mbined
OCR GCSE
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2025.pdf
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20
_2025//2026 OCR GCSE Package Deal | Complete Exam
Page
Question
1 Papers with Marking Schemes, Foundation & Higher
1 Tier Bu
2025 OCR GCSE Combined Science A (Gateway Science)
J250/03 Chemistry (Foundation Tier)
Complete Question paper with Marking Scheme Combined
Monday 19 May 2025 – Morning
GCSE (9–1) Combined Science A
(Gateway Science)
J250/03 Chemistry (Foundation Tier)
Time allowed: 1 hour 10 minutes
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Combined
F
Science A (Chemistry) (inside this document)
You can use:
• a scientific or graphical calculator
• an HB penci
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use the lined
pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be given
for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 20 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/8687/2] OCR is an exempt Charity
DC (DE/JG) 353358/4 Turn over
mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
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Tier)
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2025.pdf
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20
,mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
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(Foundation
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2025.pdf
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20
_2025//2026 OCR GCSE Package Deal | Complete Exam
Page
Question
2 Papers with Marking Schemes, Foundation & Higher
2 Tier Bu
2
Section A
You should spend a maximum of 20 minutes on this section. Write
your answer to each question in the box provided.
1 Which state of matter is shown in the diagram?
A A gas
B A liquid
C A solid
D A solution
Your answer [1]
2 24 g of magnesium reacts with oxygen to make 40 g of magnesium oxide.
What mass of magnesium oxide is made when 12 g of magnesium reacts?
A 20 g
B 24 g
C 36 g
D 40 g
Your answer [1]
© OCR 2025
mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
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20
,mbined
OCR GCSE
Science
2025
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Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
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(Foundation
Complete
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20
_2025//2026 OCR GCSE Package Deal | Complete Exam
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Question
3 Papers with Marking Schemes, Foundation & Higher
3 Tier Bu
3
3 What type of change is shown in the diagram?
+
Iron Sulfur Iron sulfide
A A change of state
B A chemical change
C A physical change
D A reversible change
Your answer [1]
4 The diagram shows a chemical reaction.
Balance
g
Why does the mass on the balance decrease during the reaction?
A A gas is produced.
B A liquid is produced.
C A solid is produced.
D A solution is produced.
Your answer [1]
© OCR 2025 Turn over
mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
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J250-03
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Science)
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Tier)
(Foundation
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Chemistry
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Combined
paper
Scheme
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Monday
Marking
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2025.pdf
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20
,mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
Science)
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(Foundation
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Chemistry
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20
_2025//2026 OCR GCSE Package Deal | Complete Exam
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Question
4 Papers with Marking Schemes, Foundation & Higher
4 Tier Bu
4
5 Methane reacts with oxygen to make carbon dioxide and water.
CH4 + 2O2 CO2 + 2H2O
Which chemical is being oxidised?
A CH4
B CO2
C H2O
D O2
Your answer [1]
6 Which type of mixture can be separated using paper chromatography?
A A mixture of gases.
B A mixture of insoluble liquids.
C A mixture of insoluble solids.
D A mixture of soluble liquids.
Your answer [1]
7 Which particle in dilute hydrochloric acid, HCl, makes it acidic?
A Cl –
B H+
C H2O
D OH–
Your answer [1]
© OCR 2025
mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
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Science)
Chemistry
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2025.pdf
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20
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
Science)
Chemistry
J250-03
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(Foundation
Complete
Chemistry
Question
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(Foundation
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Combined
paper
Scheme
with
Monday
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Combined
19 May
Scheme
Monday
2025.pdf
Combined
19 MayMo
20
_2025//2026 OCR GCSE Package Deal | Complete Exam
Page
Question
1 Papers with Marking Schemes, Foundation & Higher
1 Tier Bu
2025 OCR GCSE Combined Science A (Gateway Science)
J250/03 Chemistry (Foundation Tier)
Complete Question paper with Marking Scheme Combined
Monday 19 May 2025 – Morning
GCSE (9–1) Combined Science A
(Gateway Science)
J250/03 Chemistry (Foundation Tier)
Time allowed: 1 hour 10 minutes
You must have:
• a ruler (cm/mm)
• the Data Sheet for GCSE (9–1) Combined
F
Science A (Chemistry) (inside this document)
You can use:
• a scientific or graphical calculator
• an HB penci
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
INSTRUCTIONS
• Use black ink. You can use an HB pencil, but only for graphs and diagrams.
• Write your answer to each question in the space provided. If you need extra space use the lined
pages at the end of this booklet. The question numbers must be clearly shown.
• Answer all the questions.
• Where appropriate, your answer should be supported with working. Marks might be given
for using a correct method, even if your answer is wrong.
INFORMATION
• The total mark for this paper is 60.
• The marks for each question are shown in brackets [ ].
• Quality of extended response will be assessed in questions marked with an asterisk (*).
• This document has 20 pages.
ADVICE
• Read each question carefully before you start your answer.
© OCR 2025 [601/8687/2] OCR is an exempt Charity
DC (DE/JG) 353358/4 Turn over
mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
Science)
Chemistry
J250-03
Tier)
(Foundation
Complete
Chemistry
Question
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Scheme
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Monday
Marking
Combined
19 May
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2025.pdf
Combined
19 MayMo
20
,mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
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Tier)
(Foundation
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Monday
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Monday
2025.pdf
Combined
19 MayMo
20
_2025//2026 OCR GCSE Package Deal | Complete Exam
Page
Question
2 Papers with Marking Schemes, Foundation & Higher
2 Tier Bu
2
Section A
You should spend a maximum of 20 minutes on this section. Write
your answer to each question in the box provided.
1 Which state of matter is shown in the diagram?
A A gas
B A liquid
C A solid
D A solution
Your answer [1]
2 24 g of magnesium reacts with oxygen to make 40 g of magnesium oxide.
What mass of magnesium oxide is made when 12 g of magnesium reacts?
A 20 g
B 24 g
C 36 g
D 40 g
Your answer [1]
© OCR 2025
mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
Science)
Chemistry
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Tier)
(Foundation
Complete
Chemistry
Question
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(Foundation
Complete
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Question
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Combined
paper
Scheme
with
Monday
Marking
Combined
19 May
Scheme
Monday
2025.pdf
Combined
19 MayMo
20
,mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
Science)
Chemistry
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Tier)
(Foundation
Complete
Chemistry
Question
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(Foundation
Complete
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Monday
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Monday
2025.pdf
Combined
19 MayMo
20
_2025//2026 OCR GCSE Package Deal | Complete Exam
Page
Question
3 Papers with Marking Schemes, Foundation & Higher
3 Tier Bu
3
3 What type of change is shown in the diagram?
+
Iron Sulfur Iron sulfide
A A change of state
B A chemical change
C A physical change
D A reversible change
Your answer [1]
4 The diagram shows a chemical reaction.
Balance
g
Why does the mass on the balance decrease during the reaction?
A A gas is produced.
B A liquid is produced.
C A solid is produced.
D A solution is produced.
Your answer [1]
© OCR 2025 Turn over
mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
Science)
Chemistry
J250-03
Tier)
(Foundation
Complete
Chemistry
Question
Tier)
(Foundation
Complete
paper Question
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Tier)Marking
Complete
paper
Scheme
Question
with Marking
Combined
paper
Scheme
with
Monday
Marking
Combined
19 May
Scheme
Monday
2025.pdf
Combined
19 MayMo
20
,mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
Science)
Chemistry
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Tier)
(Foundation
Complete
Chemistry
Question
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(Foundation
Complete
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2025.pdf
Combined
19 MayMo
20
_2025//2026 OCR GCSE Package Deal | Complete Exam
Page
Question
4 Papers with Marking Schemes, Foundation & Higher
4 Tier Bu
4
5 Methane reacts with oxygen to make carbon dioxide and water.
CH4 + 2O2 CO2 + 2H2O
Which chemical is being oxidised?
A CH4
B CO2
C H2O
D O2
Your answer [1]
6 Which type of mixture can be separated using paper chromatography?
A A mixture of gases.
B A mixture of insoluble liquids.
C A mixture of insoluble solids.
D A mixture of soluble liquids.
Your answer [1]
7 Which particle in dilute hydrochloric acid, HCl, makes it acidic?
A Cl –
B H+
C H2O
D OH–
Your answer [1]
© OCR 2025
mbined
OCR GCSE
Science
2025
Combined
OCR
A (Gateway
GCSE
Science
Combined
Science)
A (Gateway
J250-03
Science
Science)
Chemistry
A (Gateway
J250-03
(Foundation
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Chemistry
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Tier)
(Foundation
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Tier)
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Complete
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20
