science form 1 Objective test

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Sains/ Sains/

Ogos/ August 2010 Ogos/ August 2010 1

1½½ jam / 1jam / 1½½hours.hours.

55/1 55/1

SMK ISKANDAR SHAH JASIN MELAKA SMK ISKANDAR SHAH JASIN MELAKA

UJIAN PENGESANAN OGOS / AUGUST TEST

TINGKAT

TINGKATAN SATU/ FORM AN SATU/ FORM ONE 2010ONE 2010

JANGAN BUKA KERTAS SOALAN IN! SEHINGGA DIBERITAHU JANGAN BUKA KERTAS SOALAN IN! SEHINGGA DIBERITAHU

ARAHAN:

1.

1. Kertas soalan ini mengandungi Kertas soalan ini mengandungi 4040 soalan.soalan.

Jawab

Jawab_semua_semua soalan.soalan.

Rajah yang mengiringi soalan dimaksudkan untuk memberi maklumat yang berguna bagi menjawab Rajah yang mengiringi soalan dimaksudkan untuk memberi maklumat yang berguna bagi menjawab

soalan.

soalan. Rajah tidak Rajah tidak semestinya dilukis semestinya dilukis mengikut skala.mengikut skala. Tiap-tiap soal

Tiap-tiap soalan diikuti oleh eman diikuti oleh empat pilihan jawpat pilihan jawapan yang beapan yang berhuruf rhuruf A, B, C dan D. A, B, C dan D. Bagi tiap-tiaBagi tiap-tiap soalanp soalan pilih satu jawapan sahaja.

pilih satu jawapan sahaja. Tandakan semua jawapan Tandakan semua jawapan anda pada anda pada kertas jawapan OMR anda.kertas jawapan OMR anda.

5

5 Fikirkan dengan teliti ketika memilih jawapan anda. Fikirkan dengan teliti ketika memilih jawapan anda. Jika anda hendak Jika anda hendak menukar sesuatu menukar sesuatu jawapan, padamkan sehingga bersih jawapan yang tidak dikehendaki itu dan

jawapan, padamkan sehingga bersih jawapan yang tidak dikehendaki itu dan hitamkanhitamkan pilihan pilihan anda yang baru.

anda yang baru.

P

Prreeppaarreedd bbyy:: ChCheecckkeedd bbyy::

…

……….... ……….... ((PPnn. . SSiitti i ZZaaiiddaah h AAhhmmaadd)) ((SSMMKKIIS S SScciieenncce e HHeeaad d PPaanneell))

Kertas soalan ini mengandungi 7 halaman bercetak termasuk muka hadapan Kertas soalan ini mengandungi 7 halaman bercetak termasuk muka hadapan

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1. Which of the resources on earth do green plants need to make their own food?

A Soil and air. B Soil and water. C Oxygen and water.

D Carbon dioxide and water.

2. Which of the following is not one of the Earth's resources?

A Soil B Air

C Water D Plastic

3. Which of the following is not an example of fossil fuel?

A Coal B Petroleum C Natural gas D Sulphur

4. Which of the following is a mineral?

A Air B Silver

C Water D Kerosene

2. Figure 1 shows the natural resources on Earth.

Figure 1

Which resources are needed to sustain life? A Air and water

B Air and fossil fuels C Water, minerals and soil D Air, soil and living things

3. What are organic matter in the soil made up of? I humus

II animal droppings III microorganisms A I only

B I and II only C I and III only D I, II and III

4. Which of the following can form the coal and petroleum?

I animal remains. II melted rocks. III decayed plants. A I and II only B I and III only C II and III only D I, II and III

5. What is the estimation of water content in a human body?

A 37% B 40%

C 70% D 100%

6. Which of the following represents molecule of water?

A B

C D

7. Figure 2, shows a molecule.

P Q

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Figure 2

Which of the molecules shown above consists of one element?

A P B Q

C R D S

8. Which of the following represents an element?

A B

C D

9. Figure 3 shows a classification chart of elements

Figure 3 What are X and Y?

X Y

A Aluminium Copper B Phosphorus Bromine

C Calcium Cobalt

D Chlorine Zinc

10. Which of the diagrams above represent a mixture?

A B

C D

11. Which of the following properties of non-metals is incorrectly matched to its description?

Property Description

A dull The surface glitters B brittle Breaks easily

C poor heat conductor

Cannot transfer heat

D poor electrical conductor

Electricity cannot flow through it

12. Why is aluminium used to make pots and pans? A have shiny surfaces.

B are easily malleable.

C are good conductors of heat. D are good conductors of electricity.

13. The following is a list of non-metallic element.

Which of the substances can exist exactly same as the above substances?

A phosphorus B sulphur C carbon D nitrogen

14. Which of the following is true about a sugar solution?

A It is prepared chemically.

B Its elements are in a fixed ratio.

C Heat is released during its preparation. D Its elements maintain their original

characteristics.

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15. Why is mercury suitable to be used in thermometer?

A has a dull surface. B has high melting point. C is a good conductor of heat. D is a good electrical conductor

16. The following are steps in an experiment to separate salt from a mixture of sand and salt.

Which of the following shows the correct sequence?

A P SR  Q B QR PS C QR SP D R QP S

17. Figure 4 shows a process to separate the components in mixture X.

Figure 4

Which of the following is likely to be mixture X?

A Water and salt B Petrol and water C Water and alcohol

D Coffee drink and carbon powder

18. Figure 5 shows an experiment where sulphur powder is heated together with iron filings.

Figure 5

The result is that substance X is formed. Identify substance X.

A Iron sulphur metal. B Iron sulphide atom. C Iron sulphur mixture. D Iron sulphide compound.

19. Figure 6 shows some salt solution being heated slowly.

Figure 6

What will be observed on the watch glass? A Salt droplets

B Water droplets C Carbon droplets D Salt solution droplets

20. The following is a list of resources.

Why are the resources important to all living?

A support life on Earth B are required by plants C cannot be renewable D can be manufactured

Air Water Plants

P - Add water to the mixture Q - Evaporate the salt solution

R - Filter the mixture to remove sand S - Stir the mixture gently

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21. Figure 7 shows three resources needed for process X. Figure 7 What is process X? A Combustion B Respiration B Photosynthesis D Crystallisation

22. What are the importance of water to plants? I to support the plant

II to make food III to transport food A I only

B I and II only C II and III only D I, II and III

23. Which of the following will not help to conserve and preserve the Earth’s resources?

A Reduce open burning. B Reduce felling of trees. C Reduce using leaded petrol.

D Reduce using biodegradable products.

24. Which steps should be taken to conserve and preserve the earth’s resources?

I reuse certain old materials II reduce the use of plastics III recycle old newspaper A III only

B I and III C II and III D I, II and III

25. Which of the following activities increases the amount of solid waste in the

environment?

I Global usage of plastic bags and containers

II Recycling papers and glass bottles III Using biodegradable household

products A I and II only B I and III only C II and III only D I, II and III

26. Air consists of several types of gases. Which of the following is not present in air?

A Oxygen B Nitrogen C Hydrogen

D Carbon dioxide

27. Which of the following consist of inert gases only?

A Helium, hydrogen, neon and nitrogen B Xenon, argon, krypton and radon C Oxygen, xenon, neon and argon D Neon, krypton, helium and nitrogen

28. Figure 8 shows a lighted candle in an inverted gas jar. The candle extinguished after 10 seconds.

Figure 8

What is the percentage of oxygen in air that is used for the combustion?

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A

B

C

D

29. In Figure 9, when the torchlight is turned on in a dark room, tiny specks are seen in the ray of light from the torchlight.

Figure 9

What is conclusion for the air content? I has dust particles.

II has microorganisms. III has rare gases.

A I only B I, II, III C I and II only D II and III only

30. The apparatus in Figure 10 is set up in an experiment. The sterile Petri dish is filled with sterile nutrient agar. The agar is then exposed to the air for an hour. The Petri dish is then covered and sealed with cellophane tape.

Figure 10

What is the aim of the experiment? A To show that air contains inert gases B To show that air contains dust particles C To show that air contains water vapour

D To show that air contains microorganisms

31. Air is a mixture. Which of the followings are the best explanations?

I the percentage of the components of air is not fixed

II Each component in air shows its original property when separated

III The components of air are easily separated by physical means A I only

B I and III C II and III D I, II and III

32. Figure 10 shows a gas being tested.

Figure 10

What is the most probably gas?

A Nitrogen B Oxygen

C Carbon dioxide D Sulphur dioxide

Questions 36 to 37 are based on Figure 12. 33. Figure 11 shows an experiment set-up.

Figure 11

Which of the following are correct? Gas X Condition of lime water A Oxygen Clear lime water turns

cloudy

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dioxide clear C Carbon

dioxide

Clear lime water turns cloudy

D Oxygen Cloudy lime water turns clear

34. What can be used to replace the limewater? I moist blue litmus paper

II Cobalt chloride paper

III Hydrogen bicarbonate indicator A I only

B I and III only C II and III only D I, II and III

35. Figure 12 shows an experiment to test the solubility of oxygen and carbon dioxide in the sodium hydroxide solution.

Figure 12

What are the changes in the levels of solutions in the two test tubes?

X Y

A Increased Increased B Increased Unchanged C Unchanged Unchanged D Unchanged Increased

36. Figure 13 shows the particles of a gas, which is a component of the air.

Figure 13 What is the probably gas?

A carbon dioxide. B nitrogen.

C oxygen. D argon.

37. Which of the following that oxygen can dissolve in?

I sodium hydroxide solution II alkaline pyrogallol solution III water

A I only

B I and II only C II and III only D I, II and III