Science
Stage 5
Paper 1
2025
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 [ ].
3133_01_4RP
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2
1
The Arctic fox lives in a cold and snowy environment.
(a) The Arctic fox is adapted to be a predator.
Describe two of these adaptations.
1
2
[2]
(b) The Arctic fox is adapted to live in the cold and snowy environment.
Describe two of these adaptations.
1
2
[2]
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3
2
This question is about the particle model of solids, liquids and gases.
(a) Copper is a solid.
Complete the box to show the particle model of copper.
Use
as a particle of copper.
copper
[1]
(b) Helium is a gas.
Complete the box to show the particle model of helium.
Use
as a particle of helium.
helium
[1]
(c) Water is a liquid.
Complete the box to show the particle model of water.
Use
as a particle of water.
water
[1]
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4
3
This question is about forces.
Look at the force diagram of a sailing boat moving across the sea.
direction of movement of sailing boat
B
A
(a) What is the name of the force labelled A?
Circle the correct answer.
air resistance
gravity
normal force
upthrust
[1]
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(b) What is the name of the force labelled B?
Circle the correct answer.
air resistance
gravity
normal force
upthrust
[1]
(c) Air resistance, gravity, normal force and upthrust are all forces that act on the
sailing boat.
Write down the name of two other forces that act on the sailing boat.
1
2
[2]
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6
4
Priya investigates the germination of plant seeds.
In her first experiment she:
•
fills a plant pot with soil
•
places one plant seed into the soil
•
pours some water onto the soil
•
places the pot into a room
•
measures the temperature of the room
•
measures the time it takes for the seed to germinate.
room
seed
soil in a plant pot
She repeats the experiment four more times.
Each time she changes the temperature of the room.
The temperatures she uses are 5 °C, 10 °C, 15 °C, 20 °C and 25 °C.
(a) Predict what happens to the time it takes the seeds to germinate as the
temperature increases.
[1]
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(b) Write down the name of the dependent variable in this investigation.
[1]
(c) Describe how Priya knows when the seeds germinate.
[1]
(d) Priya always uses seeds from the same plant.
Explain why.
[1]
(e) The soil Priya uses sometimes contains harmful bacteria.
Suggest one way she reduces the risk from these harmful bacteria.
[1]
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5
Ahmed investigates the maximum mass of different substances that dissolve in
100 cm3 of water.
In his first experiment he:
• step 1 - pours 100 cm3 of water into a beaker
• step 2 - adds a spoonful of glucose to the water
spoon
glucose
100 cm3 water
• step 3 - stirs the mixture until the glucose dissolves
• step 4 - repeats step 2 and step 3 until no more glucose dissolves in the water
• step 5 - records the total number of spoonfuls of glucose added.
He repeats this experiment using different substances instead of glucose.
Look at the results table.
substance
number of spoonfuls added
glucose
24
fertiliser
20
coffee
10
chalk
does not dissolve
salt
24
(a) Explain why Ahmed stirs the mixture in step 3.
[1]
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(b) Ahmed repeats the experiments with each solid again.
Explain why this is a good idea.
[1]
(c) Which substance does not form a solution when mixed with water?
[1]
(d) Ahmed cannot tell which substance dissolves most in the water.
Explain why.
[1]
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10
6
Mia investigates four solid blocks, A, B, C and D.
She does five experiments.
In her first experiment she moves block A towards block B.
block A
block B
Mia repeats the experiment four more times using the blocks shown in the table.
experiment
result
A is moved towards B
A repels B
A is moved towards C
A attracts C
A is moved towards D
there is no attraction between A and D
B is moved towards C
B repels C
C is moved towards D
there is no attraction between C and D
(a) Three of the blocks are magnets.
Write the letters of the three blocks that are magnets.
Explain your answer.
[2]
(b) One of the blocks is made of plastic.
Write the letter of the block that is made of plastic.
[1]
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(c) Describe the difference between a magnetic material and a magnet.
[1]
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7
This question is about the Sun, Earth and Moon.
The dotted lines on the diagram show the orbit of the Earth and the orbit
of the Moon.
Sun
Moon
Earth
Not drawn to scale
(a) Draw an arrow on the diagram to show the direction of movement of
the Earth around the Sun.
[1]
(b) How many days does it take for the Earth to complete one orbit around
the Sun?
[1]
days
(c) The Moon is a natural satellite.
Explain why the Moon is a natural satellite.
[1]
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8
The list shows some of the organs of the human digestive system.
anus
large intestine
mouth
oesophagus
small intestine
stomach
(a) Food enters the human digestive system at the mouth.
Complete the boxes to show the order food passes through the human
digestive system.
Choose from the list of organs.
One has been done for you.
food enters
mouth
…………………………
…………………………
…………………………
…………………………
food leaves
…………………………
[2]
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(b) Describe the function of the stomach.
[1]
(c) Describe the function of the small intestine.
[1]
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9
This question is about condensation and evaporation.
(a) Explain why condensation is the reverse process to evaporation.
[2]
(b) Describe what happens to the particles of water during the evaporation
of water.
[2]
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16
10 The Earth is surrounded by a layer of air.
The list shows some of the gases that are in this layer of air.
carbon monoxide
nitrogen
oxygen
sulfur dioxide
water vapour
(a) Some of these gases are examples of pollution.
What is meant by the word pollution?
[2]
(b) Write down the names of two gases from the list that are examples
of pollution.
and
[2]
(c) What is the name of the layer of air that surrounds the Earth?
[1]
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Local Examinations Syndicate (UCLES), which is a department of the University of Cambridge.
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