Please check the examination details below before entering your candidate information
Candidate surname Other names
May 2025 Pearson Edexcel: GCSE (9–1)
Centre Number Candidate Number Combined Science ISCO/IBF – Paper 1:
Combined Science (Foundation Tier) – Merged
Question Paper & Mark Scheme
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Tuesday 13 May 2025
Afternoon (Time: 1 hour 10 minutes) Paper
reference 1SC0/1BF
Combined Science 🟐 🟐
PAPER 1
Foundation Tier
You must have: Total Marks
Ruler, calculator
Instructions
•• Use black ink or ball‑point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 60.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Instructure
questions marked with an asterisk (*), marks will be awarded for your ability to
your answer logically, showing how the points that you make are related
or follow on from each other where appropriate.
Advice
• Read each question carefully before you start to answer it.
• Try to answer every question.
• your answers if you have time at the end.
Check
Turn over
P78699RRA
©2025 Pearson Education Ltd.
Y:1/1/1/1/1
, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 (a) Genes control natural hair colour in humans.
(i) Which term describes the differences in hair colour?
(1)
A variation
B tissue culture
C elongation
D fertilisation
(ii) Genes are found on chromosomes.
Name the part of the human cell where chromosomes are found.
(1)
DO NOT WRITE IN THIS AREA
. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................
(b) The hair colour of 24 students was recorded.
Figure 1 shows the results.
brown black blonde black blonde brown
black black red brown brown black
blonde brown black brown brown blonde
brown blonde blonde black brown brown
Figure 1
(i) Complete Figure 2 to show the tally and the total for brown hair.
DO NOT WRITE IN THIS AREA
(2)
hair colour
black blonde brown red
total = 7 total = 6 total = total = 1
Figure 2
2
■■■■
, (ii) Complete the bar chart to show the totals in Figure 2 and label the x‑axis.
(3)
DO NOT WRITE IN THIS AREA
12
10
8
number of
students 6
4
2
0
black . .. .. ... .. .. ... .. ... .. .. . . .. .. ... .. .. ... .. ... .. .. . . .. .. ... .. .. ... .. ... .. .. .
. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .
DO NOT WRITE IN THIS AREA
(Total for Question 1 = 7 marks)
DO NOT WRITE IN THIS AREA
3
■■■■ Turn over
, 2 (a) Figure 3 shows a sperm cell.
R
DO NOT WRITE IN THIS AREA
S
T
Figure 3
(i) Name the part labelled R.
(1)
. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. . ......................
(ii) Draw one straight line from each part of the sperm cell to its function.
DO NOT WRITE IN THIS AREA
(2)
part of the sperm cell function
produces glucose
releases energy
S
controls the cell
T
DO NOT WRITE IN THIS AREA
helps the sperm enter the egg
helps the egg enter the sperm
4
■■■■
Candidate surname Other names
May 2025 Pearson Edexcel: GCSE (9–1)
Centre Number Candidate Number Combined Science ISCO/IBF – Paper 1:
Combined Science (Foundation Tier) – Merged
Question Paper & Mark Scheme
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Tuesday 13 May 2025
Afternoon (Time: 1 hour 10 minutes) Paper
reference 1SC0/1BF
Combined Science 🟐 🟐
PAPER 1
Foundation Tier
You must have: Total Marks
Ruler, calculator
Instructions
•• Use black ink or ball‑point pen.
Fill in the boxes at the top of this page with your name,
centre number and candidate number.
•• Answer all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
Information
•• The total mark for this paper is 60.
The marks for each question are shown in brackets
– use this as a guide as to how much time to spend on each question.
• Instructure
questions marked with an asterisk (*), marks will be awarded for your ability to
your answer logically, showing how the points that you make are related
or follow on from each other where appropriate.
Advice
• Read each question carefully before you start to answer it.
• Try to answer every question.
• your answers if you have time at the end.
Check
Turn over
P78699RRA
©2025 Pearson Education Ltd.
Y:1/1/1/1/1
, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you change your mind about an
DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 (a) Genes control natural hair colour in humans.
(i) Which term describes the differences in hair colour?
(1)
A variation
B tissue culture
C elongation
D fertilisation
(ii) Genes are found on chromosomes.
Name the part of the human cell where chromosomes are found.
(1)
DO NOT WRITE IN THIS AREA
. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. . . . ......................
(b) The hair colour of 24 students was recorded.
Figure 1 shows the results.
brown black blonde black blonde brown
black black red brown brown black
blonde brown black brown brown blonde
brown blonde blonde black brown brown
Figure 1
(i) Complete Figure 2 to show the tally and the total for brown hair.
DO NOT WRITE IN THIS AREA
(2)
hair colour
black blonde brown red
total = 7 total = 6 total = total = 1
Figure 2
2
■■■■
, (ii) Complete the bar chart to show the totals in Figure 2 and label the x‑axis.
(3)
DO NOT WRITE IN THIS AREA
12
10
8
number of
students 6
4
2
0
black . .. .. ... .. .. ... .. ... .. .. . . .. .. ... .. .. ... .. ... .. .. . . .. .. ... .. .. ... .. ... .. .. .
. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .
DO NOT WRITE IN THIS AREA
(Total for Question 1 = 7 marks)
DO NOT WRITE IN THIS AREA
3
■■■■ Turn over
, 2 (a) Figure 3 shows a sperm cell.
R
DO NOT WRITE IN THIS AREA
S
T
Figure 3
(i) Name the part labelled R.
(1)
. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. .. ... .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. .. .. .. ... .. .. ... .. ... .. .. ... .. .. ... .. .. ... .. ... .. .. . ......................
(ii) Draw one straight line from each part of the sperm cell to its function.
DO NOT WRITE IN THIS AREA
(2)
part of the sperm cell function
produces glucose
releases energy
S
controls the cell
T
DO NOT WRITE IN THIS AREA
helps the sperm enter the egg
helps the egg enter the sperm
4
■■■■
