upsr sci trial 18

8/6/2019 Upsr Sci Trial 18

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Portal Pendidikan Utusan 2007 Hak Cipta TerpeliharaUtusan Melayu (M) Berhad, Kuala Lumpur 2

4. Which of the following is correctly paired?

Animal Type of shelterA Bat Trees

B Bear CavesC Frog SeaD Grasshopper Pond

5. The diagram shows two animals.

What do both animals have in common?

A They both breathe through lungs.B They both reproduce by laying eggs.C They both can change their body colour to match their surrounding.D They both release bad smell to protect themselves from enemies.

6. The diagram shows a type of bird.

Based on its beak, the bird most probably eats

I small animalsII plantsIII fruits

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


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7. The table below shows the properties of material X.

Properties of materialConduct electricity

X

Float in water

Can be stretchedX

Allow light to pass through

Which of the following is X?

A Aluminium foilB Wooden spoonC Clear plasticD Rubber glove

8. The diagram shows the reading of the volume of water in a measuring cylinderwhen 5 marbles are put in it.Given that all the marbles are of the same size,how many marbles are put in the measuring cylinder when the measuringcylinder shows a reading of 100 cm ?

Number of marbles Volume of water (cm )0 405 60

A 10

B 15C 20D 25

9. The information above describes a microorganism.Which of the following is the microorganism?

The tiniest of microorganisms

Live on living things only


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A B

C D

10. Why does the phenomenon shown below happens?

I Object X expands when illuminated by light.II Object X is opaque in nature.III Light travels in a straight line.IV Light is reflected by object X.

A. I and III onlyB. II and III onlyC. I, II and III only

D. II, III and IV only


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11. The diagram shows a boy breathing onto the surface of a mirror.

The mirror turns cloudy because

A it became warm.B warm air has mixed with cold air.C it loses heat to the surrounding air.D warm air has condensed on the much cooler mirror.

Type of surface Distance travelled (cm)X 300Y 150Z 50

12. A marble is rolled with the same force on two different types of levelled surface.The distance traveled by the marble is shown in the table above. What can youconclude from this investigation?

A The frictional force on Surface X is greater than the frictional force onSurface Y.

B The frictional force on Surface X is the greatest.C The frictional force on Surface Y is greater than the frictional force on

Surface ZD Surface Z has the greatest frictional force.


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13. The diagram shows the classification of materials based on theirbasic source.

M N

Which of the following can be grouped under M and N?

M N

A Pencil PenB Silk cloth Frying Pan

C Mengkuang mat Iron nailsD Fur coat Glass

14. The diagram shows a fruit and some information on the fruit.

Which of the following desribes the chemical characteristics of the fruit?

A X and Y onlyB Y and Z onlyC X and Z onlyD X, Y and Z

15. The diagram shows a plant.

X- Can be made into a juice

Y - Changes blue litmus paper red

Z - Sour taste

Eraser

Wooden table

Gold ring

Drinking glass


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19. The diagram shows two cans of milk P and Q that are placed in a science lab.

After 3 days it was found that Milk Q has gone sour whereas Milk Premains fresh. What conclusion can be made from this investigation?

A Milk will turn sour when exposed to air.B The unopened tin can has no bacteria.C Bacteria cause the milk to turn sour.D Bacteria are present in air.

20. The diagram shows a Layer X that surrounds the Earth.

Which of the following is true about Layer X?

I It contains water vapourII It contains oxygen gas

III It contains hydrogen gasIV It contains carbon dioxide gas

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

D I, II and IV only


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21. The diagram below shows some nails which are placed on a magnet coveredby a piece of cloth. The nails remained stuck to the magnet and did not fell.

The above situation can be used to describe the

A. Earths gravitational pullB. centre of the Earth

C. Earths atmosphereD. layers of the Earth

22. Arrange R, S and T according to ascending degree of hotness.

A. R, S and TB. S, T and UC. T, R and SD. T, S and R

23. An experiment was carried out as shown below.

R - coreS - mantelT - Earth crust


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Miranda found out that the light from the torch light is reflected by the planemirror and then falls on the globe. Which of the following celestial bodies isrepresented by the mirror?

A Asteroid

B CometC MeteorD Moon

24. Which of the following statements is true about the eclipse of the Sun?

A. Light from the sun is blocked by the moon.B. The light from the Sun does not shine on the moon.C. The Earths shadow covers the surface of the moon.D. The moons shadow covers part of the Earths surface.

25. Which of the following statements is true about technology?

I Applying scientific knowledge to overcome humans limitationII Using scientific knowledge to invent machines.III Using scientific knowledge to improve the civilisation of men.

A. I and II onlyB. I and III onlyC. II and III onlyD. I, II and III

26. Mr Wong couldnt see clearly the small letters on a packet of food. Which of thefollowing tools is the most suitable to be used to solve his problem?

A Using a microscopeB Using a hand lensC Using a binocular.D Using a plane mirror.

27. Which of the following tools uses the principle of a lever?

I II


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III IV

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

28. The diagram below shows the number of organisms in a particular foodchain.

Which of the following organisms is most probably a producer?

A R onlyB Q onlyC P and Q onlyD P, Q and S only

29. The diagram shows an experiment carried out by a group of students.


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What will happen if the experiment is carried out for 5 minutes?

I The temperature of water increasesII The light bulb feels hotIII Heat energy is produced

IV The dry cell loses power.

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

30. The diagram shows a type of simple machine.

Which of its parts below is correctly labelled?

Fulcrum Effort Load

A P Q RB Q R PC Q P RD R P Q


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SECTION BStr uctur al Quest i ons

Answer ALL the foll owi ng questi ons.

Question 1

A group of students carried out an investigation to compare the time taken for breadmould to grow when different volumes of water are placed on 3 pieces of bread ofsimilar type and size.

ContainerVolume of water

(ml)

Time taken for thebread mould to grow

(hr)A 10 72B 20 48C 30 24

Table 1 shows the results of the investigation.

a. State the hypothesis that can be tested for this investigation.

..

..(2 marks)

b. State the pattern of bread mould growth.

..(1 mark)

c. Predict the time taken or the bread mould to grow if 15 mlof water is placed on the bread.

..(1 mark)

d. State other factors that influence the growth of bread mould.

..(1 mark)

Table 1


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Question 2

Diagram 1

Diagram 1 shows the apparatus and materials used in an investigation.A small pail of water is used to water three plants of the same specieseveryday for a period of 2 months. All three plants are three weeks oldat the time of the investigation.

a. What is the purpose of this investigation?

(1 mark)

b. Based on the experiment, state the following variables.

(i) Manipulated variable

(ii) Responding variable

(iii) Fixed variable

(3 marks)

c. Write a hypothesis for the experiment based on the purpose of the experimentyou stated in (a).

(1 mark)


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Question 3

Time (min) 0 1 2 3 4 5 6

Container R (oC) 90 85 78 69 57 42 32

Container S (oC) 90 87 83 80 78 74 68

Table 2

Table 2 shows the changes that occur on Liquid T for a total of 6 minutes after beingplaced in Container R and Container S.

a. What do you understand by the decrease in temperature in container R and S?

( 1 mark )

b. Give 2 inferences with regards to the decrease in temperature in Container R.

i.

ii. ( 2 marks)

c. What could be done to prevent the temperature of a liquid from decreasingabruptly?

...

( 2 marks )


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Question 4

Table 3

2. Table 3 shows the information gathered from an investigation carried out atPond P and Pond Q for the same period of time.

a. State one inference to explain the difference in the condition of the fish inPond P and Pond Q.

.( 1 mark )

b. State one other observation that can support the inference you named in(a).

.( 1 mark )

c. Propose a hypothesis based on the inference that you made in (c).

.( 1 mark )

d. State one information that is fixed in this investigation.

.( 1 mark )

The investigation also discovered that there are more species of plantsin Pond Q compared to Pond P.

e. Based on the information above, build a hypothesis that relates thisinformation with the number of species of fish in the pond.

( 1 mark )

- END OF QUESTIONS PAPER -

Pond P Pond Q

Average size of fish / g850 1200

Number of fish species6 10


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Answers

SECTION A

1. D

2. A3. D4. B5. D6. A7. C8. B9. C10. B11. D12. D

13. C14. B15. B16. B17. C18. C19. A20. D21. A22. D23. D24. A25. D26. B27. D28. A29. D30. C

SECTION B

1. a. The greater the volume of water, the lesser is the time taken for thebread mould to grow.

b. Descendingc. 60 hoursd. Surrounding temperature


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2. a. To investigate the relationship between the type of water used to waterthe plant and the condition of the plant

b. Type of water used to water the plantCondition of the plantType of plant

c. If the water used to water the plant contains minerals , the plant will growbetter/at a faster rate

3. a. The decrease in temperature in Container R is faster than inContainer S.

b. (i) Because ice is placed in the container.(ii) Because cold water is placed in the container.

c. Placed the liquid in a container that is a poor conductor of heat/close thecontainer/cover the container/wrap the container

4. a. The number of species of fish in Pond P is less than in Pond Q becausePond P is more polluted than Pond Q.

b. The size of the fish in Pond P is smaller than the size of fish in Pond Q.

c. The more polluted the pond, the less is the number of species of fish thatcould be found in the pond.

d. Period of investigation.

e. The more species of aquatic plants found in the pond, the greater is thenumber of species of fish in the pond.

upsr sci trial 18

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