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Direct answer
This page hosts StudyVector’s independent 2026 GCSE Chemistry A (Gateway Science) Paper 3 Higher predicted-practice paper modelled on J248/03,90 marks over 105 minutes. Predicted focus topics: Particles, Elements, Compounds & Mixtures, Chemical Reactions, Predicting & Identifying. It is not an official paper, not a leaked paper and not a guarantee — students should still revise the full specification and verify against official past papers from OCR.
- Qualification
- GCSE Chemistry A (Gateway Science)
- Exam board model
- OCR
- Paper code
- J248/03
- Total marks
- 90 marks
- Time allowed
- 105 minutes
- Last reviewed
- 16 May 2026
StudyVector is independent revision support, not affiliated with AQA, Edexcel, OCR, JCQ or any exam provider. Always verify topic coverage with your exam-board specification.
Predicted paper
OCR GCSE Chemistry 2026 Predicted Practice Paper — Paper 3 Higher
GCSE Chemistry A (Gateway Science) · OCR-style · 105 minutes · 90 marks
Modelled component: J248/03 · Tier: Higher · Calculator permitted
J248/03 model: 90 marks, 105 minutes.
Prediction type: predicted_paper · Evidence mode: historical · Full-length original StudyVector predicted-practice paper modelled on public exam-board structure. It is not official, leaked or guaranteed.
Evidence basis: public exam-board specification structure, historical topic weighting patterns, StudyVector practice-quality review.
AI-generated practice paper. Not an official OCR-style paper, not leaked exam content, and not an exam-board endorsement.
66
0–100 model (higher = more demanding)
- Particles
- Elements, Compounds & Mixtures
- Chemical Reactions
- Predicting & Identifying
Preview mode
0/28 questions attempted · score 0/90 (0%)
Answer ALL questions. Write your answers in the spaces provided. You must write down all the stages in your working.
Section A
Multiple choice questions. Answer ALL the questions.
Question SECTION-A1 (1 mark)
Which statement is most accurate for Particles?
(Total for Question SECTION-A1 is 1 mark)
Question SECTION-A2 (1 mark)
Which statement is most accurate for Elements, Compounds & Mixtures?
(Total for Question SECTION-A2 is 1 mark)
Question SECTION-A3 (1 mark)
Which statement is most accurate for Chemical Reactions?
(Total for Question SECTION-A3 is 1 mark)
Question SECTION-A4 (1 mark)
Which statement is most accurate for Predicting & Identifying?
(Total for Question SECTION-A4 is 1 mark)
Question SECTION-A5 (1 mark)
Which statement is most accurate for Particles?
(Total for Question SECTION-A5 is 1 mark)
Question SECTION-A6 (1 mark)
Which statement is most accurate for Elements, Compounds & Mixtures?
(Total for Question SECTION-A6 is 1 mark)
Question SECTION-A7 (1 mark)
Which statement is most accurate for Chemical Reactions?
(Total for Question SECTION-A7 is 1 mark)
Question SECTION-A8 (1 mark)
Which statement is most accurate for Predicting & Identifying?
(Total for Question SECTION-A8 is 1 mark)
Question SECTION-A9 (1 mark)
Which statement is most accurate for Particles?
(Total for Question SECTION-A9 is 1 mark)
Question SECTION-A10 (1 mark)
Which statement is most accurate for Elements, Compounds & Mixtures?
(Total for Question SECTION-A10 is 1 mark)
Question SECTION-A11 (1 mark)
Which statement is most accurate for Chemical Reactions?
(Total for Question SECTION-A11 is 1 mark)
Question SECTION-A12 (1 mark)
Which statement is most accurate for Predicting & Identifying?
(Total for Question SECTION-A12 is 1 mark)
Question SECTION-A13 (1 mark)
Which statement is most accurate for Particles?
(Total for Question SECTION-A13 is 1 mark)
Question SECTION-A14 (1 mark)
Which statement is most accurate for Elements, Compounds & Mixtures?
(Total for Question SECTION-A14 is 1 mark)
Question SECTION-A15 (1 mark)
Which statement is most accurate for Chemical Reactions?
(Total for Question SECTION-A15 is 1 mark)
Section B
Structured and extended response questions. Answer ALL the questions.
Question SECTION-B1 (3 marks)
GCSE GCSE Chemistry A (Gateway Science) Predicting & Identifying question. A student carries out a reaction or analysis linked to predicting & identifying. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B1 is 3 marks)
Question SECTION-B2 (3 marks)
GCSE GCSE Chemistry A (Gateway Science) Particles question. A student carries out a reaction or analysis linked to particles. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B2 is 3 marks)
Question SECTION-B3 (4 marks)
GCSE GCSE Chemistry A (Gateway Science) Elements, Compounds & Mixtures question. A student carries out a reaction or analysis linked to elements, compounds & mixtures. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B3 is 4 marks)
Question SECTION-B4 (5 marks)
GCSE GCSE Chemistry A (Gateway Science) Chemical Reactions question. A student carries out a reaction or analysis linked to chemical reactions. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B4 is 5 marks)
Question SECTION-B5 (5 marks)
GCSE GCSE Chemistry A (Gateway Science) Predicting & Identifying question. A student carries out a reaction or analysis linked to predicting & identifying. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B5 is 5 marks)
Question SECTION-B6 (6 marks)
GCSE GCSE Chemistry A (Gateway Science) Particles question. A student carries out a reaction or analysis linked to particles. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B6 is 6 marks)
Question SECTION-B7 (6 marks)
GCSE GCSE Chemistry A (Gateway Science) Elements, Compounds & Mixtures question. A student carries out a reaction or analysis linked to elements, compounds & mixtures. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B7 is 6 marks)
Question SECTION-B8 (7 marks)
GCSE GCSE Chemistry A (Gateway Science) Chemical Reactions question. A student carries out a reaction or analysis linked to chemical reactions. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B8 is 7 marks)
Question SECTION-B9 (7 marks)
GCSE GCSE Chemistry A (Gateway Science) Predicting & Identifying question. A student carries out a reaction or analysis linked to predicting & identifying. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B9 is 7 marks)
Question SECTION-B10 (8 marks)
GCSE GCSE Chemistry A (Gateway Science) Particles question. A student carries out a reaction or analysis linked to particles. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B10 is 8 marks)
Question SECTION-B11 (8 marks)
GCSE GCSE Chemistry A (Gateway Science) Elements, Compounds & Mixtures question. A student carries out a reaction or analysis linked to elements, compounds & mixtures. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B11 is 8 marks)
Question SECTION-B12 (6 marks)
GCSE GCSE Chemistry A (Gateway Science) Chemical Reactions question. A student carries out a reaction or analysis linked to chemical reactions. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B12 is 6 marks)
Question SECTION-B13 (7 marks)
GCSE GCSE Chemistry A (Gateway Science) Predicting & Identifying question. A student carries out a reaction or analysis linked to predicting & identifying. Explain the key particle-level idea, describe the expected observation or calculation route, and evaluate one source of error in the method.
(Total for Question SECTION-B13 is 7 marks)
Train weak areas
Turn this paper into targeted practice. Start with the topics where you lost marks, then come back and resit the same style of question.