2009

21

SECTION B- SCIENCE YEAR 4

Section B

Answer all questions.LIVING THINGS.

1. The figure shows three different animals P, Q and R.

P Q R

a. State the characteristics that these animals have to protect themselves from enemies.

P : _____________________________________________________

Q : _____________________________________________________

R : _____________________________________________________( 3 marks )

b. Give one other animal that protect itself in the same way as animal P.

______________________________________________________________( 1 mark )

c. The figure below shows a polar bear.

How does it survive in extreme cold weather?

_______________________________________________________________

( 1 mark )

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

2. The diagram below shows a fair test carried out by a group of pupils.

a. Based on the fair test above, state the basic needs of animals

.....................................................................................................................( 1 marks )

b. What is the aim of the fair test?

.....................................................................................................................

.....................................................................................................................( 1 marks )

c. In this fair test, state

i. what to change : .....................................................................

ii. what to keep the same : ..............................................................( 2 marks )

d. Predict which mouse will die after one week.

....................................................................................................................( 1 marks )

HMMT@SKS

net cardboard

Food and water

Cage R Cage S

2009

21

SECTION B- SCIENCE YEAR 4

3. A group of of students carried out an investigation. They kept a rabbit in a cage and provided it with adequate food and water. They recorded the the weight of the rabbit every two weeks. Table below shows the recorded results.

Week 0 2 4 6 8 10

Mass / kg 0.5 0.7 1.0 1.3 1.9

a. What is the aim of the fair test?

.....................................................................................................................

.....................................................................................................................( 1 marks )

b. In this fair test, state

i. what to change : .....................................................................

ii. what to measure : ..............................................................( 2 marks )

c. Predict the weight of the rabbit on week 8?

....................................................................................................................( 1 marks )

d. What can you conclude from the fair test?

....................................................................................................................( 1 marks )

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

4. A group of students carried out an activity to study the numbers of chest movement and the running distance. The bar chart below shows the results of the activity.

80

70

60

50

40

30 20

10

20 40 60 80 100

a) Based on the investigation, state the following that is :

1) kept the same ? (fixed variable)

____________________________________________________________ ( 1 mark )

2) changed ( manipulated variable)

____________________________________________________________( 1 mark )

3) measured (responding variable)

____________________________________________________________( 1 mark )

b) What is the purpose of the investigation?

__________________________________________________________________

__________________________________________________________________( 1 mark )

c) State the relationship between the running distance and the numbers of chest movement in one minute.

__________________________________________________________________

________________________________________________________________( 1 mark )

HMMT@SKS

Running distance / metre

The numbers of chest movement in a minute.

2009

21

SECTION B- SCIENCE YEAR 4

5. Two similar seeds were planted in two pots of the same size. The diagram below shows the observation after 2 weeks.

a) Give one reason why plant in pot A is bigger than plant in pot B?

…………………………………………………………………………………[ 1 Mark ]

b) What is to be kept the same ?

………………………………………………………………………………………[ 1 Mark ]

c) State two things to measure based on the observation.

1. ……………………………………………………………………………………

2. ……………………………………………………………………………………[ 2 Marks ]

d) Make one conclusion from the fair test.

…………………………………………………………………………………[ 1 Mark ]

MEASUREMENT

HMMT@SKS

A B

2009

21

SECTION B- SCIENCE YEAR 4

1. Ali carried out a fair test to find the relationship between length of string and the number of swings in 30 seconds. He used the same type of pendulum throughout the fair test.The table shows the result of the fair test.

Pendulum Length of string (cm) Number of swings in 30 seconds

W 10 45X 15 39Y 34Z 25 30

W

X

Y

Za) In this fair test, state

i) What to change: ____________________________________[1 mark]

ii) What to measure: ___________________________________[1mark]

ii) What is kept the same? _______________________________[1 mark]

b) State the pattern/trend of the number of swings in 30 seconds.

__________________________________________________________[1 mark]

c) Predict the length of string if the number of swings is 34?

___________________________________________________________ [1 mark]

HMMT@SKS

String

Pendulum

2009

21

SECTION B- SCIENCE YEAR 4

2 Diagram shows the result of an investigation carried out by Ali on object X and Y when placed in the salt solution.

a) Why does object Y can float higher than object X?

_____________________________________________________[1 mark]

b) What to measure(observe)?

_____________________________________________________ [1 mark]

c) What to keep the same?

_____________________________________________________ [1 mark]

d) What is the aim of the fair test?

To find the relationship between _______________________ and ______________________________

[1 mark]

e) What is the relationship between mass of object and ability to float?

If the mass of object ___________________, the ability to float

__________________________ [1 Mark]

HMMT@SKS

Object Y

Object X

800 mlSalt

solution

2009

21

SECTION B- SCIENCE YEAR 4

PROPERTIES OF MATERIALS.

1. Match A to the equivalent value in B

A B

2 cm 4 km

100 cm 200 mm

4000 m 1 m

( 3 marks )

2. Munirah classified a few objects into group C and group D according to the material they are made of as shown below.

Group C Group D

a) Name

Group C: __________________________________________________________

Group D: __________________________________________________________

( 2 marks )

b) Name two other objects that can be group into C and D.

Group C: __________________________________________________________

Group D: __________________________________________________________

( 2 marks )

HMMT@SKS

Paper

Steel spoon

Hand bag

Gold ring

Rain coatPailVase

Tooth brush

2009

21

SECTION B- SCIENCE YEAR 4

3. The diagram shows water being spilled on a table and wiped away with material Y.

a) Give reason for the observation above?

_______________________________________________________

b) What can be material Y?

_______________________________________________________

c) (i) Is material Y suitable to make a raincoat?

_______________________________________________________

(ii) Give a reason for your answer in c (i)

_______________________________________________________

( 4 marks )

4. Name the resource for each of the objects below and state whether it can or cannot rust.

Object ResourceCan rust ( / )

cannot rust ( × )

Cupboard

Tyre

Iron gate

Flower pot

( 4 marks )

HMMT@SKS

Water Material Y No water

2009

21

SECTION B- SCIENCE YEAR 4

5. The picture shows a fair test carried out by group of year 4 pupils.

After a week the condition of the nails were observed and the results is shown in the table below;

Test tube Condition of the nail

P Not rusty

Q Rusty

R Rusty

a) What is the function of the layer of oil in test tube Q?

__________________________________________________________

( 1 marks )

b) Give an inference for the observation in test tube:

P: _________________________________________________________

Q: ________________________________________________________

(2 marks)c) In this fair test, state what is changed?

The presence of __________________________________________________________

(1 marks)

d) What is the conclusion for this fair test?

_____________________and _________________are needed for iron to rust.

(1 marks)

HMMT@SKS

WaterDry calcium chloride

Iron nail

oil

P Q R

2009

21

SECTION B- SCIENCE YEAR 4

EARTH AND UNIVERSE.1. Match the words to the correct meaning.

2. Fill in the blanks with the correct word given.

a) The biggest planet is ______________________

b) The Sun is in the ______________________ of the Solar System.

c) Pluto is the ______________________ planet from the Sun.

d) All the ____________ planet move around the Sun in a large oval path.

[ 4 marks ]

HMMT@SKS

[ 4 marks ]

Jupiter centre Mercury nine

Have long glowing tails.a) Asteroid

b) Sun

c) Meteor

d) Comet An object that gives out light in the Solar system

Are huge chunks of rocks that travel round the sun

A bright streak of light across the sky at night

2009

21

SECTION B- SCIENCE YEAR 4

3.

Diagram 1(a) Name

(i) the biggest planet : ________

(ii) the smallest planet :_________

(iii) the nearest planet from the Sun : ____________

(iv) the farthest planet from the Sun : ____________[ 4 marks ]

(b) Which objects in the Solar System

(i) give off their own light?

_____________________

(ii) do not give off their own light?

________________________[ 2 marks ]

3 Diagram 2 shows three different sizes of balls which represent the Earth, the Moon and the Sun.

.

Football Takraw ball Ping-pong ball

Diagram 2

(a) Which ball represents

(i) the Earth? : _____________________________

(ii) the Moon? : _____________________________

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

(iii) the Sun? : ______________________________ [ 3 marks ]

(b) Give an inference for your answers in (a).

___________________________________________________________[1 mark]

(c) Predict what will happen if the Sun becomes two times bigger than its actual size now.____________________________________________________________

____________________________________________________________[1 mark]

5 Table 1 shows the time taken by some planets to finish its cycle in the Solar System.

Planet The time of the cycleMercury 88 days

Earth 365 daysJupiter 4337 daysPluto 90 666 days

Table 1

(a) Why is planet Pluto takes the longest time?___________________________________________________________________

[1 mark]

(b) Which planet is the nearest to the Sun?___________________________________________________________________

[1 mark]

(c) Which planet has different orbit from other planets?___________________________________________________________________

[1 mark]

(d) The planets are not colliding with each other. Why?___________________________________________________________________

___________________________________________________________________ [1 mark]

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

6 Diagram 3 shows planets in the Solar System.

Diagram 3

(a) Name each planet in the Solar System.

P: ______________________________________________________________

Q: ______________________________________________________________

R: ______________________________________________________________

S: ______________________________________________________________

T: ______________________________________________________________

U: _____________________________________________________________

V: _____________________________________________________________

W: _____________________________________________________________

X: _____________________________________________________________

[ 9 marks ]

(b) What is the centre of the Solar System?

________________________________________________________________________ [1

mark]

(c) Which is the biggest planet?

___________________________________________________________________ [1

mark]

(d) Which planet has the smallest orbit? Why?___________________________________________________________________

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

[1 mark]

7.

Diagram 4

(a) Can we live on the Sun? Why?

_________________________________[ 1 mark ]

(b) Predict what will happen to all living things if there is no Sun.

____________________________________________________[ 1 mark ]

(c) Explain your answer to (b).

____________________________________________________

[ 1 mark ]

(d) What will happen to the Earth if moves towards the Sun? Why?

____________________________________________________[ 1 mark ]

(e) Is the Sun a planet, a star or a moon?

____________________________________________________ [ 1 mark ]

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

TECHNOLOGY

1. The bar graph below shows the time taken by four students to complete a science test.

Time take ( minutes)

name Sara Darren Azmi Sa. a) What is your observation based on bar graph. ?

________________________________________________________________

_________________________________________________________

[ 1 mark ]

b) Write your inference based on your observation in (a) .

______________________________________________________________________

__________________________________________________________ [ 1 mark ]

c) Arrange the students in the order of highest ability.

______________________________________________________________________

__________________________________________________________ [ 1 mark ]

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

d) State the following variables:

( I ) Controlled variable:

______________________________________________________________________

__________________________________________________________ [ 1 mark ]

(ii ) Responding variable :

______________________________________________________________________

__________________________________________________________ [ 1 mark ]

2. The diagram below shows two different methods that are used to send information.

P Q

The table below shows the time taken to send information using the two methods .

Method Time taken to send information

P 7 daysQ 2 minutes

a) Based on the information in the table above, what can be infer ?

______________________________________________________________________

__________________________________________________________

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

[ 1 mark ]

b) State two variables in the investigation above .

______________________________________________________________________

__________________________________________________________ [ 1 marks ]

c) Build the relationships between the method and time taken to send information.

______________________________________________________________________

__________________________________________________________ [ 1 mark ]

d) Make a conclusion based on the investigation above .

______________________________________________________________________

__________________________________________________________ [ 1 mark ]

3. A group of students were carrying out an investigation. They took turns to jump as high as they could trying to touch the ceiling in their classroom. At the end of investigation, none of the students managed to reach the ceiling.

a) What is the objective of this investigation ?

______________________________________________________________________

__________________________________________________________ [ 1 Mark ]

b) State the following variables of investigation:

I ) manipulated variable: ____________________________________________ [ 1 Mark ]

ii) Constant variable : ____________________________________________ [ 1 Mark ]

c) Make a conclusion about the investigation.______________________________________________________________________

__________________________________________________________ [ 1 Mark ]

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

d) Suggest one invention that can overcome the problem.

_____________________________________________________________________

__________________________________________________________ [ 1 Mark ]

4. The diagram below shows different types of vehicle.

a. State on advantage of modern transport to mankind.

__________________________________________________________

__________________________________________________________ [ 1 Mark ]

b. Put the vehicles in three different groups.

i) Group P

_______________________________________________________

_______________________________________________________ [ 1 Mark ]

ii) Group Q

_______________________________________________________

_______________________________________________________ [ 1 Mark ]

iii) Group R

_______________________________________________________

HMMT@SKS

2009

21

SECTION B- SCIENCE YEAR 4

_______________________________________________________ [ 1 Mark ]

c. State the criteria used in each classification above.

i) Group P _______________________________________________________

_______________________________________________________ [ 1 Mark ]

ii) Group Q _______________________________________________________

_______________________________________________________

HMMT@SKS