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TAHAP 4 - SAINS KHAR THINKER

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

The energy needed by our body can be obtained from

Tenaga yang diperlukan oleh badan kita boleh didapati daripada

a)

water

air

b)

protein

protein

c)

vitamin

vitamin

d)

mineral salt

garam mineral

2.

Micheal drives his car for 800 metres in 50 seconds. What is the velocity of the car?

Micheal memandu keretanya sejauh 800 meter dalam masa 50 saat. Berapakah halaju kereta itu?

a)

5 ms-1

b)

10 ms-1

c)

16 ms-1

d)

40 ms-1

3.

What is the nearest planet to the sun?

Apakah planet yang terdekat dengan matahari?

a)

Earth

Bumi

b)

Mars

Marikh

c)

Mercury

Utarid

d)

Venus

Zuhrah

4.

Which of the following is the effect of nutrient deficieny?

Antara berikut yang manakah kesan kekurangan nutrient?

a)

Obesity

Obesiti

b)

Atherosclerosis

Atherosklerosis

c)

Diabetis mellitus

Diabetis mellitus

d)

Osteoporosis

Osteoporosis

5.

Which of the following is needed during the light reaction of photosynthesis?

Antara yang berikut, yang manakah diperlukan semasa peringkat tindakbalas cahaya fotosintesis?

a)

ATP

ATP

b)

Water

Air

c)

Hyrdogen atom

Atom Hidrogen

d)

Carbon dioxide

Karbon dioksida

6.

Human dan chimpanzees share roughly how much DNA?

Manusia dan cimpanzi berkongsi kira-kira berapa banyak DNA?

a)

90%

b)

80%

c)

98%

d)

79%

7.

Which of the following is an organic compound?

Antara yang berikut, yang manakah sebatian tak organik?

a)

Sugar

Gula

b)

Palm oil

Minyak kelapa sawit

c)

Coal

Arang batu

d)

Marble

Marmar

8.

Which type of carbohydrate is found in abudance in liver?

Apakah jenis karbohidrat yang banyak dijumpai dalam hati?

a)

Starch

Kanji

b)

Sucrose

Sukrosa

c)

Glucose

Glukosa

d)

Glycogen

Glikogen

9.

Where can you find the smallest bone in the human body?

Dimanakah anda boleh temui tulang terkecil di dalam tubuh manusia?

a)

Middle ear

Tulang telinga

b)

Thigh

Paha

c)

Arm

Lengan

d)

Leg

Kaki

10.

How many vertebrae does the average human possess?

Berapa banyak tulang belakang yang dimiliki oleh rata-rata manusia?

a)

35

b)

33

c)

40

d)

28

11.

Which of the following is not the property of an acid?

Antara berikut yang manakah bukan sifat satu asid?

a)

It conducts electricity

Mengkonduksikan elektrik

b)

It turns red litmus paper to blue

Menukarkan kertas litmus merah kepada biru

c)

It dissolve in water to produce hydrogen ion

Larut dalam air menghasilkan ion hidrogen

d)

It reacts with alkali to produce salt and water

Bertindak balas dengan alkali untuk menghasilkan garam dan air

12.

Which of the following is the most suitable method to dispose non-biodegradable plastic?

Antara berikut, yang manakah kaedah paling sesuai untuk melupuskan plastik yang tidak terbiodegradasi?

a)

Bury them underground

Menanam di bawah tanah

b)

Thrown them into the sea

Buang ke dalam laut

c)

Open burning

Membakar secara terbuka

d)

Burn plastic in incinerator

Bakar plastik dalam incinerator

13.

The average salinity of sea water is

Rata-rata kemasinan air laut adalah

a)

3%

b)

3.5%

c)

2.5%

d)

2%

14.

What type of battery is used in a handphone?

Apakah jenis bateri yang digunakan dalam telefon bimbit?

a)

Alkaline battery

Bateri alkali

b)

Acid – lead battery

Bateri asid – plumbum

c)

Nickel – cadmium battery

Bateri nikel – cadmium

d)

Siver oxide battery

Bateri argentum oksida

15.

Deficiency of vitamin D in the diet of an individual can lead to?

Kekurangan vitamin D dalam gizi seseorang boleh menyebabkan

a)

Goitre

Goiter

b)

Scurvy

Skurvi

c)

Rickets

Riket

d)

Anaemia

Anemia

16.

What types of radiation can pass through the sheet of paper but cannot pass through an aluminium sheet?

Apakah jenis sinaran yang boleh melalui kepingan kertas tetapi tidak dapat melalui sekeping aluminium?

a)

Alpha

Alfa

b)

X-ray

Sinar-X

c)

Beta

Beta

d)

Gamma

Gama

17.

Who was the scientist to propose the three laws of motion?

Siapakah saintis yang mengusulkan tiga hukum pergerakan?

a)

Isaac Newton

b)

Albert Einstein

c)

Johannes Gutenberg

d)

Christopher Columbus

18.

Diabetes develops as the result of a problem with which specific organ in the body?

Diabetes berkembang akibat masalah dengan organ tertentu di dalam badan?

a)

Abdomen

Perut

b)

Heart

Jantung

c)

Liver

Hati

d)

Pancreas

Pankreas

19.

How long does a human red blood cell survive?

Berapa lama sel darah merah manusia dapat bertahan?

a)

120 days

120 hari

b)

100 days

100 hari

c)

150 days

150 hari

d)

102 days

102 hari

20.

How many heart does an octopus have?

Berapakah jumlah jantung yang ada pada sotong?

a)

1

b)

5

c)

3

d)

2