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Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signat ure
I declare this is my own work.
GCSE
COMBINED SCIENCE: TRILOGY
Foundation Tier
F
Chemistry Paper 2F
Tuesday 11 June 2024 Morning Time allowed: 1 hour 15 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator
1
• the periodic table (enclosed).
2
Instructions 3
• Use black ink or black ball-point pen.
4
• Pencil should only be used for drawing.
• Fill in the boxes at the top of this page. 5
• Answer all questions in the spaces provided. 6
• If you need extra space for your answer(s), use the lined pages at the end of 7
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want to be TOTAL
marked.
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 70.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation in your answers.
IB/M/Jun24/G4005/E7 8464/C/2F
, 2
Do not write
outside the
0 1 The Earth’s atmosphere has changed during the last 4.6 billion years. box
0 1 . 1 What is the approximate percentage of nitrogen and of oxygen in the
Earth’s atmosphere today?
Draw one line from each gas to the percentage of that gas.
[2 marks]
0 1 . 2 The approximate percentage of carbon dioxide in the Earth’s early atmosphere
was 95%.
Which are two reasons why the percentage of carbon dioxide has decreased since
the Earth’s early atmosphere?
[2 marks]
Tick (✓) two boxes.
Combustion of fuels
Deforestation
Dissolving in oceans
Photosynthesis
Respiration
IB/M/Jun24/8464/C/2F
, 3
Do not write
outside the
0 1 . 3 Figure 1 shows the change in the percentage of carbon dioxide in the Earth’s box
atmosphere from 1800 to 2020.
Figure 1
Describe the trend in the percentage of carbon dioxide in the Earth’s atmosphere
from 1800 to 2020.
Use data from Figure 1.
[3 marks]
Turn over ►
IB/M/Jun24/8464/C/2F
, 4
Do not write
outside the
Carbon dioxide is a greenhouse gas. box
0 1
. 4 Which of the following is also a greenhouse gas?
[1 mark]
Tick (✓) one box.
Argon
Methane
Nitrogen
Oxygen
0 1 . 5 Which of the following is an environmental problem caused by greenhouse gases?
[1 mark]
Tick (✓) one box.
Acid rain
Climate change
Global dimming
IB/M/Jun24/8464/C/2F
Please write clearly in block capitals.
Centre number Candidate number
Surname
Forename(s)
Candidate signat ure
I declare this is my own work.
GCSE
COMBINED SCIENCE: TRILOGY
Foundation Tier
F
Chemistry Paper 2F
Tuesday 11 June 2024 Morning Time allowed: 1 hour 15 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator
1
• the periodic table (enclosed).
2
Instructions 3
• Use black ink or black ball-point pen.
4
• Pencil should only be used for drawing.
• Fill in the boxes at the top of this page. 5
• Answer all questions in the spaces provided. 6
• If you need extra space for your answer(s), use the lined pages at the end of 7
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want to be TOTAL
marked.
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 70.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation in your answers.
IB/M/Jun24/G4005/E7 8464/C/2F
, 2
Do not write
outside the
0 1 The Earth’s atmosphere has changed during the last 4.6 billion years. box
0 1 . 1 What is the approximate percentage of nitrogen and of oxygen in the
Earth’s atmosphere today?
Draw one line from each gas to the percentage of that gas.
[2 marks]
0 1 . 2 The approximate percentage of carbon dioxide in the Earth’s early atmosphere
was 95%.
Which are two reasons why the percentage of carbon dioxide has decreased since
the Earth’s early atmosphere?
[2 marks]
Tick (✓) two boxes.
Combustion of fuels
Deforestation
Dissolving in oceans
Photosynthesis
Respiration
IB/M/Jun24/8464/C/2F
, 3
Do not write
outside the
0 1 . 3 Figure 1 shows the change in the percentage of carbon dioxide in the Earth’s box
atmosphere from 1800 to 2020.
Figure 1
Describe the trend in the percentage of carbon dioxide in the Earth’s atmosphere
from 1800 to 2020.
Use data from Figure 1.
[3 marks]
Turn over ►
IB/M/Jun24/8464/C/2F
, 4
Do not write
outside the
Carbon dioxide is a greenhouse gas. box
0 1
. 4 Which of the following is also a greenhouse gas?
[1 mark]
Tick (✓) one box.
Argon
Methane
Nitrogen
Oxygen
0 1 . 5 Which of the following is an environmental problem caused by greenhouse gases?
[1 mark]
Tick (✓) one box.
Acid rain
Climate change
Global dimming
IB/M/Jun24/8464/C/2F
