year 4 science pksr 2 2011

7/29/2019 Year 4 Science Pksr 2 2011

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SEKOLAH KEBANGSAAN CONVENT (2) KLANGPKSR 2

SCIENCE YEAR 4 2011

NAME : ___________________________________ CLASS : ______________

Section A[30 marks]

Answer all questions.

Look at the information below.

1. What happen during inhalation?

I The lungs expand.

II The lung contract.

III Air is forced out of the lungs.

IV Air flows in from outside through the nose.

A I and III

B II and III

C I and IV

D II and IV

2. Marlisa observes a hen sitting on its eggs

Choose the correct statements about the observation.

I The hen lays a great number of eggs.

II The hen sits on the eggs until they hatch.

III The hen looks after eggs and chicks.

IV The hen covers the eggs with dry leaves.

A I and III

B II and III

C I and IV

D III and IV

3. Diagram shows various types of animals

Breathing involves inhalation and exhalation.


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All the animals show above can be grouped under.

A dangerous animals

B animals that hunt at night

C animals with sharp teeth

D poisonous animals

4. Which of the following is the best way to keep the grasshoppers alive?

A. Add more water into the bottle

B. Make some holes on the plastic sheet

C. Add more number of grasshoppers

D. Replace the leaves in the bottle with bread

5. Diagram 3 shows a type of plant.

How does the plant shown in the diagram protect itself from enemies?

A. It produces poisonous substance

B. It produces latex

C. It produces bad smell

D. It has long roots

6. The diagram below shows an investigation

Mamat has placed a few grasshoppers in a glass bottle that contains water

and some leaves. The bottle is covered with a plastic sheet.


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What conclusion can be drawn from the investigation?

A. Plants need water to live

B. Plants need air to live

C. Plants need food to live

D. Plants need sunlight to live

7. What is the meaning of excretion?

A. The life process to produce offspring.B. Something that causes response in humans.C. The process to get rid of urine, sweat and water from the bodies.D. The action to take in air during breathing.

8. Smoking is harmful to the body because it can cause

I. Lung cancer

II. Heart attack

III. Diabetic

A. I only

B. I and II only

C. II and III only

D. I , II and III

9. Figure shows a rectangle shape.10 cm


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3 cm

The area of the rectangle shape is

A. 13 cm

B. 26 cmC. 30 cmD. 33 cm

10. The Figure below shows three sizes of a photo frame. Arrange the photo

frames

according to their area from the smallest to the biggest.

A. P R Q

B. P Q RC. Q R P

D. R P Q

11. Which of the following are standard units of length?

I Metre

II Millimetre

III Centimetre

A. I and II only

B. I and III only

C. II and III only

D. I, II and III

12. Julia arrives at school at 7.10 a.m. If she takes 15 minutes to walk to school,

what time did she leave her house?

A 6.55 am


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B 7.00 am

C 7.10 am

D 7.15 am

13.

3 cm

1 cm6 cm

Calculate the volume of the cuboid above .

A 18 cm 3

B 15 cm 3

C 10 cm3

D 9 cm 3

14. The picture below shows two boys, P and Q playing see-saw at the playground.

Which statement explain this observation?

A The boy P has less mass than boy QB The boy P has same mass than boy QC The boy Q has more mass than boy PD The boy Q has less mass than boy P

15. The following objects are put into a basin of water. Which of the following objectswill float in water?I CorkII PolystyreneIII CoinIV CardboardA I and II onlyB II and IV onlyC I, II and IV onlyD I, II, III and IV

P QP


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16. What is the length of the pencil shown in Figure above?A. 9 cmB. 7 cmC. 5 cmD. 2 cm

17. Which of the objects below is wrongly classified?

Object Float on water Absorb water

A Coin No No

B Tissue Yes Yes

C Sponge Yes Yes

D Metal spoon Yes No

18. A vacuum flask as shown in Figure above keeps our drinks hot becauseA. The flask is made of plasticB. Liquids do not lose heat easily in a tightly closed containerC. The vacuum layer inside the flask is a poor conductor of heat, thus, heat is

retained insideD. The flask has two layers and it takes a long time for heat to travel through

these layer

19. Table below shows the abilities to allow light to pass through of three differentMaterials P,Q and R.

Material

abilities

Material

Transparent

Translucent Opaque

P

X

X

Q X X


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R X X

Which of the following represent P,Q and R ?

P Q RA. Mirror Window panel Plywood

B. Plywood Aluminium foil Manila card

C. Side mirror Plank Book

D. Eraser Plastic sheet Wood umbrella

20. A nail immersed into a boiled water.Predict what will happen to the nail after aweek .

A. A nail become bend.B. A nail become unrust.C. A nail become rustyD. A nail become more shiny.

21. There was a several ways to preventing iron object from rusting such as

i. spray anti-rust paint to the object.ii. immersed into a tap wateriii. greasing an object.iv. expose object to the air.

Which of the anwers below is true?

A. i and iiB. i and iiiC. ii and iii.D. iii and iv

22. What is the correct order of planets in The Solar System starting with the

planet closest to the Sun?A Mercury, Earth, Uranus, SaturnB Jupiter, Earth, Uranus, PlutoC Uranus, Jupiter, Neptune, MercuryD Mercury, Venus, Earth, Mars

23. The Science teacher uses a basketball to represent the size of the Sun. Whichof

the following can be used to represent planet Earth.

A A footballB A volleyballC A sago seedD A glass marble

24 The following statement shows a part of the Solar System, X.

It is a piece of stone or metal that floats in outer space.


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Which of the following could be X ?A CometsB MeteoroidsC The SunD Asteroids

25. Information below shows the planets in solar system

Choose the position of planets from the furthest to the nearest to the Sun.

A J, K, L MB K, L, M, JC L, M, J, KD M, L, K, J

26. An object has the following characteristics.

What is the object?

A The MoonB A StarC A MeteorD An asteroid

27. Humans cannot communicate with people who are faraway

Which of the following devices can be used to overcome the limitationmentioned above?

J - Saturn

K - Jupiter

L - Mars

M - Earth

It is the member of the solar system.It often enters the Earths atmosphere.It burns and produces light.


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A II onlyB I and IV onlyC II and III onlyD I, II and IV only

28. Which of the following devices have the same function?

A Telephone Radio

B Satelite Camera

C Periscope Microscope

D Television Stateschope

29. The device to overcome human limitation if unable to see far away objectsare

A. MicroscopeB. PerischopeC. Camera

D. Satelite

30. Diagram 1 shows a child who wishes to observe a bird on a tree at the other sideof the river. Which of the following devices can help the child?A BinocularsB Magnifying glass

C MicroscopeD Telescope

SECTION BAnswer all the questions.


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1) The diagram shows an average pulse rate of humans as they grow older.

Age (year) Average pulse rate (beat/min)

30 7440 7050 64

60 60

(a) What is the purpose (aim) of this investigation?

___________________________________________________________________________

___________________________________________________________________________

( 1 mark )

(b) What is kept the same (constant variable) in this investigation?

___________________________________________________________________________

___________________________________________________________________________

( 1 mark )

(c) State the information gathered in this investigation.

(d)

i) ______________________________________________________

ii) ______________________________________________________

( 2 mark )

(e) Predict the average pulse rate of human when the age is 45 years old.

_______________________________________________________________

( 1 mark )

2. The diagram below shows the set up of an experiment carried out by a group of

pupils to study the factors that caused the rusting of an iron nail.


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a) What is the aim of the investigation?

_______________________________________________________________________________

_______________________________________

( 1 mark )

b) State your observation based on the experiment.

_______________________________________________________________________________

_______________________________________

( 1 mark )

c) What to change in this experiment ?

________________________________________________________

( 1 mark )

c) State one reason based on the observation stated in 3 ( b ).

_______________________________________________________________________________

_______________________________________

( 1 mark )

d) What is the conclusion of the investigation?

_______________________________________________________________________________

_______________________________________

( 1 mark )

3. The table below shows the distance of planet from the sun. The time taken foreach planet to move around the sun is measured.

PLANET / Planet

Distance of the planetfrom the sun (millionkilometer)

Time taken for the planet tomove around the sun(days )

O (Mercury) 57.9 88

P (Venus) 108.2 224


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Q (Earth ) 149.6 365R (Mars ) 227.9 687

(a) What is the purpose (aim) of this investigation?

[1

mark]

(b) What is the trend of the time taken for the planets to move around the sun?

[1 mark]

(c) Predict what will happen if there is no water and oxygen in planet Q ?

[1 mark]

(d) What to observe in this investigation ?

(1

mark)

(e) What conclusion can be made from this investigation?


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[1 mark]

4. In an investigation, water is allowed to drip from a can with a hole. The volumeof

dripping water is collected in a measuring cylinder and measured for every 5minutes.

Table shows the result of the investigation.

Time (minute 0 5 10 15 20Volume (cm)) 0 10 20 30 40

a) What is the aim (purpose) of the investigation?

___________________________________________________________________________

____________________________________________________________________________(1 mark )

b) What to change in this experiment ?

___________________________________________________________________________( 1 mark )

c) What to observe in this experiment ?

____________________________________________________________________________(1 mark )

d)Predict the volume of water collected in the measuring cylinder after 30minutes.

____________________________________________________________________________( 1 mark )

c) What conclusion can be made from the investigation?

____________________________________________________________________________

____________________________________________________________________________( 1mark )

Prepared by, Checked by,

_____________________ ____________________( Manimala Somakandan) ( Zainon Bt. Mohd Zain)Head Of Science Panel Senior Assistant 1SK Convent (2) Klang SK Convent (2) Klang

Approved by, Parents Signature,


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_______________________________ ___________________________(Hajjah Hamidah binti Ali Akhbar) (

)HeadmistressSK Convent (2) Klang

year 4 science pksr 2 2011

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