2018–19
Exam Paper
(Chapters 1–6)
Foundation Tier
TIME ALLOWED : 1 hour
TOTAL MARKS : 100 marks
Instructions:
1. The paper consists of FIVE parts:
Part A: Multiple-choice Questions (15 questions, 30 marks)
Part B: True-or-false (10 questions, 10 marks)
Part C: Fill-in-the-blanks (15 blanks, 15 marks)
Part D: Short Questions (3 questions, 15 marks)
Part E: Long Questions (3 questions, 30 marks)
2. Answer ALL questions.
3. Write ALL the answers on the ANSWER
SHEETS provided.
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Active Science
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Active Science
Exam Paper (Chapters 1–6) Foundation Tier
Part A
Multiple-choice
(30 marks)
Choose the best answer for each question.
1.
Grace wants to find out whether a bigger parachute will fall faster than a smaller
one.
Which of the following factors is the independent variable in her investigation?
A. Size of the parachute
B. Shape of the parachute
C.
D.
The height that the parachute falls
Time required for the parachute to fall
2.
Which of the following is NOT a hypothesis?
A. A metal spoon conducts heat better than a plastic spoon.
B. Autumn is the best season in a year.
C. I can run 100 metres in 18 seconds.
D. Small foam balls can float on water but large form balls cannot.
3.
Which of the following phenomena is NOT a change of state?
A.
B.
C.
D.
Copper becomes molten when it is heated to a high temperature.
Water evaporates from the sea.
Tiny water droplets join together to form clouds.
Snow melts in spring.
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4.
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Henry has a glass of muddy sea water. He pours it into the column below.
muddy
sea water
fine sand
coarse sand
gravel
liquid collected
Which of the following can be found in the liquid collected?
(1) Mud
(2) Salt
(3) Micro-organisms
A. (3) only
B. (1) and (2) only
C.
D.
(1) and (3) only
(2) and (3) only
5.
Which of the following statements about plants is correct?
A. All plants need soil.
B. All plants can grow.
C. All plants can produce flowers.
D. All plants can produce fruits.
6.
Which of the following may threaten the survival of blue whale?
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A.
B.
C.
D.
7.
(1) Blood
(2) Egg
(3) Uterus lining cells
(1) and (2) only
(1) and (3) only
(2) and (3) only
(1), (2) and (3)
Where does implantation of an embryo normally take place in a woman?
A. Ovary
B.
C.
D.
9.
(1) Overfishing
(2) Hunting
(3) Abandoned plastic bags in the sea
(1) only
(1) and (2) only
(2) and (3) only
(1), (2) and (3)
During menstruation, a red liquid is expelled from the female body. What does this
liquid contain?
A.
B.
C.
D.
8.
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Placenta
Uterus
Oviduct
Below shows a pair of identical twins.
Which of the following descriptions about them is INCORRECT?
A. They born at the same pregnancy.
B. They have the same genetic material.
C. They come from the same fertilized egg.
D. They come from the same embryo.
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Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
10. Jack is playing basketball with his friends. At which of the following instants does the
basketball have the most kinetic energy?
A.
B.
C.
D.
The basketball moves downwards at 10 m/s.
The basketball moves upwards at 5 m/s.
The basketball moves downwards at 20 m/s.
The basketball moves upwards at 25 m/s.
11. A candle is burning.
Which of the following energy conversions is involved?
A. Electrical energy  light energy
B. Light energy  sound energy
C. Chemical energy  thermal energy
D. Kinetic energy  chemical energy
12. (extension) Why do we call solar power a ‘renewable resource’?
A. After solar energy is converted to other forms of energy, it can be converted
back to solar energy.
B. The supply of solar energy is unlimited.
C. Solar energy can be converted to other forms of energy without any energy
loss.
D. Solar energy can be stored.
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Active Science
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
13. Which of the following correctly shows the arrangement of gold particles before and
after a gold block is melted?

A.
B.
C.
D.
14. A 60 cm3 wooden block has a mass of 30 g. What is its density?
A. 0.5 g
B. 0.5 g/cm3
C. 2 g
D. 2 g/cm3
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Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
15. Which of the following explains why a steel boat can float on water?
A. Steel has the same density as water.
B. Steel is denser than water.
C. A steel boat contains air, and air is less dense than water.
D. A steel boat contains air, and air is denser than water.
Part B
True-or-false
(10 marks)
Write a ‘T’ for a true statement and an ‘F’ for a false statement.
1.
Litre (L) is a unit of mass.
2.
In a distillation set-up in the school laboratory, cold water should enter the
condenser from bottom.
3.
Adding chlorine can kill micro-organisms in water.
4.
Reptiles do not have a backbone.
5.
Human body is made up of one kind of cells only.
6.
In the human body, there are 23 chromosomes in each cell.
7.
A torch converts electrical energy into light energy and thermal energy.
8.
(extension) Using alternative energy sources does not cause environmental
problems.
9.
Air is matter.
10. When a gas is compressed, its particles become smaller.
Part C
Fill-in-the-blanks
(15 marks)
Write the missing words on the lines.
1.
The three conditions that form the fire triangle are (a)_________________ ,
(b)_________________ , and (c)_________________ .
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2.
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
The water cycle involves the following processes:
cloud formation
(b)__________________
raining
(a)__________________
3.
(a)________________ have moist skin that helps breathe on land and in water. Most
of them have (b)________________ feet to help swim.
4.
Sperms are produced in (a)__________________ and eggs are produced in
(b)__________________ .
5.
Conduction of heat occurs when two objects with different (a)________________
are in contact. Materials that conduct heat quickly are good (b)________________
of heat.
6.
(extension) As coal, petroleum and natural gas are formed from dead organisms
millions of years ago, they are called ________________ fuels.
7.
(extension) A __________________ power plant makes use of the thermal energy of
the underground hot rocks to generate electricity.
8.
A pollen grain moves (a)_________________ in still water. It moves irregularly along
a zigzag path. This is an example of (b)__________________ motion.
Part D Short Questions
1.
(a)
Suggest an apparatus for each of the following purposes.
(i) To measure the volumes of liquids
(ii) To transfer a small amount of liquids
(iii) To protect the bench from heat
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(15 marks)
(1 mark)
(1 mark)
(1 mark)
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(b)
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Look at the following diagram. What mistakes does the student make? (2 marks)
(Total: 5 marks)
2.
Debbie wants to know how the weight of sugar changes when it dissolves in water.
She weighs a sugar cube and a beaker of water before and after dissolving.
sugar cube
water
electronic balance
(a)
(b)
(c)
When Debbie designs the experiment, she wants the sugar to dissolve faster in
water.
(i) She thinks about stirring the solution with a glass rod. Explain why this
method may cause error (誤差).
(1 mark)
(ii) What should she do to make sugar dissolve faster in water?
(1 mark)
The balance reading does not change after the sugar is dissolved.
What conclusion can Debbie draw?
(1 mark)
(extension) Debbie further adds more sugar cubes into the beaker. She finds
that some sugar remains undissolved even after stirring.
(i) Briefly explain why.
(1 mark)
(ii) Suggest ONE way to dissolve the remaining sugar.
(1 mark)
(Total: 5 marks)
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3.
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Frank and Edward see two bats in a video.
Frank
Edward
They have wings!
The video says a baby bat feeds on its
They must be birds.
mother’s milk. I think bats are not birds.
(a)
(i)
According to the information above, which group of vertebrates do bats
belong to?
(1 mark)
(ii) Besides the difference stated by Edward, state TWO other differences
between birds and this group of vertebrates.
(2 marks)
(iii) State ONE common feature between birds and this group of vertebrates.
(1 mark)
(b)
Besides birds and the group of vertebrates mentioned in (a), state ONE more
group of vertebrates.
(1 mark)
(Total: 5 marks)
Part E
1.
Long Questions
Jason wants to observe some plant cells under a light microscope.
(a) Before observing the cells, he adds a stain to them. What is the
purpose of doing this?
(b) (i) He sees a blurred image. To see a clearer image, which TWO
parts of the microscope should he turn?
(ii) The image is too dark. Which TWO parts of the microscope
can be adjusted to give more light?
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(30 marks)
(1 mark)
(2 marks)
(2 marks)
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Active Science
(c)
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
A diagram of a plant cell is given below.
X
Y
(i)
(d)
Name structures X and Y.
(2 marks)
(ii) Most water in the cell is stored in a certain structure. Label this
structure on the diagram.
When most animal cells and plant cells are put into water, they both
absorb water. After a while, the animal cells will burst but the plant
cells will not.
(2 marks)
put into water
animal cells
plant cells
burst
Explain this phenomenon according to their cell structures.
do not burst
(1 mark)
(Total: 10 marks)
2.
Tony carries out an experiment to find out the relationship between the length that
a catapult (彈叉) belt is being stretched and the horizontal distance travelled by a
stone shot from the catapult.
x
y
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(a)
(b)
(c)
(d)
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
What are x and y?
(2 marks)
(i) What form of energy does the catapult belt have when it is being
stretched?
(1 mark)
(ii) When x increases, how does the amount of energy in (i) change? (1 mark)
(iii) Where does the energy in (i) come from?
(1 mark)
Write down the energy conversion involved when the stretched catapult
belt is released.
(2 marks)
How will y change if x increases? Briefly explain.
(3 marks)
(Total: 10 marks)
3.
The diagrams below show a ‘magic ball’ made of a special material. The density of
this material changes with temperature.
The ball sinks just after it is put into a hot water bath (60 °C). After a while, it floats.
hot water (60 °C)
‘magic ball’
just after the ball is
put into water
a while later
The graph below shows how the density of the ball changes after it is put into hot
water.
density
density of
hot water
density of
ball
time
when the ball is put
into hot water
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(a)
(b)
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
(i) Briefly explain why the ball sinks just after it is put into hot water. (1 mark)
(ii) When the ball stays in hot water, how does its density change?
(1 mark)
(iii) (extension) Using the particle theory, explain this change in density.
(Hint: Think about the speeds of movement of the particles, and the
distances between them.)
(3 marks)
Now, the ball is taken out of the hot water and is put into a cold water bath
(4 °C). The ball floats just after it is put into the cold water. After a while, it
sinks.
‘magic ball’
cold water
(4 °C)
just after the ball is
put into water
(i)
a while later
after salt is added
How does the density of the ball change when it stays in cold water?
(1 mark)
(ii) Then, some salt is added into the water. After the salt dissolves, the ball
floats again. Briefly explain why the ball floats.
(2 marks)
(iii) Using the particle theory, explain the process of dissolving of salt in water.
(Hint: Think about the collisions between the particles.)
(2 marks)
(Total: 10 marks)
~ End of Paper ~
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Active Science
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Name :
ACTIVE SCIENCE
(
)
Class :
Date
:
Exam Paper (Chapters 1–6)
Foundation Tier
Answer Sheets
TIME ALLOWED : 1 hour
TOTAL MARKS : 100 marks
Marks
Part A
/ 30
Part B
/ 10
Part C
/ 15
Part D
/ 15
Part E
/ 30
Total
marks
/ 100
Instructions:
1.
The paper consists of FIVE parts:
Part A: Multiple-choice (30 marks)
Part B: True-or-false (10 marks)
Part C:
Fill-in-the-blanks (15 marks)
Part D:
Short Questions (15 marks)
Part E: Long Questions (30 marks)
2.
Answer ALL questions.
3.
Write ALL the answers on these
ANSWER SHEETS.
© Pearson Education Asia Limited 2018
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Active Science
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Active Science
Exam Paper (Chapters 1–6) Foundation Tier
Answer Sheets
Part A
Multiple-choice
(30 marks)
1.
______
2.
______
3.
______
4.
______
5.
6.
______
7.
______
8.
______
9.
______
10. ______
14. ______
15. ______
11. ______
12. ______
13. ______
______
Part total:
/ 30
Part B
True-or-false
(10 marks)
1.
______
2.
______
3.
______
4.
______
5.
______
6.
______
7.
______
8.
______
9.
______
10. ______
Part total:
/ 10
Part C
1.
Fill-in-the-blanks
(15 marks)
(a)
(b)
(c)
2.
(a)
(b)
3.
(a)
(b)
4.
(a)
(b)
5.
(a)
(b)
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Active Science
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
6.
7.
8.
(a)
(b)
Part total:
/ 15
Part D Short Questions
1.
(a)
(15 marks)
(i)
(ii)
(iii)
(b)
2.
(a)
(i)
(ii)
(b)
(c)
(i)
(ii)
3.
(a)
(i)
(ii)
(iii)
(b)
Part total:
/ 15
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Part E
1.
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Long Questions
(30 marks)
(a)
(b) (i)
(ii)
(c)
(i)
(ii)
X
Y
(d)
2.
(a)
(b) (i)
(ii)
(iii)
(c)
(d)
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3.
(a)
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
(i)
(ii)
(iii)
(b) (i)
(ii)
(iii)
Part total:
/ 30
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Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Answers
Part A
1.
2.
3.
4.
5.
6.
7.
A
B
C
D
B
D
D
8.
C
Part B
1.
2.
3.
4.
5.
F
T
T
F
F
Part C
1.
2.
3.
4.
5.
6.
7.
8.
(a)
(b)
(c)
(a)
(b)
(a)
(b)
(a)
(b)
(a)
Multiple-choice
9.
10.
11.
12.
13.
14.
15.
D
D
C
B
A
B
C
True-or-false
6.
7.
8.
9.
10.
(30 marks)
(10 marks)
F
T
F
T
F
Fill-in-the-blanks
(15 marks)
fuel
oxygen
a high temperature
evaporation
condensation
Amphibians
webbed
testis / testes
ovary / ovaries
temperatures
(b) conductors
fossil
Geothermal
(a) randomly
(b) Brownian
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Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
Part D Short Questions
1.
(a)
(b)
2.
(a)
(b)
(c)
3.
(a)
(b)
Part E
1.
(a)
(b)
(c)
(i) Measuring cylinder
(ii) Dropper
(iii) Heatproof mat
 She does not tie up her long hair.
 She points the mouth of the test tube towards herself.
(i) Some solution may adhere to / remain on the glass rod.
(or other reasonable answers)
(ii) Shake the solution. / Swirl the solution. / Use warmer water.
(any one)
The weight of sugar does not change when it dissolves in water.
(i) The amount of sugar added is beyond its solubility in water.
(ii) Heat the solution. / Add more water into the beaker.
(any one)
(i) Mammals
(ii) Birds have feathers, but mammals do not. /
Mammals have hair, but birds do not. /
Birds have a beak, but mammals do not. /
Birds lay eggs, but mammals give birth to babies.
(any two or other reasonable answers)
(15 marks)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(2 M)
(iii) Both have a constant body temperature. / Their body temperatures are
not easily affected by the environment.
(or other reasonable answers)
(1 M)
Fish / amphibians / reptiles
(1 M)
Long Questions
Give colour to the cells / Make the cells easier to see
(i) Coarse adjustment (knob)
Fine adjustment (knob)
(ii) Mirror / brightness of the lamp
(i)
Size of the diaphragm
X: cytoplasm
Y: nucleus
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(30 marks)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
19
Active Science
(ii)
Exam Paper 2018–19 (Ch. 1–6) Foundation Tier
large
vacuole
X
Y
(correct spelling: 1 M)
(correct position: 1 M)
2.
(d)
(a)
(b)
(c)
(d)
3.
(a)
(b)
Plant cells have a rigid cell wall but animal cells have no cell walls.
x: The length that the catapult belt is being stretched
y: The horizontal distance travelled by a stone shot from the catapult
(i) Potential energy
(ii) Increases
(iii) Tony
Potential energy of the stretched catapult
 kinetic energy of the stone shot out
Increase
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
(1 M)
The longer the catapult belt is stretched, the more potential energy it has. (1 M)
So, more kinetic energy is transferred to the stone, and the horizontal
distance travelled by the stone becomes longer.
(1 M)
(i) Its density is higher than that of the water.
(1 M)
(ii) Its density decreases.
(1 M)
(iii) When the ball is put into hot water, the particles of the ball gain energy
and vibrate faster.
(1 M)
They move further apart from each other,
(1 M)
so the volume of the ball increases / the ball expands.
(1 M)
(i) Its density increases.
(1 M)
(ii) The density of the salt solution is higher than water.
(1 M)
The ball floats when the density of the salt solution becomes higher than
the ball.
(1 M)
(iii) When a salt crystal is added into water, the water particles collide with
the outer salt particles.
(1 M)
The outer salt particles are pulled out, and they spread evenly among the
water particles.
(1 M)
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