first term science test

Peperiksaan Pertengahan Tahun

Nama: ……………………………… Kelas: …………………….. Tarikh: …………

BAHAGIAN A [30 markah] Masa: 45 minit

Jawab semua soalan.Arahan: Setiap soalan diberi pilihan jawapan, A, B, C and D. Pilih jawapan yang tepat.

1 Gambarajah dibawah menunjukkan dua organism yang dilabel X dan Y.

X Y

Kumpulan manakah X dan Y tergolong dalam klasifikasi mikroorganisma Xdan Y?

X Y

A Bakteria Protozoa

B Fungus/fungi Virus

C Virus Bakteria

D Protozoa Fungus/fungi

2 Maklumat di bawah merupakan bahan-bahan untuk membuat doh.

Yang manakah antara bahan berikut menyebabkan doh tepung mengembang?

A FlourB Yeast C SugarD Warm water

1 cawan tepung ½ cawan air suam 1 sudu teh yis kering 1 sudu teh gula

PEPERIKSAAN PERTENGAHAN TAHUN


3 Gambar di bawah menunjukkan keadaa sekeping roti selepas direnjis dengan air.

Selepas 3 hari Selepas 6 hari

Berdasarkan pemerhatian di atas, yang manakan pernyataan yang benar?

A Mikroorganisma bernafas.B Mikroorganisma bergerak.C Mikroorganisma membiak.D Mikroorganisma membuat makanannya sendiri.

4 Gambar di bawah menunjukkan sekeping roti yang berkulat diuji menggunakan mikroskop.

Roti yang berkulat

Organisma manakan yang dapat dilihat pada roti yang berkulat itu?

A B

C D


5 Alfred menguji sampel air kolam menggunakan mikroskop. Diagram di bawah menunjukkan pemerhatian Alfred.

mikrooranisma

Pemerhatian ini menunjukkan…A mikroorganisma membiak.B mikroorganisma bergerak.C mikroorganisma bernafas.D mikroorganisma boleh membuat makanannya sendiri.

6 Yang manakah di antara mikroorganisma berikut digunakan dalam pembuatan roti?

A MiteB YisC Virus D Bakterium

7 Which of the following are the harmful effects of microorganisms?I Cause illnessII Cause tooth decay III Cause air pollutionIV Cause food poisoningA I and III onlyB II and IV onlyC I, II and IV onlyD I, II, III and IV

8 The information below shows the activities of certain animals.

All these activities of the animals are related to …A growth.B conservation.C reproduction.D survival of species.

Lay many eggs Feed their young Lay eggs at hidden places


9 Which of the following animals takes care of its young?A B

C D

10 The pictures below show two types of seeds dispersed by animals.

Which of the following characteristics helps in the dispersal of the seeds shown above?A EdibleB Have hooks C Have a smell D Brightly coloured

11 Which of the following fruits or seeds is dispersed by the wind?A B

C D

P Q


12 Fruit X dries up and bursts to push the seeds out. Which of the following is fruit X?A Rubber B Mimosa C AngsanaD Pong-pong

13 The diagram below shows two types of fruits.

tomato guava

Which of the following characteristics help in the dispersal of the seeds of these fruits?I They are fleshy.II They have waxy skin.III They have small and hard seeds.A I and II onlyB I and III onlyC II and III onlyD I, II and III

14 The diagram below shows a food chain.

paddy plant

Which of the following are P and Q likely to be?

P Q

A Mouse Snake

B Chicken Mouse

C Bird Frog


D Caterpillar Grasshopper

15 Which of the following food chains is correct?A Goat → grass → snake B Chicken → snake → paddyC Leaves → grasshopper → birdD Fruit → caterpillar → butterfly

16 The diagram below shows an animal, X.

Which of the following shows the correct position of animal X in a food chain?A Fruit → fly → X → snakeB Fly → fruit → snake → XC X → snake → fly → fruitD Snake → X → fruit → fly

17 The information below shows three food chains.

Based on the above food chains, which of the following statements about plants are true?I They are the first stage of a food chain.II They do not depend on other organisms for food.III They will decrease in number when the number of herbivores decreases.A I and II onlyB I and III onlyC II and III onlyD I, II and III

18 The diagram below shows a food web.

Grasshopper

Frog Plants Bird

Carrot → Rabbit → Eagle Nectar → Butterfly → FrogLeaves → Deer → Tiger


Butterfly Snake

How many food chains are there in the food web?A 2B 3C 4D 5

19 The diagram below shows a food web. Caterpillar Chicken

Leaves X

Rabbit

Which of the following is most probably X?A Snail B Eagle C MouseD Sparrow

20 Which of the following is not a source of heat energy?A FireB The sun C Dry cellD Electric current

21 The picture below shows a lighted bulb.

Which of the following transformation of energy takes place in the lighted bulb?A Light energy → heat energy + solar energy B Solar energy → heat energy + light energy C Electrical energy → light energy + heat energy D Chemical energy → heat energy + solar energy


22 The following is the transformation of energy that takes place in appliance P when it is used.

Which of the following is most probably appliance P?A Lamp B RadioC ToasterD Television

23 Which of the following are the components in an electric circuit?I BulbII Wires III SwitchIV Dry cellA I and II onlyB I, II and III onlyC I, II and IV onlyD I, II, III and IV

24 What is the function of a switch in an electric circuit?A To make a bulb brighter B To supply electric currentC To connect a bulb to dry cellsD To complete or break a circuit

25 The diagram below shows an electric circuit.

Y

X

If bulb Y blows, what will happen to bulb X?A It will also blow.B It will be brighter.C It will not light up.

Electrical energy → light energy + sound energy


D It will become dimmer.

26 The picture below shows Chong observing the light of a candle through a bent rubber tube.

bent rubber tube

candle

However, Chong cannot see the light of the candle because …A the light is reflected by the rubber tube.B the light travels too fast in the rubber tube.C the light is absorbed by the dark rubber tube.D the light is blocked when it travels through the rubber tube.

27 The diagram below shows an opaque object being illuminated by a sources of light .

object

source of light

Which of the following shows the shadow which is formed?

A B

C D


28 The picture below shows a boy looking at his own image in a mirror.

image

What causes the phenomenon?A Light is blocked. B Light is scattered.C Light is reflected.D Light travels in a straight line.

29 The table below shows the change in the temperature of water in a beaker.

Time (minutes) 2 4 6 8

Temperature of water (C) 90 80 70 60

Which of the following statements is true?A The water is heated.B The water is boiled.C The water is cooled.D The water is placed in the sun.

30 The picture below shows the gaps made on a railway line.

gap

What is the purpose of leaving gaps between the rails?A To make the trains move more easily


B To make the railway line last longer C To enable the rails to expand during hot days D To enable the rails to contract during cold days


SECTION B [20 marks] Time: 30 minutes

Answer all the questions.Instructions: Write your answers in the spaces provided.

1 The bar chart below shows the number of living things in a habitat.

Number

Living things

(a) Write one food chain based on the bar chart.__________________________________________________________________

[1 mark]

(b) Name the carnivores in the food chain.__________________________________________________________________

[1 mark]

(c) State what will happen in each situation below.i. All the grasshoppers die in the area. ________________________________________________________________

[1 mark]

ii. The number of caterpillars suddenly increases in the habitat. _______________________________________________________________

[1 mark]

2 The diagram below shows an investigation carried out by a group of pupils.


X Y Z

Circuit Time taken for nichrome wire to turn red (second)X 30Y 20Z 10

(a) What is the purpose of the investigation?__________________________________________________________________

[1 mark]

(b) In this investigation, i. what is changed? ________________________________________________________________

[1 mark]

ii. what is measured? _______________________________________________________________

[1 mark]

iii. what is kept the same? _______________________________________________________________

[1 mark]

(c) What is the relationship between the things you stated in (b) i and (b) ii.__________________________________________________________________

[1 mark]

(d) What conclusion can be drawn from the investigation? __________________________________________________________________

[1 mark]

3 The table below shows the change in the temperature of a room from themorning to the afternoon.

Time 8.00 a.m. 10.00 a.m. 12.00 p.m. 2.00 p.m. 4.00 p.m.Temperature (C) 27 30 35 30

(a) What is the trend in the change in the room temperature from the morning to the afternoon?__________________________________________________________________


[1 mark]

(b) Predict the temperature at 4.00 p.m._________________________________________________________________

[1 mark]

(c) Give two reasons for the change in the room temperatures shown in the above table.1. _______________________________________________________________2. _______________________________________________________________

[2 marks]

(d) State the relationship between heat and temperature, based on the results of the investigation.

_________________________________________________________________

[1 mark]

4 The table below shows the results of an investigation.

Distance of the object from the source of light (cm)

Size of the shadow of the object on the screen

5

10

15

(a) State the purpose of the investigation.__________________________________________________________________

[1 mark]

(b) Based on the results of the investigation, state the following.i. What is changed?


________________________________________________________________

[1 mark]ii. What is observed? _______________________________________________________________

[1 mark]

(c) State the relationship between what is changed and what is observed.__________________________________________________________________

[1 mark]

(d) What conclusion can be drawn from the investigation?__________________________________________________________________

[1 mark]

first term science test

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