Est K1 Pahang 2008

SULIT 6355/1 English for Science and Technology Kertas 1 SEPTEMBER 2008 1 1/4 jam

JPN PAHANG PEPERIKSAAN PERCUBAAN SPM TAHUN 2008 TINGKATAN 5

ENGLISH FOR SCIENCE AND TECHNOLOGY (EST) Kertas 1 Satu jam lima belas minit

JANGAN BUKA KERTAS SOALAN INI SEHINGGA DIBERITAHU Arahan: 1. Kertas soalan ini mengandungi dua bahagian: Bahagian A dan Bahagian B. 2. Jawab semua soalan. 3. Tuliskan semua jawapan anda untuk Bahagian A dan Bahagian B di ruangan yang disediakan. 4. Anda dinasihati supaya mengambil masa 30 minit untuk menjawab soalan dalam Bahagian A dan 45 minit untuk menjawab soalan dalam BahagiaB. Instructions: 1. This question paper consists of two sections: Section A and Section B. 2. Answer all questions. 3. Write all your answers for Section A and Section B in the spaces provided. 4. You are advised to spend 30 minutes to answer the questions in Section A and 45 minutes on the question in Section B. Section Section A Question 1

Marks 10

Question 2

10

Section B

30

Total

50

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Section A [20 marks] [Time suggested: 30 minutes]

Question 1 Read the following text and complete the given task. Does stored water ever go bad? A simple experiment provides a clue. Fill a bucket with tap water and leave it outside for a week. After seven days, algae and various other life forms can be found in the water. Water stored in an open container is akin to the water stored in the bucket in the experiment. Water can also become unfit for consumption due to leachates, that is when something leaches from the container into the water. One good example is water in a lead container. Lead leaches into the water and contaminates it. Therefore, it is important to ensure that the container in which water is stored is made from a food grade material to prevent leaching problems. Some good examples of such materials are glass, stainless steel and some plastics. Plastic soda bottles or large 5-gallon containers specifically intended for water storage are suitable. There are several methods for storing emergency quantity of potable water for the purposes of drinking, cooking or brushing teeth. The first step in bottling water is to clear the water by letting it settle for several hours and the filtering it with a clean cloth. This removes organic matter such as soil or vegetative debris. Bacteria that have already bonded to these materials are hard to kill during filtering. Disinfecting water can be done either through boiling the water, chlorination, using iodine or exposure to ultraviolet sunlight radiation. Boiling the water for at least two minutes will kill most disease-causing organisms.

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Based on the information from the text, complete the graphic organizer below.

DRINKING WATER

Factors causing water to become unfit for drinking

Methods for storing potable water

3)……………

4)……………

….…………

….…………

Disinfecting

1)………………………… ..……………………….. 2)………………………… Removes organic matter

…………………………

Plastic soda bottles 5)………………………… ………………………… 6)………………………… …………………………

7)………………………….. ..………………………... 8)………………………….. ………………………….. 9)…………….……………. ….…………………….. 10)………………………… …………………………

[10 marks]

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Question 2 Read the following text and complete the given task. Chemical Weapons are also called chemical warfare. A chemical weapon is a toxic substance used to cause injury or death. It can be a solid, a liquid or a gas. Military organizations have developed many of these chemicals, such as mustard gas. Some hazardous chemicals can be made from everyday products, like household cleaners. All of these could be used in a chemical attack. Chemical weapons can cause a wide range of symptoms, including blood poisoning, nausea and vomiting, burning eyes and lungs, choking and unconsciousness. Some can cause death. Based on the information from the text, complete the table below. Chemical Weapons 1. ___________________________________________ State of existence

2. ___________________________________________ 3. ___________________________________________

Area used

4. ___________________________________________

Example

5. ___________________________________________

Characteristic

6. ___________________________________________

7. ___________________________________________ 8. ___________________________________________ Effects (to the victims)

9. ___________________________________________ 10. ___________________________________________

[10 marks] 4

Section B [30 marks] [Time suggested: 45 minutes] Space exploration has become a hot issue in our country since our first cosmonaut landed on the moon in 2007. However, space exploration is a debatable topic since it costs a lot of money. As a science student, would you be in favour of space exploration or are you against it? Using the information which you have gathered earlier (as shown in the table below), write a report to your science magazine, giving your arguments. Space exploration Benefits •

Drawbacks •

Gain more knowledge about the universe

•

Programmes and activities cost a lot of money

•

Give rise to scientific and technological developments

Participating countries need to have long term fundings for space projects - sponsorship necessary

•

Applications of space technology

•

Time consuming – in depth research

•

Not many people can join the space

can be used in other fields – communication, defence, geology •

Find other suitable places to live, in case Earth is one day no longer

exploration mission

habitable Your report should include the following: • Comparison between the benefits and drawbacks • The stand you have chosen • Reasons why you have chosen this stand over the other You may include any other relevant information to make your report more comprehensive. Your report should not be less than 200 words.

KERTAS SOALAN TAMAT 5

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