Cambridge Primary Checkpoint

SCIENCE
0846/01
Paper 1
October 2021
45 minutes
You must answer on the question paper.
No additional materials are needed.
INSTRUCTIONS
• Answer all questions.
• Use a black or dark blue pen. You may use an HB pencil for any diagrams or graphs.
• Write your name, centre number and candidate number in the boxes at the top of the page.
• Write your answer to each question in the space provided.
• Do not use an erasable pen or correction fluid.
• Do not write on any bar codes.
• You should show all your working in the booklet.
• You may use a calculator.
INFORMATION
• The total mark for this paper is 50.
• The number of marks for each question or part question is shown in brackets [ ].
This document has 24 pages. Any blank pages are indicated.
IB21 10_0846_01/7RP
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1
Lily pollinates a flower using a cotton bud.
Lily
flower
cotton bud
(a) Lily draws a picture of the cotton bud.
X
cotton bud
X are made by the male organ of a flower.
Write down the name of X.
[1]
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(b) Lily uses X to pollinate the flower.
What part of the flower is pollinated?
Circle the correct answer.
anther
ovum
petal
stamen
stigma
[1]
(c) Lily uses a cotton bud to pollinate a flower.
Write down the name of one animal that pollinates a flower.
[1]
2
Complete the sentences about sound.
A sound is made when an object
The
.
describes how high or low a sound is.
Sounds can also be loud or
.
[3]
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3
Mia and Safia use a compass to test different materials.
compass
needle
E
N
W
N
S
W
W
S
N
E
S
E
The compass needle moves when the needle is near a magnetic material.
Complete the sentence.
Choose from the list.
copper
iron
plastic
steel
The compass needle moves when the needle is near
and
.
[1]
4
Copper is a very useful material.
Copper is used to make cooking pots and electrical wires.
Tick () the correct property of copper.
dull
high melting point
soft
soluble in water
weak
[1]
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5
Mike connects an electrical circuit.
Both lamps light up.
Complete the circuit diagram for his electrical circuit.
Choose from these symbols.
[3]
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6
(a) The diagram shows the bones and muscles of the arm.
muscle A
muscle B
Describe what happens to muscles A and B when you straighten your arm.
muscle A
muscle B
[2]
(b) This picture shows part of the skeleton.
This part of the skeleton protects two organs.
Write down the names of these two organs.
.
and
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7
7
Chen makes a model of part of the Solar System.
C
B
Not drawn to scale
A
D
(a) Chen has not labelled the model.
Draw a line from each letter to the correct label.
letter
label
A
axis
B
Earth
C
orbit
D
Sun
[2]
(b) What causes the apparent movement of the Sun across the sky?
[1]
(c) How much time does it take for D to completely travel around B?
[1]
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8
Gabriella investigates what happens when substances are added to water.
Gabriella:
•
puts 10 cm3 of cold water in a test-tube
•
measures the temperature of the water at the start
•
adds 1 g of substance to the water
•
stirs the mixture
•
measures the temperature of the water at the end.
Here is her results table.
appearance
substance
of substance
ammonium
chloride
white
solid
temperature
of water at
start in °C
temperature of
water at end
in °C
other
observations
20
10
dissolves to give
a colourless
solution
calcium
silver / grey
solid
20
30
fizzes and gives
off a colourless
gas and makes
a milky solution
ethanol
colourless
liquid
20
20
dissolves to give
a colourless
solution
sodium
chloride
white
solid
20
dissolves to give
a colourless
solution
20
(a) Gabriella wants to use one of the substances to cool some water.
Write down the name of the substance she uses.
[1]
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(b) Sodium chloride dissolves in water.
This process is reversible.
Describe how Gabriella reverses this process to get solid sodium chloride.
[1]
(c) Look at the table.
What evidence is there that adding calcium to water is an irreversible process?
[1]
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9
Blessy heats some materials in a test-tube.
material
heat
Here is her results table.
material
appearance of material
observations when heated
A
colourless solid
turns into a colourless liquid
B
white solid
remains a white solid
C
green solid
changes to a black solid
D
white solid
changes into a colourless liquid
E
colourless liquid
turns into steam
(a) Name one piece of safety equipment Blessy wears during the experiment.
[1]
(b) Two of the materials melt when heated.
Write down the letters of the two materials that melt when heated.
[1]
and
(c) One of the materials does not change when heated.
Write down the letter of the material that does not change when heated.
[1]
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(d) One of the materials is water.
Write down the letter of the material that is water.
Explain your answer.
[1]
(e) Blessy heats material C.
She predicts the mass of the test-tube and its contents will change.
Blessy measures the mass of the test-tube and its contents before she heats
material C.
What other measurement does she make to see if her prediction is correct?
[1]
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10 Forces are measured using forcemeters.
forcemeter
N0
N0
N0
N0
N0
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
masses
A
B
C
D
E
(a) What is the reading on forcemeter B?
N
[1]
(b) Complete the results in the table.
One has been done for you.
number of masses
force in N
2
2
[1]
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(c) There is a pattern in the results.
Complete the sentence.
As the number of masses increases the reading on the forcemeter
.
[1]
(d) Predict the result when 8 masses are put on the forcemeter.
N
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11 Hassan and Jamila grow plants in different coloured bottles.
green
bottle
blue
bottle
clear
bottle
red
bottle
(a) Hassan wants to make the test fair.
He puts the same amount of soil in each bottle.
Write down one other factor Hassan keeps the same.
[1]
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(b) Use the picture to decide which coloured bottle is best for plants to grow.
Complete the sentences.
Choose words from the list.
biggest
blue
green
more
less
red
smallest
clear
The plants grow best in the
bottle.
This is because the plants in this bottle are
The conclusion will be more reliable if they put
.
plants
in each bottle.
[2]
(c) What does light give to the plants to help them grow?
Circle the best answer.
colour
energy
food
temperature
water
[1]
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12 Carlos uses his lungs to get oxygen into his body.
(a) Describe how the oxygen gets to all parts of his body.
[1]
(b) Carlos needs oxygen in all parts of his body.
Write down two reasons why Carlos needs oxygen.
1
2
[2]
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13 Aiko investigates shadows.
She puts a star-shaped piece of card between a light source and a white screen.
light source
card
white screen
(a) Why does the card form a shadow?
[1]
(b) Aiko moves the card closer to the light source.
What happens to the shadow?
[1]
(c) Aiko changes the white screen to a mirror.
She sees the star in the mirror.
Explain why she sees the star in the mirror.
[1]
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14 The freezing point of a material is the temperature when a liquid becomes a solid.
(a) What is the meaning of the words boiling point?
[1]
(b) Write down the temperature of the boiling point of water.
Include the units.
[1]
(c) What is the meaning of the words melting point?
[1]
(d) Write down the temperature of the melting point of water.
Include the units.
[1]
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15 Food chains are made up of producers, consumers, predators and prey.
(a) What is a producer?
[1]
(b) What is a consumer?
[1]
(c) What is a predator?
[1]
(d) The number of predators in a food chain increases.
What happens to the number of their prey?
Circle the best answer.
always doubles
always halves
decreases
increases
stays the same
[1]
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16 Penguins living in very cold places huddle together in big groups.
This helps them survive the cold.
Ahmed investigates why huddling together helps penguins survive the cold.
Ahmed:
•
puts 10 boiling tubes into beaker A
•
puts 1 boiling tube into beaker B
•
adds 40 cm3 of hot water to each boiling tube
•
measures the temperature of water in boiling tubes X and Y
•
records the temperature of the water in boiling tubes X and Y every two
minutes.
X
Y
beaker A
beaker B
(a) Ahmed makes this prediction,
‘I think the water in tube X will stay warmer than the water in tube Y.’
Tick () to show if Ahmed is correct.
yes
no
Explain your answer.
[1]
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(b) Ahmed wants to investigate how fur helps animals survive the cold.
Complete his method.
Ahmed:
•
wraps
•
puts the boiling tube into beaker A
•
puts another boiling tube into beaker B with
•
adds 40 cm3 of hot water to each boiling tube
•
measures the temperature of water in the boiling tubes in beaker A and in
beaker B
•
records the temperature of the water in the boiling tubes in beaker A and in
beaker B every two minutes.
around a boiling tube
around it
[1]
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© UCLES 2021
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