Science
Stage 5
Paper 2
2023
35 minutes
No additional materials are needed.
INSTRUCTIONS
• Answer all questions.
• Write your answer to each question in the space provided.
• You should show all your working on the question paper.
INFORMATION
• The total mark for this paper is 40.
• The number of marks for each question or part question is shown in brackets [ ].
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© UCLES 2023
2
1
Polar bears are large mammals that live in a very cold environment.
They are predators and eat smaller mammals such as seals.
(a) Describe two ways in which polar bears are adapted to live in a very cold
environment.
1
2
[2]
(b) Polar bears are adapted to be successful predators.
Describe two of these adaptations.
1
2
[2]
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3
2
There are three states of matter: solid, liquid and gas.
The diagrams show the particle models of a solid and a liquid.
process A
process B
solid
liquid
(a) Write down the names of process A and process B.
A
B
[2]
(b) The particle model of a solid is different to that of a liquid.
Describe one difference between the particle model of a solid and of a liquid.
[1]
(c) Describe one similarity between the particle model of a solid and of a liquid.
[1]
(d) Draw the particle model for a gas in the box.
[1]
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4
3
This is a diagram of a drum.
drum stick
material
drum shell
A drum is a musical instrument.
A drum has a material stretched over the drum shell.
The material is hit by a drum stick to make a sound.
The smaller the drum shell the higher the pitch of the sound.
The tighter the material is stretched over the drum shell the higher the pitch.
(a) Ahmed hits the material of a drum with a drum stick.
What happens to the material as it makes a sound?
[1]
(b) Suggest one way Ahmed makes a louder sound with the drum.
[1]
(c) Ahmed makes two changes to the drum.
The drum now makes a sound with a lower pitch.
Describe the two changes he makes to the drum.
1
2
[2]
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5
4
The Earth is surrounded by a layer of air.
The layer of air contains many gases.
(a) What is the name of the layer of air surrounding the Earth's surface?
[1]
(b) Water vapour is one gas found in this layer of air.
Write down the names of three other gases found in this layer of air.
1
2
3
[2]
(c) Some gases are in the layer of air because of pollution.
Describe the meaning of the word pollution.
[2]
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6
5
Some flowering plants are adapted to attract insects such as bees.
These plants often have coloured flowers.
Chen and Priya investigate which colour of flower is best at attracting bees.
Chen and Priya:
•
•
choose plants that have different coloured flowers
count how many bees enter each different coloured flower in one hour.
Look at their results.
colour of flower
number of bees
blue
20
red
9
white
5
yellow
14
(a) Circle three variables they control in this investigation.
Choose from the list.
colour of flower
number of bees
number of flowers of each colour
time
type of plant
[2]
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(b) Describe one safety risk when doing this investigation.
[1]
(c) Priya thinks it is better to count how many bees enter each different coloured
flower in two hours rather than one hour.
Explain why this is a good idea.
[1]
(d) Complete the conclusion for this investigation.
flowers than any other
More bees are attracted to
colour of flower.
[1]
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8
6
Boiling and evaporation are similar processes.
(a) Complete the sentence.
The boiling point of a substance is the
a
becomes a
at which
.
[2]
(b) The evaporation of water makes water vapour.
What happens to the speed of the water particles during evaporation?
Use ideas about the particle model.
[1]
(c) The speed of evaporation of water increases as the temperature increases.
Explain why, using ideas about the particle model.
[1]
(d) Write down the name of the process which is the reverse of evaporation.
[1]
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9
7
Lily has two magnets.
(a) Describe the difference between a magnet and a magnetic material.
magnet
magnetic material
[1]
(b) The diagram shows two magnets close to each other.
N
S
N
S
There is a force acting between the two magnets.
Describe the force acting between the two magnets.
[1]
(c) Lily moves the magnets away from each other.
N
S
N
S
Describe what happens to the size of the force acting between the two magnets.
[1]
(d) The diagram shows two magnets close to each other.
N
S
S
N
Describe the force acting between the two magnets.
[1]
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10
8
This question is about forces.
Choose answers from the list of forces.
Each force can be used once, more than once or not at all.
air resistance
applied
friction
gravity
normal
upthrust
water resistance
(a) Which force acts towards the centre of the Earth?
[1]
(b) Which force acts between the tyre of a car and the road?
[1]
(c) Write down the names of three forces that act against the direction of motion.
1
2
3
[2]
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11
9
The diagram shows a cross section through a flower.
Z
W
X
Y
Draw a line to match each letter to the correct part of the flower.
letter
part
anther
W
filament
X
ovary
Y
petal
Z
stigma
style
[2]
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12
10 Saturn has many natural satellites.
They have been discovered by scientists using telescopes.
The table shows information about five of these natural satellites.
name
diameter
in km
year discovered
Ariel
1200
1851
Miranda
470
1948
Oberon
1500
1787
Titania
1600
1787
Umbriel
1200
1851
(a) Describe the meaning of the words natural satellite.
[1]
(b) Miranda was discovered much later than the other natural satellites.
Suggest why using information from the table.
[1]
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Local Examinations Syndicate (UCLES), which is a department of the University of Cambridge.
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