Test (3)
Cambridge International Examinations
Cambridge Secondary 1 Checkpoint
SCIENCE PAPER 1
Candidates answer on the Question Paper.
Additional Materials: Pen
Pencil
Ruler
Calculator
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand
in. Write in dark blue or black pen.
You may use a soft pencil for any diagrams, graphs or rough working.
Do not use staples, paper clips, highlighters, glue or correction fluid.
Answer all questions.
You should show all your working in the booklet.
At the end of the examination, fasten all your work securely together.
The number of marks is given in brackets [ ] at the end of each question or part
question. The total number of marks for this paper is 50.
This document consists of 16 printed pages.
[Turn over]
2
1
The diagram shows part of the human respiratory system.
(a) (i) The structures labelled X and Y change the volume of the lungs during breathing.
Name the structures X and Y.
X is
Y is
[2]
(ii) Describe how structures X and Y move to increase the volume of the lungs.
[2]
(b) Mike and Rajiv plan an investigation to find out how running speed affects breathing rate.
(i) Name the equipment they must use to measure their breathing rate.
[1]
(ii) State one variable they need to change.
[1]
(iii) State one variable they need to keep the same.
[1]
(iv) Suggest one way they record and present their results.
[1]
3
2
Aiko draws a diagram of an atom of lithium.
(a) The electrons in the charge cloud are held in position.
They do not escape from the atom.
Explain why the electrons in the charge cloud cannot escape from the atom.
Use ideas about the charges on the particles in the atom.
[2]
(b) Aiko wants to draw a diagram of an atom of sodium.
Describe two ways an atom of sodium is different from an atom of lithium.
1
2
[2]
4
3
Pierre and Blessy test five substances, A, B, C, D and E, with three different indicators.
They use these indicators:
• blue litmus
• methyl orange
• thymolphthalein.
Pierre and Blessy use this information about the different indicators to sort the substances into
acidic, neutral or alkaline.
indicator
acidic
neutral
alkaline
blue litmus
red
blue
blue
methyl orange
red
yellow
yellow
thymolphthalein
colourless
colourless
blue
Here are their results.
indicator
substance
A
B
C
D
E
blue litmus
blue
red
blue
blue
red
methyl orange
yellow
red
yellow
yellow
red
thymolphthalein
blue
colourless
blue
colourless
colourless
Sort the substances A, B, C, D and E into three groups: acidic, neutral and alkaline.
Put the letter of each substance into the correct circle.
[2]
5
4
This question is about magnets
(a) On the diagram of the bar magnet, complete the two magnetic field lines shown.
[1]
(b) Jamila makes an electromagnet.
Look at the diagram for her electromagnet.
The electromagnet attracts steel paperclips.
Jamila wants to make her electromagnet stronger.
Write down two ways she can make her electromagnet stronger.
1
2
[2]
6
5
Draw a line from each nutrient to its correct function
nutrient
function
protein
good eyesight
fat
source of energy
vitamin A
growth and repair
calcium
stong teeth and bones
[3]
6
Look at the diagram
It shows the Rutherford model of the structure of the atom.
part A
particle B
(a) Write down the name of part A.
[1]
(b) Write down the name of particle B.
[1]
(c) Write down the charge on particle B.
[1]
7
7 Hazard symbols warn about the dangers of a substance
Draw a line to match each hazard symbol to its correct description.
[4]
8
8
Priya is using an analogy to learn about an organ system
tubing
balloon
plastic bottle
rubber sheet
Priya pulls down
the rubber sheet
Priya releases
the rubber sheet
(a) Circle the correct organ system the analogy represents.
reproductive
nervous
respiratory
atory
excretory
[1]
(b) What is meant by the word analogy?
[1]
(c) Write down one way Priya uses the analogy to learn about the organ system.
[1]
9
9
Mia uses a simple experiment to show some of the processes which occur during the water cycle
(a) Write down three processes in the water cycle which Mia’s experiment shows.
1
2
3
[3]
(b) Write down one other process which occurs during the water cycle.
[1]
10
10 Read the information about different species of penguin
11
(a) Look at the dichotomous key.
Use the information and the dichotomous key to identify the four different species of penguin.
penguin A
penguin B
penguin C
penguin D
[2]
12
(b) The four different species of penguin have been sorted into two groups using their height
What other information can be used to sort the penguins into these two groups?
[1]
(c) What piece of equipment is used to measure the height of the penguins?
[1]
13
11 Air contains a mixture of gases
The pie chart shows the percentages of the different gases in clean dry air.
(a) Look at the pie chart.
(i) Name gas A.
[1]
(ii) Name gas B.
[1]
(iii) Gas C is a mixture of gases. Name one of these gases.
[1]
(b) Large areas of rainforest are being cleared by deforestation.
The trees are burnt after they have been cut down.
This increases the percentage of one gas in the surrounding air.
Which gas?
[1]
14
12 Chen and Priya are using a Slinky (spring) to model a sound wave
Priya attaches the other end of the Slinky to a piece of card.
Chen moves one end of the Slinky backwards and forwards.
(a) What does Chen’s moving hand model?
[1]
(b) The Slinky models the movement of air particles in a sound wave.
(i) Name the region labelled X.
[1]
(ii) Name the region labelled Y.
[1]
(c) Describe how the particles in a sound wave move.
[1]
15
13
Safia investigates the effect of the number of earthworms on the rate of decay of dead leaves
Safia:
• measures the mass of some dead leaves
• places the dead leaves in a container
• adds five earthworms
• measures the mass of the dead leaves after one week
• repeats with a different number of earthworms.
(a) Write down two control variables in her investigation.
1
2
[2]
(b) What is the independent variable in her investigation?
[1]
(c) What is the dependent variable in her investigation?
[1]
16
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17
Test (3)
Cambridge International Examinations
Cambridge Secondary 1 Checkpoint
SCIENCE PAPER 2
Candidates answer on the Question Paper.
Additional Materials: Pen
Pencil
Ruler
Calculator
READ THESE INSTRUCTIONS FIRST
Write your Centre number, candidate number and name on all the work you hand
in. Write in dark blue or black pen.
You may use a soft pencil for any diagrams, graphs or rough working.
Do not use staples, paper clips, highlighters, glue or correction fluid.
Answer all questions.
You should show all your working in the booklet.
At the end of the examination, fasten all your work securely together.
The number of marks is given in brackets [ ] at the end of each question or part
question. The total number of marks for this paper is 50.
This document consists of 16 printed pages.
[Turn over]
2
1
The diagram shows the internal structure of the Earth
A
B
C
(a) Which layer A, B or C is responsible for making the Earth’s magnetic field?
[1]
(b) Write down the part of the Earth that acts as a magnet.
[1]
(c) Circle the equipment that finds the direction of the Earth’s magnetic field.
compass
electromagnet
forcemeter
tmeter
[1]
3
2
Priya makes an electromagnet
She chooses from this list of equipment.
ammeter
buzzer
electric cell
electrical wires
iron rod
lamp
switch
voltmeter
Draw a circuit diagram for the electromagnet she makes.
[3]
3 Draw a line between the element and the correct chemical symbol
element
chemical symbol
Ni
nitrogen
P
phosphorus
N
potassium
Na
silicon
Po
sodium
S
sulfur
K
Si
[4]
[Turn over
4
4
Sound waves can be shown on an oscilloscope
X
Y
time
Answer the questions.
Tick () the correct box for each question.
question
decreases
increases
stays the
same
What happens to the loudness of the sound
between X and Y?
What happens to the amplitude of the sound
between X and Y?
What happens to the pitch of the sound
between X and Y?
What happens to the frequency of the sound
between X and Y?
[3]
5
5
Gabriella has five different materials
She uses an electric circuit to find out which of the materials are metals.
This is the apparatus she uses.
clip
battery
clip
lamp
switch
(a) Describe how Gabriella uses the apparatus to find out if the material is a metal.
What does she do?
..........................................................................................................................................
What will she see if the material is a metal?
...................................................................................................................................... [2]
(b) Tick () two other properties of most metals.
brittle
ductile
heat insulators
high melting point
low boiling point
[2]
6
6 The picture shows a gate made of iron
(a) Iron has to be painted to stop it rusting.
When iron rusts it forms hydrated iron oxide.
(i)
Where does the oxygen in hydrated iron oxide come from?
.............................................................................................................................. [1]
(ii)
iron
Complete the word equation for rusting.
+
..........................
+
water
..........................
..........................
..........................
[1]
(iii)
Iron oxide is one compound of iron.
Write down the name of one other compound of iron.
.............................................................................................................................. [1]
(b) Iron is made of tiny particles that are all the same.
Write down the name of these particles.
...................................................................................................................................... [1]
7
7
Yuri is exercising
(a) Which process releases energy in Yuri’s muscles when he exercises?
Circle the correct answer.
movement
nutrition
perspiration
respiration
[1]
(b) Complete the word equation for this process.
oxygen
+
..........................
..........................
..........................
..........................
+
..........................
..........................
[3]
8
Prisms can be used to reflect light
Write down the letter R on the diagram to show the angle of reflection.
prism
[1]
8
9
When we breathe in, oxygen travels from the air to the blood
Oxygen passes through these structures.
These structures are not in the correct order.
Complete the diagram by writing the names of each structure that oxygen passes through in
the correct order.
oxygen in the air
........................
........................
........................
........................
........................
oxygen in the blood
[5]
9
10 Angelique puts two magnets near each other
(a) Look at what happens.
N
S
N
N
S
N
S
S
Explain what is happening in this diagram.
..........................................................................................................................................
...................................................................................................................................... [2]
(b) Angelique puts the two magnets near each other again.
S
N
S
N
N
N
S
S
Explain what is happening in this diagram.
..........................................................................................................................................
...................................................................................................................................... [2]
10
11 Hassan and Jamila investigate how light affects plant growth
The diagram shows the apparatus they use.
four identical lamps
clear plastic
cover
red plastic
cover
green plastic
cover
black plastic
cover
They
•
use four identical plants
•
put different coloured plastic covers over the plants
•
switch on the lamps over the plants
•
keep the plants here for two weeks.
(a) Hassan and Jamila use four identical plants and four identical lamps.
State one other variable they control to make their investigation a fair test.
...................................................................................................................................... [1]
(b) They want to measure the growth of each plant.
They count the number of new leaves that have grown on each plant in two weeks.
Suggest one other measurement they can make.
...................................................................................................................................... [1]
11
(c) Complete the following predictions.
The plant with most growth is under the .................................................... plastic cover.
The plant with the least growth is under the .............................................. plastic cover.
Explain your predictions.
..........................................................................................................................................
...................................................................................................................................... [2]
12 Foods contain a mixture of different constituents
The table shows the masses of different constituents and the energy content in 100 g of
some foods.
mass of
carbohydrate
in g
mass of
fat in g
mass of
vitamin C
in mg
energy
content
in kJ
bread
47
3
0
1030
butter
0
81
0
3010
raw potato
18
0
20
340
food
(a) The masses of the constituents in each food do not add up to 100 g.
Name one other constituent present in each of the foods.
...................................................................................................................................... [1]
(b) Use the information from the table to answer these questions.
(i)
Which constituent in butter provides the most energy?
.............................................................................................................................. [1]
(ii)
Which constituent in bread provides the most energy?
.............................................................................................................................. [1]
(c) Cooked potato contains much less vitamin C than raw potato.
Suggest why.
...................................................................................................................................... [1]
12
13 Class 8 have a quiz about sound
Their teacher gives them six sentences.
Decide if each sentence is true or false.
Write your answers on the dotted lines.
Sound Quiz
1
Sound causes air particles to vibrate.
.................................................
2
The bigger the vibrations of the air particles the quieter the sound.
.................................................
3
Sound waves can move through air, water and a vacuum.
.................................................
4
When there is no sound the particles stop moving.
.................................................
5
A high pitched sound is always loud.
.................................................
6
Air particles are closer together in a compression than a rarefaction.
.................................................
[3]
13
14 The diagram shows the structure of copper chloride
= copper
= chlorine
(a) Describe how you can tell from the diagram that copper chloride is a compound.
...................................................................................................................................... [1]
(b) Chlorine is a non-metal.
Tick () the correct sentence.
Chlorine is a solid at room temperature because it has a high melting point.
Chlorine conducts electricity because its molecules are close together.
Chlorine is a gas at room temperature because it has a low boiling point.
Chlorine conducts heat because its molecules are far apart.
[1]
(c) Copper is a metal used to make cooking pots.
Use ideas about properties to explain why.
..........................................................................................................................................
...................................................................................................................................... [1]
(d) Copper has a melting point of 1084 °C.
What does this tell you about the forces holding the particles together in solid copper?
...................................................................................................................................... [1]
14
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15