Edexcel GCSE Chemistry Past Papers 2020–2025 (1CH0) – Paper 1 & Paper 2, Foundation & Higher, Question Papers, Mark Schemes & Resources
- Ava Turner
- Feb 18
- 9 min read
Updated: 58 minutes ago
You'll find all the latest Edexcel GCSE Chemistry past papers right here — covering 2020 to 2025, with Foundation and Higher tier question papers, mark schemes, and official exam resources all in one place. Practising with real exam questions is one of the most effective things you can do to get comfortable with how Edexcel structures its papers. Whether you're working towards the 2026 or 2027 GCSE Chemistry exams, these papers are an essential part of your preparation.
Before you dive into the papers, our teachers and examiners have put together some of the most important tips and insights — the kind of advice that can genuinely protect your marks. Click here or scroll below to read it before you start — it's well worth a few minutes of your time. If you are unsure whether these are the correct Edexcel Chemistry papers for your specific course, you can also click here for a quick clarification guide.
June 2024 Edexcel GCSE Chemistry (1CH0) Past Papers – Paper 1 & Paper 2 Foundation and Higher
2024 Edexcel GCSE Chemistry | Downloads | |
June 2024 Edexcel GCSE Chemistry (9–1) Paper 1 Foundation (1CH0/1F) | ||
June 2024 Edexcel GCSE Chemistry (9–1) Paper 1 Higher (1CH0/1H) | ||
June 2024 Edexcel GCSE Chemistry (9–1) Paper 2 Foundation (1CH0/2F) | ||
June 2024 Edexcel GCSE Chemistry (9–1) Paper 2 Higher (1CH0/2H) | ||
June 2023 Edexcel GCSE Chemistry (1CH0) Past Papers – Paper 1 & Paper 2 Foundation and Higher
2023 Edexcel GCSE Chemistry | Downloads | |
June 2023 Edexcel GCSE Chemistry (9–1) Paper 1 Foundation (1CH0/1F) | ||
June 2023 Edexcel GCSE Chemistry (9–1) Paper 1 Higher (1CH0/1H) | ||
June 2023 Edexcel GCSE Chemistry (9–1) Paper 2 Foundation (1CH0/2F) | ||
June 2023 Edexcel GCSE Chemistry (9–1) Paper 2 Higher (1CH0/2H) | ||
June 2024 Edexcel GCSE Chemistry (1CH0) Past Papers – Paper 1 & Paper 2 Foundation and Higher
2022 Edexcel GCSE Chemistry | Downloads | |
June 2022 Edexcel GCSE Chemistry (9–1) Paper 1 Foundation (1CH0/1F) | ||
June 2022 Edexcel GCSE Chemistry (9–1) Paper 1 Higher (1CH0/1H) | ||
June 2022 Edexcel GCSE Chemistry (9–1) Paper 2 Foundation (1CH0/2F) | ||
June 2022 Edexcel GCSE Chemistry (9–1) Paper 2 Higher (1CH0/2H) | ||
June 2021 Edexcel GCSE Chemistry (1CH0) Past Papers – Paper 1 & Paper 2 Foundation and Higher
2021 Edexcel GCSE Chemistry | Downloads | |
June 2021 Edexcel GCSE Chemistry (9–1) Paper 1 Foundation (1CH0/1F) | ||
June 2021 Edexcel GCSE Chemistry (9–1) Paper 1 Higher (1CH0/1H) | ||
June 2021 Edexcel GCSE Chemistry (9–1) Paper 2 Foundation (1CH0/2F) | ||
June 2021 Edexcel GCSE Chemistry (9–1) Paper 2 Higher (1CH0/2H) | ||
June 2020 Edexcel GCSE Chemistry (1CH0) Past Papers – Paper 1 & Paper 2 Foundation and Higher
2020 Edexcel GCSE Chemistry | Downloads | |
June 2020 Edexcel GCSE Chemistry (9–1) Paper 1 Foundation (1CH0/1F) | ||
June 2020 Edexcel GCSE Chemistry (9–1) Paper 1 Higher (1CH0/1H) | ||
June 2020 Edexcel GCSE Chemistry (9–1) Paper 2 Foundation (1CH0/2F) | ||
June 2020 Edexcel GCSE Chemistry (9–1) Paper 2 Higher (1CH0/2H) | ||
What Edexcel GCSE Chemistry Examiners Wish Every Student Knew Before Sitting the Exam
1. Rounding Too Early — or Not at All
This is one of the most common ways to drop marks in a calculation question. Rounding numbers mid-calculation introduces errors that compound as you work through the steps — and forgetting to round the final answer to the precision the question asks for is an equally frustrating way to lose a mark you've otherwise earned.
Keep as many significant figures as possible throughout your working and save the rounding for the very last step. Before you write your final answer, go back and check whether the question specifies a required level of precision — "two decimal places" or "two significant figures" — and make sure your answer matches it exactly.
2. Only Writing the Final Answer
If your final answer is wrong and there's no working on the page, the mark is gone. But if your method is clearly laid out and only one step goes wrong, error carried forward marks mean you can still pick up credit for the correct parts.
Write out every step of your calculation, even when it feels unnecessary. Make your reasoning visible — not just for the examiner, but for yourself. It makes it much easier to spot where something went wrong if your answer doesn't look right.
3. Muddling Similar Scientific Terms
Vague or imprecise language is a consistent mark-loser in chemistry questions. Saying a metal is "eaten away" instead of oxidised or corroded, or confusing ammonia with ammonium, or chlorine with chloride — these feel like small slips but they signal to an examiner that the understanding isn't quite secure.
Learn the precise definitions and distinctions for key terms — atom, element, ion, molecule — and be deliberate about using the right one. The difference between "chlorine" and "chloride" is not minor in chemistry, and examiners will always notice.
4. Ignoring the Command Word
Describing when you should be explaining, or explaining when a description is all that's needed — this mismatch between what the question asks and what the answer provides costs marks on questions students often actually know the answer to.
Before you write anything, identify the command word and let it set the shape of your response. "Describe" means state what is happening — a pattern, an observation, a trend. "Explain" means give the scientific reason behind it — the why. One word, two completely different answers.
5. Graph Plotting and Drawing Mistakes
Two graphing habits come up constantly: plotting points with large dots that disappear under the best-fit line, and failing to start a curve at the origin when the data clearly calls for it. Both are easy to fix and easy to overlook.
Use a sharp pencil and mark each point with a small, neat cross (×) rather than a dot. Draw your best-fit line as one single, smooth curve — not a series of straight lines connected together. And when describing a trend, always back it up with specific data values from the axes rather than just saying "it increases."
6. Forgetting That Some Elements Come in Pairs
Balancing equations goes wrong quickly when students write diatomic elements as single atoms. Writing '2N' instead of 'N₂' is a fundamental error that makes the whole equation incorrect — and it's one that comes up regularly.
Memorise the diatomic elements and make them automatic: hydrogen, nitrogen, oxygen, and the halogens — H₂, N₂, O₂, Cl₂, Br₂ — always appear as pairs when they're not part of a compound. Every time you write one of these elements in an equation, check you've written it correctly.
7. Getting Bond Energy Changes the Wrong Way Round
The confusion between endothermic and exothermic in the context of bond breaking and making is one of the most persistent misconceptions in GCSE Chemistry — and mixing them up costs marks on questions that are otherwise very manageable.
Lock these two facts in: breaking bonds requires energy — it's endothermic. Making bonds releases energy — it's exothermic. An overall reaction is exothermic when more energy is released making new bonds than was needed to break the original ones. Learn it in that order and it becomes much harder to muddle.
8. Not Knowing the Right Names for Lab Equipment
Calling a conical flask "glassware" or mixing up equipment names in titration questions are the kinds of errors that suggest a lack of practical familiarity — and they cost marks that should be straightforward to pick up.
Learn the correct names for standard laboratory equipment and be specific when you use them. For titration questions in particular, make sure you know how to read a burette accurately — from the bottom of the meniscus — and remember that the scale runs from top to bottom, not bottom to top.
9. Making Simple Calculation Errors
BIDMAS mistakes when calculating means, or incorrectly working out surface area to volume ratios, are the kind of errors that feel avoidable in hindsight — because they are.*
For mean calculations, add all the values together first and then divide by the number of values — don't try to do it in one step. For surface area to volume ratios, calculate the area of one face of the cube and multiply by six before comparing it to the volume. Writing each step out clearly makes these errors much easier to catch before they cost you.
10. Just Repeating What the Question Already Said
In longer "devise" or "explain" questions, restating the information from the question stem without adding any scientific reasoning of your own is one of the most common ways to fall short of the marks available.
Treat the question stem as your starting point, not your answer. If you're asked to devise an experiment, don't just say "see which nail corrodes" — say that you'll leave them for a set period, such as 24 hours, and then compare the extent of rust formed. The scientific detail and the specific procedural steps are where the marks actually live.
What is Edexcel GCSE Chemistry (1CH0) and Is It the Right Paper for You?
The papers on this page are for Pearson Edexcel GCSE Chemistry (9–1) specification code 1CH0, which is the separate (triple science) Chemistry qualification. This means Chemistry is studied as an individual subject, alongside GCSE Biology and GCSE Physics, and students receive a separate GCSE grade for each science. If your timetable includes distinct Chemistry lessons and you will receive a separate Chemistry GCSE, these are the correct past papers for you.
Many students confuse this with Edexcel Combined Science, where Biology, Chemistry and Physics are taught together and students receive two GCSE grades instead of three. Combined Science papers use different specification codes (such as 1SC0 or 1CC0) and the exam questions, structure and content coverage are not identical. If your course is called Combined Science, Double Award or Trilogy, you should not revise using 1CH0 papers, as this may lead to gaps in your preparation.
You can also check whether these papers are right for you by looking at your school’s exam entry, your course handbook or your official exam timetable. The specification code 1CH0 will be printed on your exam entry statement and question papers. Your teacher or exams officer will also be able to confirm whether you are entered for separate Chemistry or Combined Science.
Finally, make sure you choose the correct tier. Foundation Tier (grades 1–5) and Higher Tier (grades 4–9) papers contain different levels of difficulty. Most schools decide which tier students sit based on mock results and predicted grades, so if you are unsure, speak to your teacher before practising past papers.
Are these past papers still relevant for my 2026 exam?
Yes, absolutely.
The Edexcel GCSE Chemistry (1CH0) specification hasn't changed in any meaningful way, so past papers are still one of the best revision tools you can use. There's been no major syllabus overhaul — the core topics are exactly the same as they've always been.
There are just a couple of small things to be aware of:
The Periodic Table is now a separate insert. From 2024 onwards, Edexcel stopped printing the Periodic Table on the back of the exam paper — it's now provided as a detached insert. So when you're practising with older past papers, don't panic if it's printed differently. In the real exam, you'll have it as a loose sheet you can keep beside you.
Formula sheets are continuing. Formulae and equation sheets will be provided for 2026 and 2027 exams. For Chemistry this mainly affects the Combined Science route — you still need to know your calculations (moles, concentration, etc.) — but it's good to know nothing is being taken away.
What about revision guides and textbooks? If yours say "2016 onwards" or "Issue 3," they're still completely accurate for 2026. No need to buy anything new.
What are the Edexcel GCSE Chemistry grade boundaries for Foundation tier?
Foundation tier (Papers 1F and 2F) is marked out of 200 and the highest grade available is Grade 5. Recent boundaries have been:
Grade 5: 110 (2022), 124 (2023), 119 (2024), 124 (2025) — we recommend that you aim for around 120–125 marks in total if you want to achieve Grade 5.
Grade 4: 87 (2022), 103 (2023), 99 (2024), 104 (2025) — we recommend that you generally aim for around 100 marks in total to stay safely above this threshold.
What are the Edexcel GCSE Chemistry grade boundaries for Higher tier?
Higher tier (Papers 1H and 2H) is also marked out of 200 and gives access to Grades 4–9. Recent boundaries have been:
Grade 9: 159 (2023), 148 (2024), 161 (2025) — aim for 150+ marks in total.
Grade 7: 125 (2023), 109 (2024), 128 (2025) — aim for 120+ marks in total.
Grade 4: 54 (2023), 45 (2024), 62 (2025) — typically around 50–60 marks in total though this varies most with paper difficulty.
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