Practice paper, not an official KPM paper
Sains Tahun 4
Ujian Akhir Sesi AkademikEnd of Academic Session Test
SainsScience
Darjah 4, 1 jam 15 minit / 1 hour 15 minutes, 50 marks
Nama / Name
Kelas / Class
Tarikh / Date
Markah / Marks: / 50
Instructions
- Jawab semua soalan.Answer all questions.
- Bahagian A: bulatkan satu jawapan yang betul.Section A: circle one correct answer.
- Bahagian B dan C: tulis jawapan anda di ruang yang disediakan.Sections B and C: write your answers in the spaces provided.
Answer schemes are in English (DLP).
Practice shows answers as you go. Exam times you and hides answers until you submit.
Bahagian ASection A
10 marksJawab semua soalan. Setiap soalan diikuti oleh empat pilihan jawapan, A, B, C dan D. Bulatkan satu jawapan yang betul.Answer all questions. Each question has four options, A, B, C and D. Circle one correct answer.
1
Question 1
Jadual 1 menunjukkan ketinggian tiga pokok kacang hijau yang diberi air dengan isi padu berbeza selama tiga minggu.
Apakah tafsiran data yang betul?Table 1 shows the height of three green bean plants given different volumes of water for three weeks.
Which interpretation of the data is correct?
| Isi padu air setiap hari | 20 mℓ | 40 mℓ | 60 mℓ |
|---|---|---|---|
| Ketinggian pokok | 6 cm | 9 cm | 12 cm |
| Volume of water a day | 20 mℓ | 40 mℓ | 60 mℓ |
|---|---|---|---|
| Height of plant | 6 cm | 9 cm | 12 cm |
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C
Interpreting data means saying what the numbers show. 6 cm, 9 cm and 12 cm rise as the water goes 20, 40, 60 mℓ, so more water gives a taller plant.
2
Question 2
Organ manakah yang menyingkirkan peluh daripada badan?Which organ removes sweat from the body?
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A
Sweat is a waste product removed through the skin. The lungs remove carbon dioxide and the kidneys remove urine. The large intestine passes out faeces (defecation, not excretion).
3
Question 3
Seekor kelawar mempunyai bulu halus, bernafas dengan peparu dan melahirkan anak. Kelawar terbang pada waktu malam. Kelawar ialahA bat has fine hair, breathes with lungs and gives birth to its young. The bat flies at night. The bat is a
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B
A mammal has fine hair and gives birth. Flying does not make an animal a bird: birds have feathers and lay eggs.
4
Question 4
Bahagian tumbuhan manakah yang menyerap karbon dioksida untuk fotosintesis?Which part of a plant takes in carbon dioxide for photosynthesis?
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D
Carbon dioxide from the air enters the plant through the leaves. The roots take in water.
5
Question 5
Jadual 2 menunjukkan saiz bayang-bayang sebuah blok kayu apabila jarak antara lampu suluh dengan blok diubah. Jarak antara blok dengan skrin tidak berubah.
Apakah kesimpulan penyiasatan ini?Table 2 shows the size of the shadow of a wooden block when the distance from the torch to the block is changed. The distance from the block to the screen stays the same.
What is the conclusion of this investigation?
| Jarak lampu suluh ke blok | 10 cm | 20 cm | 30 cm |
|---|---|---|---|
| Tinggi bayang-bayang | 18 cm | 12 cm | 10 cm |
| Distance from torch to block | 10 cm | 20 cm | 30 cm |
|---|---|---|---|
| Height of shadow | 18 cm | 12 cm | 10 cm |
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B
The shadow falls from 18 cm to 12 cm to 10 cm as the torch moves from 10 cm to 30 cm away. So a torch further away gives a smaller shadow.
6
Question 6
Nadia bertepuk tangan di dalam sebuah dewan kosong. Dia mendengar bunyi tepukan itu sekali lagi. Mengapakah hal ini berlaku?Nadia claps her hands in an empty hall. She hears the clap again. Why does this happen?
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C
Sound bounces back from hard surfaces. This is reflection of sound and we hear it as an echo.
7
Question 7
Rantaian tenaga manakah yang betul apabila sebuah kipas elektrik berputar?Which energy chain is correct when an electric fan turns?
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D
A fan uses electrical energy and changes it to kinetic energy to turn the blades.
8
Question 8
Jadual 3 menunjukkan ciri empat bahan, P, Q, R dan S.
Bahan manakah yang paling sesuai untuk membuat pelampung jaring ikan?Table 3 shows the properties of four materials, P, Q, R and S.
Which material is the most suitable to make a float for a fishing net?
| Bahan | Terapung di atas air | Menyerap air |
|---|---|---|
| P | Ya | Tidak |
| Q | Ya | Ya |
| R | Tidak | Tidak |
| S | Tidak | Ya |
| Material | Floats on water | Absorbs water |
|---|---|---|
| P | Yes | No |
| Q | Yes | Yes |
| R | No | No |
| S | No | Yes |
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A
A float must stay on the water surface (floats) and must not fill with water (does not absorb water). Only P has both properties. Q floats but soaks up water.
9
Question 9
Bumi membuat satu putaran lengkap pada paksinya dalam 24 jam. Berapakah bilangan putaran lengkap yang dibuat oleh Bumi dalam seminggu?Earth makes one complete rotation on its axis in 24 hours. How many complete rotations does Earth make in one week?
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C
24 hours is one day, so one rotation a day. A week has 7 days, so 7 rotations. 365 is the number of days in a year, not a week.
10
Question 10
Sebuah tanjakan dibina di sebelah anak tangga dewan sekolah supaya kerusi roda boleh dinaikkan dengan mudah. Tanjakan itu ialah mesin ringkas jenisA ramp is built beside the steps of the school hall so that wheelchairs can go up easily. The ramp is a simple machine called a
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B
A tilted flat surface with ends at different heights is an inclined plane. A ramp is one.
Bahagian BSection B
8 marksJawab semua soalan.Answer all questions.
11
Question 11
Earth berputar pada paksinya sekali dalam 24 jam dan bergerak mengelilingi Matahari sekali dalam 365 hari. Hana berkata, "Malaysia mengalami siang dan malam kerana Bumi bergerak mengelilingi Matahari."Earth spins once on its axis in 24 hours and goes around the Sun once in 365 days. Hana says, "Malaysia has day and night because Earth goes around the Sun."
[2 marks]
(a)Adakah Hana betul? Terangkan jawapan anda.Is Hana correct? Explain your answer.
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Tick each point you got.
[1 mark]
(b)Dalam masa 6 jam, Bumi berputar pada paksinya sebanyakIn 6 hours, Earth rotates on its axis through
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a quarter of a turn
One full turn takes 24 hours. 6 hours is 6 / 24 = one quarter of a turn.
[1 mark]
(c)Semasa Bumi membuat satu peredaran mengelilingi Matahari, Bumi berputar pada paksinya kira-kiraWhile Earth makes one revolution around the Sun, it rotates on its axis about
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365 times
One rotation takes one day and one revolution takes about 365 days, so Earth rotates about 365 times in one year.
12
Question 12
Sebuah panel solar di bumbung sekolah menukar tenaga Matahari kepada tenaga untuk menyalakan sebuah lampu. Rajah rantaian tenaga: Tenaga cahaya → panel solar → (i) → lampu → (ii) + tenaga haba.A solar panel on the school roof changes energy from the Sun to light a lamp. Energy chain: Light energy → solar panel → (i) → lamp → (ii) + heat energy.
[2 marks]
(a)Tulis bentuk tenaga (i) dan (ii).Write the forms of energy (i) and (ii).
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Tick each point you got.
[1 mark]
(b)Sekolah memilih panel solar dan bukan penjana diesel. Tenaga Matahari ialah sumber tenaga yangThe school chooses solar panels instead of a diesel generator. Solar energy is a source that is
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renewable
Sunlight does not run out, but diesel (a fossil fuel) is limited.
[1 mark]
(c)Lampu itu menjadi panas selepas lama menyala. Ini menunjukkan sebahagian tenaga elektrik ditukarkan kepadaThe lamp becomes hot after being on for a long time. This shows that some of the electrical energy is changed to
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heat energy
Bahagian CSection C
32 marksJawab semua soalan.Answer all questions.
13
Question 13
Siti mengkaji bahan yang digunakan untuk membuat beberapa objek. Jadual 6 menunjukkan tiga objek dan bahannya. Jadual 7 menunjukkan keputusan ujian ke atas bahan P, Q, R dan S.
Siti studies the materials used to make some objects. Table 6 shows three objects and their materials. Table 7 shows the results of tests on materials P, Q, R and S.
| Objek | Bahan | Sumber asas |
|---|---|---|
| Kasut kulit | Kulit | (i) |
| Baldi plastik | Plastik | (ii) |
| Sarung tangan getah | Getah | (iii) |
| Bahan | Terapung | Menyerap air | Mengalirkan elektrik |
|---|---|---|---|
| P | Ya | Tidak | Tidak |
| Q | Tidak | Tidak | Ya |
| R | Ya | Ya | Tidak |
| S | Tidak | Ya | Tidak |
| Object | Material | Basic source |
|---|---|---|
| Leather shoes | Leather | (i) |
| Plastic bucket | Plastic | (ii) |
| Rubber glove | Rubber | (iii) |
| Material | Floats | Absorbs water | Conducts electricity |
|---|---|---|---|
| P | Yes | No | No |
| Q | No | No | Yes |
| R | Yes | Yes | No |
| S | No | Yes | No |
[3 marks]
(a)Tulis sumber asas (i), (ii) dan (iii) dalam Jadual 6.Write the basic sources (i), (ii) and (iii) in Table 6.
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Leather comes from animal skin, plastic is made from petroleum and rubber comes from rubber trees (plants).
Tick each point you got.
[1 mark]
(b)Sebuah sauh kecil untuk bot mesti tenggelam ke dasar dan tidak menyerap air. Bahan manakah yang paling sesuai untuk membuat sauh itu?A small anchor for a boat must sink to the bottom and must not absorb water. Which material is the most suitable to make the anchor?
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Q
Q is the only material that sinks and does not absorb water. S sinks but soaks up water.
[2 marks]
(c)Bahan manakah yang boleh digunakan untuk membuat bahagian dalam wayar elektrik? Beri satu sebab.Which material can be used to make the inner part of an electric wire? Give one reason.
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Tick each point you got.
[2 marks]
(d)Terangkan bagaimana Siti menguji sama ada sesuatu bahan menyerap air.Describe how Siti can test whether a material absorbs water.
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Tick each point you got.
14
Question 14
Rajah 1 menunjukkan Hamid menggunakan sebatang rod logam untuk mengangkat sebiji batu besar. Dia meletakkan sebiji batu kecil, Q, di bawah rod pada jarak yang berlainan dari batu besar. Jadual 8 menunjukkan keputusannya.
Diagram 1 shows Hamid using a metal rod to lift a big rock. He puts a small stone, Q, under the rod at different distances from the big rock. Table 8 shows his results.
| Jarak batu Q dari batu besar | 10 cm | 30 cm | 50 cm |
|---|---|---|---|
| Kesukaran mengangkat batu besar | Mudah | Agak sukar | Sangat sukar |
| Distance of stone Q from the big rock | 10 cm | 30 cm | 50 cm |
|---|---|---|---|
| How hard it is to lift the big rock | Easy | Quite hard | Very hard |
[3 marks]
(a)Tulis nama bahagian P, Q dan R pada tuas itu.
beban fulkrum dayaName parts P, Q and R of the lever: load, fulcrum, force.
beban fulkrum dayaName parts P, Q and R of the lever: load, fulcrum, force.
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Tick each point you got.
[2 marks]
(b)Nyatakan pemboleh ubah dimanipulasikan dan pemboleh ubah bergerak balas.State the manipulated variable and the responding variable.
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Tick each point you got.
[1 mark]
(c)Nyatakan kesimpulan penyiasatan ini.State the conclusion of this investigation.
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At 10 cm it is easy; at 50 cm it is very hard.
Tick each point you got.
[2 marks]
(d)Hamid mahu mengangkat sebatang kayu balak yang lebih berat dengan rod yang sama tetapi tidak berjaya. Apakah yang perlu dilakukannya? Beri satu sebab.Hamid wants to lift a heavier log with the same rod but he cannot. What should he do? Give a reason.
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Tick each point you got.
15
Question 15
Rajah 2 menunjukkan tiga pasu pokok yang sama, P, Q dan R. Setiap pokok pada mulanya setinggi 10 cm. Jadual 9 menunjukkan keadaan pokok selepas 14 hari.
Diagram 2 shows three identical potted plants, P, Q and R. Each plant was 10 cm tall at the start. Table 9 shows the condition of the plants after 14 days.
| Pokok | Warna daun | Ketinggian selepas 14 hari |
|---|---|---|
| P | Hijau | 30 cm |
| Q | Kuning dan layu | 12 cm |
| R | Pucat dan lemah | 14 cm |
| Plant | Colour of leaves | Height after 14 days |
|---|---|---|
| P | Green | 30 cm |
| Q | Yellow and wilted | 12 cm |
| R | Pale and weak | 14 cm |
[2 marks]
(a)Apakah yang diperlukan untuk fotosintesis yang tidak diperoleh oleh (i) pokok Q, (ii) pokok R?What does (i) plant Q, (ii) plant R not get that is needed for photosynthesis?
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[1 mark]
(b)Berapakah pertambahan ketinggian pokok P?By how many centimetres did plant P grow?
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[1 mark]
(c)Buat satu inferens mengapa pokok R menjadi pucat.Make one inference why plant R became pale.
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[1 mark]
(d)Pokok Q kemudian disiram dengan 50 mℓ air setiap hari dan diletakkan di bawah cahaya matahari selama seminggu lagi. Ramalkan keadaan pokok Q.Plant Q is then given 50 mℓ of water every day in the sunlight for one more week. Predict the condition of plant Q.
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[2 marks]
(e)Nyatakan kesimpulan penyiasatan ini.State the conclusion of this investigation.
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[1 mark]
(f)Namakan gas yang dibebaskan oleh pokok P ke udara semasa fotosintesis.Name the gas that plant P releases into the air during photosynthesis.
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16
Question 16
Aisyah menjatuhkan sebiji bola getah dari empat ketinggian berbeza ke atas lantai konkrit. Dia mengukur ketinggian lantunan bola itu dengan pembaris meter. Rajah 3 menunjukkan keputusannya.Aisyah drops a rubber ball from four different heights onto a concrete floor. She measures how high the ball bounces with a metre rule. Diagram 3 shows her results.
[3 marks]
(a)Nyatakan pemboleh ubah dimanipulasikan, pemboleh ubah bergerak balas dan satu pemboleh ubah malar.State the manipulated variable, the responding variable and one constant variable.
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[1 mark]
(b)Lengkapkan hipotesis: Apabila ketinggian bola dijatuhkan bertambah, ketinggian lantunan bola ______.Complete the hypothesis: As the height the ball is dropped from increases, the bounce height of the ball ______.
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Tick each point you got.
[1 mark]
(c)Berapakah perbezaan ketinggian lantunan bola yang dijatuhkan dari 80 cm dengan bola yang dijatuhkan dari 20 cm?What is the difference between the bounce height of the ball dropped from 80 cm and the one dropped from 20 cm?
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[1 mark]
(d)Ramalkan ketinggian lantunan bola jika dijatuhkan dari 100 cm.Predict the bounce height of the ball if it is dropped from 100 cm.
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[1 mark]
(e)Nyatakan kesimpulan penyiasatan ini.State the conclusion of this investigation.
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[1 mark]
(f)Aisyah menukar lantai konkrit kepada permaidani untuk jatuhan 60 cm. Mengapakah ujian ini tidak adil?For the 60 cm drop Aisyah changes the concrete floor to a carpet. Why is this test not fair?
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Tick each point you got.
Test specification (JSU)
| Unit | Remembering | Understanding | Applying | Analysing | Evaluating | Creating | Items | marks |
|---|---|---|---|---|---|---|---|---|
| 1. Scientific skills | – | 1 (1) | – | 1 (8) | – | – | 2 | 9 |
| 2. Humans | 1 (1) | – | – | – | – | – | 1 | 1 |
| 3. Animals | – | – | 1 (1) | – | – | – | 1 | 1 |
| 4. Plants | 1 (1) | – | 1 (8) | – | – | – | 2 | 9 |
| 5. Properties of light | – | 1 (1) | – | – | – | – | 1 | 1 |
| 6. Sound | – | 1 (1) | – | – | – | – | 1 | 1 |
| 7. Energy | – | 1 (1) | 1 (4) | – | – | – | 2 | 5 |
| 8. Materials | – | – | 1 (8) | 1 (1) | – | – | 2 | 9 |
| 9. Earth | – | – | 1 (1) | 1 (4) | – | – | 2 | 5 |
| 10. Machines | – | – | 2 (9) | – | – | – | 2 | 9 |
| Total | 2 (2) | 4 (4) | 7 (31) | 3 (13) | 0 (0) | 0 (0) | 16 | 50 |
Each cell shows items (marks).