OCR Gateway GCSE Combined Science past papers
OCR Gateway GCSE Combined Science June 2025 Paper 4
- J250/04
- Foundation
- Chemistry 2
- 1 hour 10 minutes
- 60 marks
Question paper, Mark scheme, Examiner report: on the OCR website.
Practise this paper's topics
5 new exam questions, 20 minutes, marked as you go. Free, no account.
- Rates of reaction, collisions and catalysts
- Reactivity, extraction and reduction
- Crude oil, alkanes, cracking and alkenes
- Group 1 and Group 7
- Life cycle assessment and recycling
What it tested
- Rates and equilibrium15 marks
- Atomic structure and the periodic table10 marks
- Chemical changes10 marks
- Organic chemistry9 marks
- The atmosphere8 marks
- Using resources8 marks
- Q1The periodic table, metals and noble gases1 mark
- Q2Atmospheric pollutants1 mark
- Q3Reactivity, extraction and reductionElectrolysis1 mark
- Q4Life cycle assessment and recycling1 mark
- Q5Reactivity, extraction and reduction1 mark
- Q6Rates of reaction, collisions and catalysts1 mark
- Q7Group 1 and Group 71 mark
- Q8Resources, potable water and waste water1 mark
8 more questions
- Q9Reversible reactions and equilibrium1 mark
- Q10Rates of reaction, collisions and catalysts1 mark
- Q11Crude oil, alkanes, cracking and alkenesGreenhouse gases, climate change and carbon footprints9 marks
- Q12Group 1 and Group 78 marks
- Q13The atmosphere, then and nowGreenhouse gases, climate change and carbon footprints7 marks
- Q14Life cycle assessment and recycling6 marks
- Q15Reactivity, extraction and reductionExothermic and endothermic reactions, reaction profiles8 marks
- Q16Rates of reaction, collisions and catalystsTests for gases12 marks
June 2025 Foundation grade boundaries
Marks needed across all six Foundation papers, out of 360.
- 5-5212
- 5-4194
- 4-4176
- 4-3155
- 3-3134
- 3-2113
- 2-292
- 2-171
- 1-150
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