shaded vs clear) or count.

Estimated grade cut-off

Updated: 31 Aug 2026

Source: CCEA

Level	Mark	Percentage
A*	—	90%
A	—	80%
B	—	70%
C*	—	65%
C	—	60%
D	—	50%
E	—	40%
F	—	30%
G	—	20%

Official grade boundaries published by CCEA.

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Level	Mark	Percentage
A*	—	90%
A	—	80%
B	—	70%
C*	—	65%
C	—	60%
D	—	50%
E	—	40%
F	—	30%
G	—	20%

Level	Mark	Percentage
A*	—	90%
A	—	80%
B	—	70%
C*	—	65%
C	—	60%
D	—	50%
E	—	40%
F	—	30%
G	—	20%

Level	Mark	Percentage
A*	—	90%
A	—	80%
B	—	70%
C*	—	65%
C	—	60%
D	—	50%
E	—	40%
F	—	30%
G	—	20%