TERHAD

SMK SRI AMAN

55

UJIAN BERTULIS 2 Jam

MEI

.

Disediakan oleh: …………………….. (PAINE ANYIE) PANITIA SAINS SMK SRI AMAN

Panduan Pemarkahan ini mengandungi 10 halaman bercetak termasuk muka depan. 55

1

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55

No

Marks Sub Total 1 4 1 1 1 4

Marking Scheme

1

(a) (b) (c) (d)

   

2

(a)

S: Hair / Bulu roma T: Sweat pore / Liang peluh

(b)

(i) (ii) (iii) (iv)



1 1

2

1+1

2

 4

3

(a)

1+1

2

(b)

1

1

(c)

1

1

Measuring cylinder Silinder penyukat



Boiling tube Tabung didih

Burette Buret



Test tube Tabung uji



4

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(a)

Marks Sub Total 1+1 2

(b)

1+1

No 4

Marking Scheme

2

4

5

(a)

(i) (ii)

(b)

(i)

maintenance / pengekalan fluid / bendalir P1: P2:

(ii)

P1: P2:

1 1

2

Josh’s clothes. Baju Josh. Because the air trapped between the layers or clothes will act as an insulator. Kerana udara yang terperangkap di antara lapisan baju akan bertindak sebagai penebat haba.

1

4

Body hairs stand on end Bulu roma badan berdiri tegak to trap heat when the body temperature drops untuk memerangkap haba ketika suhu badan menurun.

1

1

1

6 55

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No 6

Marks Sub Total 1 2 1

Marking Scheme (a)

(b)

(i) (ii)

open / terbuka closed / tertutup

Guard cells / sel pengawal

(c)

1

1 3

(i)

Helps in reducing water loss through transpiration Membantu pokok untuk mengurangkan kehilangan air melalui transpirasi.

1

(ii)

Time A: 9.00 a.m./ Masa A: 9.00 pagi Time B: 12.00 p.m./ Masa B: 12.00 tengahari

1 1

Remarks/ Catatan Time A / Masa A [Accept anytime between 8.00 a.m. to 11.00 a.m.] [Terima masa di antara 8.00 pagi ke 11.00 pagi] Time B / Masa B [Accept anytime between 12.00 p.m. to 2.00 p.m.] [Terima masa di antara 12.00 tengahari ke 2.00 petang] 6 7

(a)

(i)

Because it is denser than the water Ia lebih tumpat daripada air

1

(ii)

Shape it like a boat. Bentukkan ia seperti sebuah bot.

1

(b)

(i) (ii)

volume / isipadu water displacement / sesaran air

(c)

P1: Mass of liquid X = 320 – 230 g = 90 g P2: Density

2

1 1

2

1+1

2

-------- 1 m

=

90 g . 50 cm3 = 1.8 g/cm3

-------- 1 m 6

8

(a)

(i) (ii)

M K

1 1

2

(b)

(i)

To absorb oxygen into the body/ Menyerap oksigen masuk ke dalam badan To excrete carbon dioxide / water vapour from the body Menyingkirkan karbon dioksida / wap air dari badan

1

2

Practice balanced diet / Amalkan pemakanan yang seimbang // Drink plenty of water / Minum air yang banyak // Eat vegetables / Makan sayur-sayuran // Eat fruits / Makan buah-buahan

1+1

(ii)

(c)

   

1

2

[Accept any two from the above] [Terima mana-mana dua dari atas] 6

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No 9

Marking Scheme (a)

(i)

(ii)

(b)

Student B sweats more than student A. Pelajar B berpeluh dengan lebih banyak berbanding dengan pelajar A.

Marks Sub Total 1 4

P1:

The body temperature of student B rises as he is under the hot sun. Suhu badan pelajar B meningkat kerana berada di bawah pancaran matahari.

1

P2:

When he sweats a lot, more heat can be removed from the body as the sweat evaporates. Apabila banyak berpeluh, lebih banyak haba dapat disingkirkan dari badan semasa peluh menyejat.

1

P3:

Therefore, a normal body temperature can be maintained. Oleh itu, suhu badan yang normal dapat dikekalkan.

1

(i) ✓ (ii) ✓ (iii)

1 1

2

(c)

Increases / Meningkat

1

1

(d)

Excretory system / Sistem perkumuhan // Endocrine system / sistem endokrin

1

1

[Accept any from the above] [Terima mana-mana dari atas] 8

55

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No 10

Marking Scheme (a)

Process Y: Water Proses Y: Air Process Z: Oxygen Proses Z: Oksigen

(b)

(i)

(ii)

(iii)

Marks Sub Total 1 2

1

Y: Photosynthesis / Fotosintesis Z: Cell respiration / Respirasi sel

1 1

P1:

Plants absorb carbon dioxide and water through the process Y and produce oxygen and glucose. Tumbuhan menyerap karbon dioksida dan air melalui proses Y dan menghasilkan oksigen dan glukosa.

1

P2:

The animals use oxygen and glucose through the process Z and release carbon dioxide and water. Haiwan menggunakan oksigen dan glukosa melalui proses Z dan membebaskan karbon dioksida dan air.

1

P1:

Process Y takes place in chloroplasts while the process Z takes place in the mitochondria Proses Y berlaku dalam kloroplas manakala proses Z berlaku dalam mitokondria

1

P2:

Process Y of absorbing energy while process Z releases energy. Proses Y menyerap tenaga manakala proses Z membebaskan tenaga.

1

6

Remarks/ Catatan: Accept any of the differences below. Terima mana-mana perbezaan di bawah. Process Y / Proses Y Uses energy from sunlight. Menggunakan tenaga daripada cahaya matahari Occurs in plants and microorganisms. Berlaku pada tumbuhan dan mikroorganisma Synthesising glucose Mensintesis glukosa Uses carbon dioxide and water to produce oxygen and glucose. Menggunakan karbon dioksida dan air untuk menghasilkan oksigen dan glukosa Occurs when there is light Berlaku ketika ada cahaya

Process Z / Proses Z Uses chemical energy from the food. Menggunakan tenaga kimia dalam makanan Occurs in human, animals, plants and microorganisms. Berlaku pada manusia, haiwan, tumbuhan dan mikroorganisma Decomposing glucose to produces energy. Menguraikan glukosa untuk penghasilan tenaga Uses oxygen and glucose to produce carbon dioxide, water and energy. Menggunakan oksigen dan glukosa untuk menghasilkan karbon dioksida, air dan tenaga Always occurs. Sentiasa berlaku 8

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No 11

Marking Scheme (a)

(i)

  

Cell wall / Dinding sel // Chloroplast / Kloroplas // Vacuole / Vakuol

Marks Sub Total 1 5

[Accept any one answer from the above] [Terima mana-mana satu jawapan dri atas] (ii)

  

To support the body / Menyokong badan // To protect internal organs / Melindungi organ dalaman // Helps in movement / Membantu pergerakan

1+1

[Accept any two answers from the above] [Terima mana-mana dua jawapan dri atas]

(iii)

(b)

(c)

P1:

Organsm T can make its own food. Organism T boleh membuat makanannya sendiri.

P2:

Organism T has chloroplast. Organisma T mempunyai kloroplas,

P1:

This organism has the properties of both animal cells and plant cells. Organisma ini mempunyai sifat kedua-dua sel haiwan dan sel tumbuhan.

P2:

As plant cells, these organisms contain chlorophyll for photosynthesis to produce food. Seperti sel tumbuhan, organisma ini mengandungi klorofil untuk melakukan fotosintesis / untuk menghasilkan makanan.

P3:

As animal cells, these organisms have flagella or tails to move towards sunlight. Seperti sel haiwan, organisma ini mempunyai flagela atau ekor untuk bergerak ke arah cahaya matahari.

P1:

Similarity / Persamaan: Both groups are microorganisms. Kedua-dua kumpulan merupakan mikroorganisma.

P2:

Difference / Perbezaan: Amoeba and Paramecium are unicellular organisms while Hydra and Mucor are multicellular organisms. Kumpulan Amoeba dan Paramecium merupakan unisel manakala Hydra dan Mucor ialah multisel.

1+1

1+1+1

3

1+1

2

P1+P2 10

55

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No 12

Marking Scheme (a)

(b)

The longer the length of the rope, the longer time taken to for one complete oscillation. Semakin panjang tali buaian, semakin lama masa yang diambil untuk melengkap satu ayunan. Manipulated variable Pembolehubah dimanipulasikan Responding variables Pembolehubah bergerak balas Fixed variables Pembolehubah dimalarkan

(c)

Length of the rope Panjang tali Time taken for one complete oscillation Masa untuk satu ayunan lengkap Tyre size / Type of tyre / Mass of tyre Saiz tayar / Jenis tayar / Jisim tayar

Length of rope (m) Panjang tali (m)

Average Purata

1.2

36

1.6

48

(d)

P1: P2:

Marks Sub Total 1 1

1+1+1

3

1+1

2

1+1

2

type of graph (line graph) jenis graf (graf garis) Plot (at least 3 correct) Plot (sekurang-kurangnya 3 betul)

(e)

When the length of the rope increases, the time taken for 10 compete oscillations increases Apabila panjang tali meningkat, masa untuk 10 ayunan lengkap juga meningkat.

1

1

(f)

45 s

1

1 10

55

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No 13

Marking Scheme (a)

(b)

Manipulated variable Pembolehubah dimanipulasikan Responding variables Pembolehubah bergerak balas Fixed variables Pembolehubah dimalarkan

Step Langkah 2

3 4

(c)

Procedure Prosedur D F G

The presence of chlorophyll Kehadiran klorofil Colour changes of iodine solution Perubahan warna larutan iodin Type of plant Jenis tumbuhan

Marks Sub Total 1+1+1 3

Explanation Penerangan Put the leaves into the boiling tube containing ethanol and immersed in a water bath. Masukkan daun ke dalam tabung didih yang mengandungi etanol dan direndam di dalam kukus air. Dip the leaves into hot water. Celupkan daun ke dalam air panas. Put a few drops of iodine solution over the leaves. Titiskan beberapa titik larutan iodin ke atas daun.

1+1+1

3

Purpose Tujuan To soften the leaves / Untuk melembutkan daun To remove chlorophyll / Untuk menyingkirkan klorofil To break the cell wall / Untuk memecahkan dinding sel

1+1+1

3

1

1

1

1

(d) Dark blue Biru tua Brown Perang

[Diagram must be labelled correctly – 1 mark] [Rajah mesti dilabel dengan betul – 1 markah]

(e)

Chlorophyll is a green pigment found on the leaves. Klorofil ialah pigmen hijau yang terdapat pada daun. [Accept any reasonable answer] [Terima jawapan yang munasabah]

(f)

Light energy to chemical energy. Tenaga cahaya kepada tenaga kimia

1

12

55

9

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TERHAD

55

No 14

Marking Scheme (a)

(i)

Diagram/ Rajah

P1:

Marks Sub Total 1 6

Diagram / Rajah [Accept reasonable diagram] [Terima rajah yang munasabah ]

Explanation / Penerangan: P2:

Fill the basin with tap water. Isikan besen dengan air pili.

1

P3:

Put the eggs one by one. Masukkan telur satu per satu.

1

P4:

Collect the floating eggs. Kutip telur yang terapung.

1

[Accept reasonable answer] [Terima jawapan yang munasabah] (ii)

P1:

Old egg has air pockets between the egg white with egg shells. Telur lama mempunyai poket udara di antara putih telur dengan cengkerang telur.

1

P2:

The air pocket causing the old egg floats / less dense than water. Poket udara menyebabkan telur lama itu terapung / kurang tumpat daripada air.

1

[Accept reasonable answer] [Terima jawapan yang munasabah] (b)

(i)

(ii)

(c)

Cube Kubus X

Density (g/cm3) Ketumpatan (g/cm3) 0.7

Z

2.7

1+1

Floating / Terapung

(iii) The bigger the mass of an object, the higher the density. Semakin bertambah jisim sesuatu objek, ketumpatannya akan bertambah.

1

P1:

1

P2:

Floats contained with air which is less dense than water Pelampung mengandungi udara yang kurang tumpat daripada air. That is why children can stay afloat while in the swimming pool. Oleh itu, kanak-kanak kekal terapung semasa di kolam renang.

1

1 8

55

10

TERHAD

2017 PPT SAINS T1 - Panduan Pemarkahan.pdf

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