Bhg B Pra AR2

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SULIT Section B Bahagian B [20 marks] [20 markah] Answer all questions. Jawab semua soalanWrite your answers in the spaces provided. Tulis jawapan anda di ruang yang disediakan1. A group of pupils carries out an investigation about the characteristics of seed dispersal. Diagram 1 shows the result. Sekumpulan murid menjalankan penyiasatan tentang ciri- ciri pencaran biji benih.Rajah 1 menunjukkan keputusan penyiasatan. [Lihat halaman sebelah 028 © 2015 SULIT Seed/Biji benih

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Transcript of Bhg B Pra AR2

Page 1: Bhg  B Pra AR2

SULIT

Section BBahagian B

[20 marks][20 markah]

Answer all questions.Jawab semua soalan。

Write your answers in the spaces provided.Tulis jawapan anda di ruang yang disediakan。

1. A group of pupils carries out an investigation about the characteristics of seed dispersal. Diagram 1 shows the result.Sekumpulan murid menjalankan penyiasatan tentang ciri-ciri pencaran biji

benih.Rajah 1 menunjukkan keputusan penyiasatan.

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Seed/Biji benih

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Diagram 1/Rajah1(a) What is changed (manipulated variable) in this investigation?

Apakah yang diubah(Pembolehubah manipulasi) di dalam eksperimen ini?

____________________________________________________________(1 mark/ 1 markah)

(b)Based on group P and Q ways to spread seeds in different ways, state one inference.Nyatakan satu inferen berdasarkan cara penyebaran biji benih kumpulan P dan Q yang berbeza.

_____________________________________________________________(1 mark/ 1 markah)

(c) If the seed is not spread far enough, predict one observation.Nyatakan satu pemerhatian sekiranya biji benih tidak disebarkan dengan jarak yang jauh。

_____________________________________________________________(1 mark/ 1 markah)

(d)What conclusion can be made based on the given information?Apakah kesimpulan yang dapat dibuat berdasarkan maklumat yang diberikan?

_______________________________________________________________________

——————————————————————————————

—————— (1 mark/ 1 markah)

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2. Diagram 2 below shows the materials used in an investigation . Rajah 2 menunjukkan bahan yang digunakan di dalam satu penyiasatan.

Small square card Kad segiempat sama kecil

Diagram 2

Rajah 2

Instructions:Arahan:

1. Fill the surface of table A, B and C with the small square cards.2. Count and record the number of small square cards used to fill up the surface

of the table.3. Table 1 shows the result.

1. 把正方形硬卡分别排满 3张桌子的表面,A、B和 C。2. 计算并记录排满 3张桌子表面的正方形硬卡数量。3. 表一显示实验结果。4.

Table Jadual A B C

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AB C

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The number of small square cardBilanagan kad segiempat sama kecil

6 10 20

Table 1/Jadual 1(a) What is the purpose (aim) of this investigation?

Apakah tujuan Eksperimen?

_____________________________________________________________

_____________________________________________________________(1 mark/ 1 分)

(b)State one relationship between what is changed (manipulated variable) and what is observed (responding variable).

写出必须改变的事项(操纵性变数)和必须观察的事项(反应性变数)之间的关系。

_____________________________________________________________

_____________________________________________________________(1 mark/ 1 分)

(c) What is the trend of change in the number of small square cards required during this investigation?

在这项试验中,正方形硬卡数量的变化形式是怎样的?

_____________________________________________________________(1 mark/ 1 分)

(d)What is kept the same (constant variable) in this investigation ?

在这项实验中必须保持不变的事项(固定性变数)是什么?

____________________________________________________________

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(1 mark/ 1 分)

3. Diagram 3 shows three materials to be bury underground. After one month, the materials is dug out for observation.图 3显示三种物质分别埋在泥土里。一个月后,埋在土壤里的物质被挖出来并做出观察。

Newspaper Foods Plastic bottle报纸 食物 塑料瓶

Diagram 3图 3

(a) State

写出

i. what is kept the same (constant variable) in this investigation,

在这项实验中保持不变的事项(固定性变数),

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(1 mark/ 1 分)

ii. what is observed ( responding variable) in this investigation.

在这项实验中必须观察的事项(反应性变数)。

_________________________________________________________

(1 mark/ 1 分)

(b) Give one reason (inference) based on the observation of this investigation.

根据这项实验的观察结果,写出一个原因(推断)。

_____________________________________________________________(1 mark/ 1 分)

(c) Suggest one observation to support the reason (inference) in 3 (b) . 写出一个观察,以支持你在 3(b)项的原因(推断)。

____________________________________________________________(1 mark/ 1 分)

(d)Predict what will happen if the plastic bottles are buried underground for another one month?

如果把塑料瓶再埋在泥土里一个月,预测观察到的结果。

_____________________________________________________________(1 mark/ 1 分)

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4. Diagram 4 shows the information gathered by a group of pupils during an eclipse of the Sun.

图 4显示由一组学生在发生日食时收集到的资料。

Size of the Sun that can see

可看到的太阳面积

 

     

     

         

          

                   Time /时间(a.m)0 11.35 11.37 11.39 11.41 11.43

Diagram 3/图3

(a) What is the purpose (aim) of the investigation?这项实验的目的是什么?

_____________________________________________________________

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Size of the Sun that can see

可看到的太阳面积

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_____________________________________________________________(1 mark/ 1 分)

(b)State the trend in the change of the size of the Sun that we can see.

写出发生日食时可看到的太阳面积的变化形式。

_____________________________________________________________ (1 mark/ 1 分)

(c) State one information gathered in this investigation.

写出这项实验中所收集到的一个资料。

_____________________________________________________________(1 mark/ 1 分)

(d)State one reason (inference) about the observation at 10.39a.m.

针对在 11.39a.m观察到的结果,写出一个原因(推断)。

____________________________________________________________(1 mark/ 1 分)

5. Diagram 5 shows three books placed on the two plastic cup as shown X, Y and Z. The table is shake with the same force .

阿里把书本和塑料杯子排列如图 5的三个结构,X、Y和 Z。他用同样的力道不停地轻摇桌子。

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Book书本

Plastic cup塑料杯子

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Diagram 5图 5

(a) State one information gathered in this investigation.

写出在这项实验中必须收集的一个资料。

(1 mark/ 1 分)

(b)What conclusion can be made from this investigation?

从这项实验中能做出什么结论?

________________________________________________________________

(1 mark/ 1 分)

Types of the materials used can affect the strength of a structure.

物体的制造材料会影响其强度。

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X ZY

Table

桌子

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(c) If you want to conduct an experiment based on the above statement, what is the thing that you need to be changed.

如果要进行一项有关上述说明的实验,试提出你必须改变的事项。

(1 mark/ 1 分)

END OF SECTION BB组完

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