Pmr Science 724s13

SULIT

M S T –

ANGKA GILIRAN

–

–

NO. KAD PENGENALAN

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MATH &SCIENCE

MATHEMATICS AND SCIENCE TUTORIAL

Tutorial PENILAIAN MENENGAH RENDAH 2009 PEPERIKSAAN PERTENGAHAN TAHUN

TINGKATAN 3

55/2

mSCIENCE mKertas 2 Jun 1

1 jam 2

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.

Examiner’s code For Examiner’s Use Section QuestionFull Marks Marks Obtained

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.

A

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.

B Total

1

5

2

6

3

8

4

8

5

7

6

6

7

8

8

12 60

_______________________________________________________________________ _ Kertas soalan ini mengandungi 18 halaman bercetak dan 2 halaman tidak bercetak [Lihat sebelah

For Examiner’s Use

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

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[40 marks] Answer all questions. 1 1 (a)

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

……………………………………………………………………………… ……. .[1 mark] (b)

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

Diagram 1.1 1 (b)(i)

1

x = ………………………… cm [1 mark] (ii) Diagram 1.2 shows the distance travelled by student X from his house to his school.

House

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.

1 (b)(ii)

2

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

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m SULIT 3 55/2 m (c) What are the precautionary steps to be taken into when measuring a length of an object?

For Examiner’s Use

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

1

[1 mark]

Total A1

[Lihat sebelah

5

For Examiner’s Use

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m SULIT 4 55/2 m 2 Diagram 2.1 shows an activity to determine the volume of air used by a process. 250 ml gas jar

Water

Diagram 2.1 2 (a)(i)

(a)

1

(i) Name the gas used in this activity. …………………………………………………………………………… … .[1 mark]

2 (a)(ii)

(ii) Name the process in 2(a)(i). 1

…………………………………………………………………………… … .[1 mark] (b)

Complete the word equation for the reaction in Diagram 2.1

2 (b)

Fuel +

+ water

2 [2 marks] 2 (c)

1

(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 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.

For Examiner’s Use

2 (d)

Diagram 2.2

1

[1 mark]

Total A2

[Lihat sebelah

6

For Examiner’s Use

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m SULIT 6 55/2 m 3 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. A

B

C

D

X Height

Y

Age O Diagram 3 (a)

A: ………………………………………….

3 (a)

D: ………………………………………….

2

3 (b)(i)

Name the stages of growth A and D.

[2 marks] (b)

(i) Which graph represent the growth curve for female? ………………………………………………………………………… …… .[1 mark]

1

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

3 (b)(ii)

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

1 3 (c)

(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.

2

3 (d)

2 Total A3

8

Class of food: ……………………………………………………………………. . Reason: …………………………………………………………………………... .[2 marks]

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial m SULIT 7 m 4 Diagram 4.1 shows a human digestive system.

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For Examiner’s Use

T

Diagram 4.1 (a)

Label three of the following structures in Diagram 4.1.

Stomach

Small intestine

Liver

Large intestine

Pancreas [3 marks]

(b)

State one function of organ T.

4 (a)

3 4 (b)

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

[Lihat sebelah

1

For Examiner’s Use

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

4 (c)

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

2 (d)

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

Mouth

X

Stomach

Intestines

Anus

Y

Diagram 4.3 What are represented by X and Y in the sequence of food movement in Diagram 4.3? 4 (d)

2 Total A4

8

X: …………………………………………. Y: …………………………………………. [2 marks]

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial m SULIT 9 m 5 Diagram 5.1 shows the structure of a generalised flower.

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For Examiner’s Use

L: …..……………

K: …..……………

Style Filament

M: …..…………… Ovule Sepal Receptacle

Diagram 5.1 (a)

Label K, L and M using the following words.

Ovary

Petal

Anther

Receptacle

Stigma [2 marks]

5 (a)

2

(b) What are the male gametes and female gametes called? Male gametes: ………………………………………….

5 (b)

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

[Lihat sebelah

2

For Examiner’s Use

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m 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 5 (c)

Table 5.2

2

[2 marks] (d)

5 (d)

1

Total A5

7

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]

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial m SULIT 11 m 6 Diagram 6.1 shows six organisms in a habitat.

Eagle

Chicken

Snake

Caterpillar

SULIT 55/2

For Examiner’s Use

Grasshopper

Green plant

Diagram 6.1 (a)

Based on Diagram 6.1, construct a food web.

6 (a)

[2 marks] [Lihat sebelah

2

For Examiner’s Use

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.

6 (b)

Sunlight chlorophyll

Water +

+

2

[2 marks] (c)

6 (c)(i)

1

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.

Number of organisms

I

II

III

Snake

Eagle Time

6 (c)(ii)

1

Total A6

6

Diagram 6.2 [1 mark]

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

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For Examiner’s Use

[20 marks] Answer all questions. 7

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

R

S

T

U

Diagram 7 (a)

State the physical characteristics of animals R, S, T and U. R: ............................................................................................................................

. S: ............................................................................................................................ . T: ............................................................................................................................ . U: ............................................................................................................................ [4 marks] [Lihat sebelah

7 (a)

4

For Examiner’s Use

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. R, S, T and U

Common characteristics

Name of animals

7 (b)

4

Total B7

8

[4 marks]

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial SULIT m] SULIT 15 55/2 m 8 Diagram 8.1 shows the apparatus set-up and the initial temperature reading of distilled water. The distilled water is cooled.

For Examiner’s Use

16

15

Ice sprinkled with common salt

Distilled water

Diagram 8.1 (a)

8 (a)

Record the initial temperature of the distilled water. …………………..ºC.

[1 mark]

m

[Lihat sebelah

1

For Examiner’s Use

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial m] SULIT 16 m (b) Table 8.2 shows the results of this experiment.

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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)

8 (b)(i)

Manipulated variable …………………………………………………………………………… … .[1 mark]

1

(ii) Responding variable 8 (b)(ii)

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

1

(iii) Constant variable

8 (b)(iii)

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

1

8 (c)

(c)

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

1 8 (d)

State a hypothesis based on the results in Table 8.2.

(d)

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

(e)

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

3 8 (e)(i)

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

1

…………………..ºC.

[1 mark]

m (ii) state the relationship between the temperature and time. 8 (e)(ii)

1

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

55/2 © 2009 Hak Cipta Mathematics and Science Tutorial m] SULIT 17 m Graph for Question 8(d)

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Temperature/ºC

16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 O Time/min O

5

10

15

20

25

[Lihat sebelah

For Examiner’s Use 8 (f)

1

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

SULIT 18

55/2

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? 8 (g)

1

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

END OF QUESTION PAPER

Total B8

12

SULIT 55/2

Use this scale for Question 1(b)(i) and Question 1(b)(ii)

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

55/2 © m]

2009 Hak Cipta Mathematics and Science Tutorial

SULIT