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Official summer 2024 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/2H Higher Tier Paper 2 Life and Environmental Sciences Merged Question Paper + Mark Scheme + Inserts$7.99
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Official summer 2024 AQA GCSE COMBINED SCIENCE: SYNERGY 8465/2H Higher Tier Paper 2 Life and Environmental Sciences Merged Question Paper + Mark Scheme + Inserts
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Course
Official summer 2024 AQA GCSE
Institution
Official Summer 2024 AQA GCSE
Official summer 2024
AQA
GCSE
COMBINED SCIENCE: SYNERGY
8465/2H
Higher Tier Paper 2 Life and Environmental Sciences
Merged Question Paper + Mark Scheme + Inserts
Candidate signature _________________________________________________________________________
I declare this is my own work.
GCSE
COMBINED SCIENCE: SYNERGY
Higher Tier Paper 2 Life and Environmental Sciences
H
Wednesday 22 May 2024 Morning Time allowed: 1 hour 45 minutes
Materials For Examiner’s Use
For this paper you must have:
l a ruler
Question Mark
l a protractor 1
l a scientific calculator
l the periodic table (enclosed)
2
l the Physics Equations Sheet (enclosed). 3
4
Instructions
l Use black ink or black ball-point pen. 5
l Pencil should only be used for drawing. 6
l Fill in the boxes at the top of this page.
Answer all questions in the spaces provided. Do not write outside the box
l
7
around each page or on blank pages. 8
l
If you need extra space for your answer(s), use the lined pages at the end of
TOTAL
this book. Write the question number against your answer(s).
l
Do all rough work in this book. Cross through any work you do not want to
be marked.
l In all calculations, show clearly how you work out your answer.
Information
l The maximum mark for this paper is 100.
l The marks for questions are shown in brackets.
l You are expected to use a calculator where appropriate.
l
You are reminded of the need for good English and clear presentation in your answers.
(JUN2484652H01)
G/LM/Jun24/G4001/E4 8465/2H
, 2
Do not write
outside the
box
0 1 Two students analysed water from four rivers.
Each student measured the pH of the river water using a different method.
Table 1 shows the results.
Table 1
pH of river water
River
Method A Method B
W 7 7.4
X 6 6.5
Y 8 8.1
Z 7 7.6
0 1 . 1 Suggest what was used to measure the pH in each method.
[2 marks]
Method A ________________________________________________________
Method B ________________________________________________________
0 1 . 2 Why is it not valid to calculate a mean of the two pH values for each river?
[1 mark]
Tick () one box.
A mean cannot be calculated from only two values.
Each method gives values to a different resolution.
The mean should be calculated for each method using all four samples.
(02)
G/Jun24/8465/2H
, 3
Do not write
outside the
box
0 1 . 3 Complete the sentence.
Choose the answer from the box.
[1 mark]
accurate repeatable reproducible
Method A and method B gave similar results.
This shows that the results are _________________________________.
0 1 . 4 Which river is most likely to be in an area with a high concentration
of sulfur dioxide in the air?
Use Table 1.
[1 mark]
Tick () one box.
W X Y Z
0 1 . 5 Explain your answer to Question 01.4.
[3 marks]
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