SULIT ANGKA GILIRAN

NO. KAD PENGENALAN

PENILAIAN MENENGAH RENDAH 2009 PEPERIKSAAN PERTENGAHAN TAHUN TINGKATAN 3

mSCIENCE 55/2 mKertas 2

Jun

jam Satu jam tiga puluh minit m

JANGAN BUKA KERTAS SOALAN SEHINGGA DIBERITAHU

1. This question paper consists of two sections: Section A and Section B.

2. Write your answers clearly in the spaces provided in the question paper.

3. Show your working. It may help you to get marks.

4. If you wish to change your answer, neatly cross out the answer. Then write down the new answer.

5. The diagrams in the questions provided are not drawn to scale unless stated.

6. The marks allocated for each question or parts of a question are shown in brackets.

7. The time suggested to answer Section A is 60 minutes and Section B is 30 minutes.

8. You may use a non-programmable scientific calculator.

9. Hand in this question paper to the invigilator at the end of the examination.

________________________________________________________________________Kertas soalan ini mengandungi 18 halaman bercetak dan 2 halaman tidak bercetak

[Lihat sebelah55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

MATHEMATICS AND SCIENCE TUTORIAL

For Examiner’s Use

Examiner’s code

Section Question Full Marks

MarksObtained

A

B

Total

1

2

6

7

4

3

8

5

60

M S T – –

– –

5

6

8

12

8

6

8

7

SULIT 2 55/2 m

Section A

[40 marks]

Answer all questions.

1 Length is a distance between two points. Length of a straight line can be measured by using a meter rule.

(a) What is the SI unit of length?

……………………………………………………………………………………. .[1 mark]

(b) (i) Diagram 1.1 shows a pencil. By using the scale provided on page 19, determine x cm.

Diagram 1.1

x = ………………………… cm[1 mark]

(ii) Diagram 1.2 shows the distance travelled by student X from his house to his school.

Diagram 1.2

By using a provided thread and the scale from page 19, determine how many kilometre does student X need to travelled to school everyday if 1 cm = 1 km.

House to school = ………………………… km[2 marks]

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

1

1 (a)

x

1 (b)(i)

1

House School

2

1 (b)(ii)

For Examiner’s

Use

SULIT 3 55/2 m (c) What are the precautionary steps to be taken into account when measuring a

length of an object?

Tick (√) in the boxes below for the correct precautionary steps before determining the real measurement of an object.

[1 mark]

[Lihat sebelah55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

For Examiner’s

Use

Position the eyes vertically and horizontally to obtain a reading without parallax error

Position the eyes vertically above the mark on the meter rule to avoid parallax error

To obtain more accurate reading of measurements, an average reading must taken

1

1 (c)

Total

A1

5

SULIT 4 55/2 m2 Diagram 2.1 shows an activity to determine the volume of air used by a process.

Diagram 2.1

(a) (i) Name the gas used in this activity.

……………………………………………………………………………… .[1 mark]

(ii) Name the process in 2(a)(i).

……………………………………………………………………………… .[1 mark]

(b) Complete the word equation for the reaction in Diagram 2.1

Fuel + + water

[2 marks]

(c) What is the volume of air used after the candle extinguished?

Volume of air = ………………….. ml[1 mark]

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

For Examiner’s

Use

250 ml gas jar

Water

2 (a)(ii)

2 (a)(i)

2 (c)

2 (b)

1

2

1

1

SULIT 5 55/2 m

(d) Based on Diagram 2.2, choose one activity which applies the same process as in Diagram 2.1. Mark (√) in the box for the activity.

Diagram 2.2[1 mark]

[Lihat sebelah55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

For Examiner’s

Use

2 (d)

1

6

Total

A2

SULIT 6 55/2 m3 Diagram 3 shows the human growth curve. Growth is a permanent and irreversible

process. P, Q, R and S are stages of the human growth.

O

Diagram 3

(a) Name the stages of growth A and D.

A: ………………………………………….

D: ………………………………………….[2 marks]

(b) (i) Which graph represent the growth curve for female?

……………………………………………………………………………… .[1 mark]

(ii) Which stage shows that females exceed the height of boys in certain age?

……………………………………………………………………………… .[1 mark]

(c) In Diagram 4, mark R for the rapid growths and N for the negative growth.[2 marks]

(d) Suggest one food class that should be taken in large quantities by teenagers at the C stage. Give reason for your answer.

Class of food: ……………………………………………………………………. .Reason: …………………………………………………………………………...

.[2 marks]

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

For Examiner’s

Use

Age

Hei

ght

A B C D

X

Y

Total

A3

3 (d)

3 (c)

3 (b)(ii)

3 (b)(i)

3 (a)

2

1

1

2

2

8

SULIT 7 55/2 m4 Diagram 4.1 shows a human digestive system.

Diagram 4.1

(a) Label three of the following structures in Diagram 4.1.

[3 marks]

(b) State one function of organ T.

……………………………………………………………………………………. .[1 mark]

[Lihat sebelah55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

For Examiner’s

Use

Stomach Small intestine

Liver Large intestine

Pancreas

T

4 (a)

4 (b)

1

3

SULIT 8 55/2 m

(c) A student carried out a food test on sample M. Table 4.2 shows the results of the test.

Food test Observation Food class

Sample M is crushed and added with Millon’s reagent

Protein

Sample M is added with a few drops of iodine solution

Starch

Table 4.2

Complete Table 4.2 by writing the observation obtain from the food test.[2 marks]

(d) Diagram 4.3 shows the sequence of food movement in digestive system.

Diagram 4.3

What are represented by X and Y in the sequence of food movement in Diagram 4.3?

X: ………………………………………….

Y: ………………………………………….[2 marks]

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

For Examiner’s

Use

Mouth X

Anus

Stomach Intestines

Y

4 (c)

4 (d)

8

2

2

Total

A4

SULIT 9 55/2 m5 Diagram 5.1 shows the structure of a generalised flower.

Diagram 5.1

(a) Label K, L and M using the following words.

[2 marks]

(b) What are the male gametes and female gametes called?

Male gametes: ………………………………………….

Female gametes: ………………………………………….[2 marks]

[Lihat sebelah55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m

For Examiner’s

Use

K: …..…………… L: …..……………

M: …..……………

Filament

Receptacle

Style

Ovule

Sepal

Ovary Petal Anther Receptacle Stigma

2

2

5 (a)

5 (b)

SULIT 10 55/2 m

(c) Based Diagram 5.1, complete Table 5.2 by writing the functions of the parts of flower.

Parts of flower Function

L

Ovule

Table 5.2[2 marks]

(d) In agriculture, farmers use a method to produce more offspring with the best characteristics of each parent for profit. What type of method is used in agriculutre?

……………………………………………………………………………………..[1 mark]

For Examiner’s

Use

2

1

5 (d)

5 (c)

7

Total

A5

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT mSULIT 11 55/2 m6 Diagram 6.1 shows six organisms in a habitat.

Eagle Snake Grasshopper

Chicken Caterpillar Green plant

Diagram 6.1

(a) Based on Diagram 6.1, construct a food web.

[2 marks]

[Lihat sebelah

For Examiner’s

Use

6 (a)

2

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]SULIT 12 55/2 m

(b) Green plants are producers because they can make they own food through photosynthesis. Complete the word equation for the photosynthesis process.

Water + +

[2 marks]

(c) In the habitat, snake and eagle are examples of a prey-predator relationship.

(i) If all eagles dies, what will happen to the population of chicken in that habitat?

……………………………………………………………………………… .[1 mark]

(ii) Sketch after phase III in Diagram 6.2 to show the prey-predator relationship of snake and eagle.

Diagram 6.2[1 mark]

For Examiner’s

Use

Sunlightchlorophyll

Time

Num

ber

of o

rgan

ism

s

I II III

Eagle

Snake

6 (c)(ii)

6 (c)(i)

6 (b)

1

1

6

2

Total

A6

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]SULIT 13 55/2 m

Section B

[20 marks]

Answer all questions.

7 Diagram 7 shows the picture of animals R, S, T and U.

Diagram 7

(a) State the physical characteristics of animals R, S, T and U.

R: ............................................................................................................................ . S: ............................................................................................................................ . T: ............................................................................................................................ . U: ............................................................................................................................

[4 marks]

[Lihat sebelah

For Examiner’s

Use

R S

T U

7 (a)

4

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]SULIT 14 55/2 m

(b) Classify organisms R, S, T and U in Diagram 7 into two groups based on their common characteristics. Name the animals belonging to each group.

Common characteristics

Name of animals

[4 marks]

For Examiner’s

Use

R, S, T and U

7 (b)

4

8

Total

B7

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]SULIT 15 55/2 m8 Diagram 8.1 shows the apparatus set-up and the initial temperature reading of

distilled water. The distilled water is cooled.

Diagram 8.1

(a) Record the initial temperature of the distilled water.

…………………..ºC. [1 mark] m

[Lihat sebelah

For Examiner’s

Use

Ice sprinkled with common salt

Distilled water

8 (a)

1

15

16

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]SULIT 16 55/2 m

(b) Table 8.2 shows the results of this experiment.

Time/min 5 10 15 20 25

Temperature/ºC 12 8 4 0 0

Table 8.2

State the variables involved in this experiment.

(i) Manipulated variable

……………………………………………………………………………… .[1 mark]

(ii) Responding variable

……………………………………………………………………………… .[1 mark]

(iii) Constant variable

……………………………………………………………………………… .[1 mark]

(c) State a hypothesis based on the results in Table 8.2.

……………………………………………………………………………………. .[1 mark]

(d) For this part of the question, use the graph paper provided on page 17.

Based on Table 8.2, draw a line graph of temperature against time. [3 marks] m(e) Based on the graph drawn in 8(d),

(i) predict the temperature of the distilled water at the 30th minutes.

…………………..ºC. [1 mark] m (ii) state the relationship between the temperature and time.

……………………………………………………………………………… .

……………………………………………………………………………… .[1 mark]

For Examiner’s

Use

1

3

1

1

1

1

1

8 (e)(ii)

8 (e)(i)

8 (d)

8 (c)

8 (b)(iii)

8 (b)(i)

8 (b)(ii)

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]SULIT 17 55/2 m

Graph for Question 8(d)

[Lihat sebelah

O 5 10 15 20 25

Time/min

Temperature/ºC

O

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]SULIT 18 55/2 m

(f) Based on the line graph drawn in 8(d), circle in the graph the point where liquid changes into solid. [1 mark] m

(g) Why is common salt is sprinkled on the ice in Diagram 8.1?

……………………………………………………………………………………. .…………………………………………………………………………………….

.[1 mark]

END OF QUESTION PAPER

For Examiner’s

Use

1

1

8 (g)

8 (f)

12

Total

B8

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]SULIT 19 55/2 m

BLANK PAGE

Use

this

sca

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r Q

uest

ion

1(b)

(i)

and

Que

stio

n 1(

b)(i

i)

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m]