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Edexcel GCSE Combined Science Past Papers
Official question papers, mark schemes and examiner reports.
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Navigator’s note
Ignoring the Vector Nature of Momentum (Physics Higher)
Remember that velocity and momentum are vectors.
All 4 examiner tipsOther destinations
Edexcel GCSE Combined Science papers by session
November 2020
12 papersLatest seriesFoundation tier· 6
Higher tier· 6
Examiner InsightsEdexcel GCSE Combined Science
Examiner tips.
Practical advice to help you avoid common mistakes and write stronger answers.
01Common mistake
Ignoring the Vector Nature of Momentum
When calculating force or change in momentum, students often ignore direction. If an object hits a wall and bounces back, they often calculate the difference in magnitudes (e.g., 0.8−0.6=0.2) instead of the total change (e.g., 0.8−(−0.6)=1.4).
How to improve
Remember that velocity and momentum are vectors.
Assign a positive sign to one direction and a negative sign to the opposite direction. When an object reverses direction, its "before" and "after" velocities must have different signs
Where it counts: Physics Higher
1 / 4
02Common mistake
Confusing Gradient and Area on Graphs
Students often calculate the area under a graph when they are asked for acceleration, or they calculate the gradient when asked for distance. Additionally, they often misread scales, failing to realize that one small square may represent a value other than 1, 2, or 5 units.
How to improve
Memorize these two rules for velocity-time graphs: 1.
Gradient = Acceleration. 2. Area Under Graph = Distance Travelled. Always check the numbers on the axes carefully to determine exactly what each small grid line represents before you start reading data.
Where it counts: Physics Higher
2 / 4
03Common mistake
. Misunderstanding Command Words
A very frequent error is providing a simple description when the question uses the command word "explain," which requires scientific reasoning and the use of "because". Similarly, for "compare" questions, students often fail to use comparative language (e.g., "greater than," "faster," or "lower") to link two sets of data or concepts.
“greater than”
How to improve
When you see "explain," ensure your response includes a linked scientific reason.
For "compare" tasks, specifically use comparative adjectives and quote figures from both sets of data to support your points.
Where it counts: "Explain" and "Compare" in Biology Higher Tier
3 / 4
04Common mistake
Muddled Understanding of Biological Processes
There is often confusion regarding the specifics of enzyme action and the stages of the cell cycle. Students frequently fail to mention the "active site" or "denaturing" when explaining why enzymes stop working. In cell biology, many students incorrectly identify processes occurring in interphase (like DNA replication) as being part of mitosis.
“active site”
How to improve
Note these: o Enzymes: When explaining enzyme activity changes, always refer to the active site changing shape and the substrate being unable to bind. o Cell Cycle: Clearly distinguish between interphase (cell growth and DNA copying) and the stages of mitosis (prophase, metaphase, anaphase, telophase)
Where it counts: Enzymes and Cell Cycle for Biology Higher
4 / 4
Frequently asked questions
Has the core content or topic structure changed for the 2027 papers compared to 2026?
No. The curriculum content, topic distributions, and exam structure are identical to 2026.
Will students still receive an Equations Sheet in the Physics papers?
Yes. What began as a temporary pandemic-era measure has been made permanently official by Ofqual and the DfE. Students will receive a full Equations Sheet insert for Papers 5 and 6 (Physics) for the lifetime of the current specification, covering 2026, 2027, and all subsequent resit years.
How many papers are there, and how long is each one?
Six papers in total, all sat in the same summer series. Each paper is 1 hour 10 minutes and worth 60 marks.
Can 2026 past papers be used to prepare students for 2027?
Yes — they are a direct match in both layout and content, and are the best available practice material.
What are "Core Practicals," and how much do they actually matter on a written paper?
Core Practicals are the mandatory experiments you did in class (like potato osmosis, electrolysis, or investigating forces). You aren't graded in the lab, but at least 15% of the marks on the written papers test you on them.
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