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SCIENTIFIC QUIZ

Total questions: 50

Worksheet time: 17mins

Name
Class
Date
1.

The hardest substance found in human body?

a)

Bone

b)

Tooth enamel

c)

Nail

d)

Cartilage

2.

The SI unit of current is?

a)

Volt

b)

Ampere

c)

Ohm

d)

Watt

3.

Gas used in photosynthesis?

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

d)

Hydrogen

4.

Which planet is known as the Red Planet?

a)

Venus

b)

Mars

c)

Mercury

d)

Jupiter

5.

Blood groups were discovered by?

a)

Robert Koch

b)

Karl Landsteiner

c)

Pasteur

d)

Jenner

6.

Electric bulb filament is made of?

a)

Copper

b)

Tungsten

c)

Aluminium

d)

Iron

7.

Ozone protects us from?

a)

Radio waves

b)

UV rays

c)

Visible light

d)

Infrared

8.

The gas used for respiration by aquatic animals?

a)

CO2

b)

O2 dissolved in water

c)

Nitrogen

d)

Helium

9.

Which vitamin is produced in our body by sunlight?

a)

A

b)

D

c)

E

d)

C

10.

The green pigment in plants?

a)

Chlorophyll

b)

Carotene

c)

Anthocyanin

d)

Xanthophyll

11.

The purest form of water is?

a)

Tap water

b)

Rainwater

c)

Sea water

d)

River water

12.

Human heart has how many chambers?

a)

2

b)

3

c)

4

d)

5

13.

Which organ purifies blood?

a)

Heart

b)

Kidney

c)

Lungs

d)

Brain

14.

The study of fossils is called?

a)

Ecology

b)

Paleontology

c)

Anthropology

d)

Archaeology

15.

Which planet has the largest number of moons?

a)

Saturn

b)

Jupiter

c)

Neptune

d)

Uranus

16.

Which blood group is universal donor?

a)

AB+

b)

O-

c)

O+

d)

AB-

17.

First metal used by humans?

a)

Iron

b)

Copper

c)

Aluminium

d)

Gold

18.

The gas used to extinguish fire?

a)

Oxygen

b)

Carbon dioxide

c)

Nitrogen

d)

Steam

19.

Newton’s Third Law is also called?

a)

Law of gravitation

b)

Action–Reaction Law

c)

Inertia

d)

Work law

20.

Which instrument measures atmospheric pressure?

a)

Barometer

b)

Thermometer

c)

Hygrometer

d)

Anemometer

21.

Water boils at 100°C at which pressure?

a)

Vacuum

b)

1 atm

c)

2 atm

d)

0.5 atm

22.

Rusting of iron is a type of?

a)

Physical change

b)

Chemical change

c)

Both

d)

None

23.

Which part of cell is called “Powerhouse”?

a)

Nucleus

b)

Mitochondria

c)

Chloroplast

d)

Ribosome

24.

Who discovered X-rays?

a)

Röntgen

b)

Becquerel

c)

Curie

d)

Thomson

25.

pH of neutral solution at 25°C is?

a)

1

b)

7

c)

14

d)

10

26.

Which is not a renewable energy source?

a)

Coal

b)

Solar

c)

Wind

d)

Water

27.

Plant that traps insects?

a)

Mango

b)

Venus flytrap

c)

Banana

d)

Tulip

28.

First artificial satellite launched by USSR?

a)

Apollo

b)

Sputnik 1

c)

Aryabhata

d)

Voyager

29.

Which metal is liquid at room temperature?

a)

Sodium

b)

Mercury

c)

Zinc

d)

Aluminium

30.

Smallest bone in human body?

a)

Stapes

b)

Femur

c)

Tibia

d)

Ulna

31.

Which vitamin deficiency causes scurvy?

a)

A

b)

B12

c)

C

d)

D

32.

The speed of light in vacuum?

a)

3 × 10⁸ m/s

b)

1.5 × 10⁸

c)

3 × 10⁶

d)

3 × 10⁵

33.

Which gas is known as laughing gas?

a)

N₂

b)

N₂O

c)

O₂

d)

NO₂

34.

SI unit of power?

a)

Watt

b)

Joule

c)

Newton

d)

Pascal

35.

The first Indian satellite?

a)

INSAT

b)

Aryabhata

c)

GSAT

d)

PSLV

36.

Nobel Prize is not given in which subject?

a)

Physics

b)

Chemistry

c)

Mathematics

d)

Medicine

37.

Einstein got Nobel Prize for?

a)

Theory of Relativity

b)

Photoelectric Effect

c)

Atomic Theory

d)

E = mc²

38.

Sound cannot travel through?

a)

Solid

b)

Liquid

c)

Gas

d)

Vacuum

39.

Disease caused by deficiency of iodine?

a)

Rickets

b)

Goitre

c)

Scurvy

d)

Night blindness

40.

The acid present in lemon?

a)

Citric acid

b)

Acetic acid

c)

Lactic acid

d)

Oxalic acid

41.

Which phenomenon makes the sun look reddish during sunrise and sunset?

a)

Reflection

b)

Refraction

c)

Dispersion

d)

Scattering of light

42.

Instrument to measure earthquake waves?

a)

Barometer

b)

Seismograph

c)

Hygrometer

d)

Ammeter

43.

Which planet is called the "morning star" as well as the "evening star"?

a)

Mercury

b)

Venus

c)

Mars

d)

Jupiter

44.

Which part of the brain controls balance?

a)

Cerebrum

b)

Cerebellum

c)

Medulla

d)

Hypothalamus

45.

First woman to win Nobel Prize in Physics?

a)

Marie Curie

b)

Rosalind Franklin

c)

Dorothy Hodgkin

d)

Lise Meitner

46.

Who gave the “Periodic Law”?

a)

Mendeleev

b)

Dalton

c)

Bohr

d)

Rutherford

47.

Which law explains the relationship of pressure, volume & temperature for gases?

a)

Ideal Gas Law

b)

Boyle’s

c)

Charles’

d)

Avogadro’s

48.

Which scientist coined the word “cell”?

a)

Robert Hooke

b)

Leeuwenhoek

c)

Schleiden

d)

Virchow

49.

Which chemical is used in DNA fingerprinting?

a)

Ethidium Bromide

b)

Copper sulphate

c)

Acetic acid

d)

Potassium permanganate

50.

India’s first nuclear test (Smiling Buddha) was conducted in which year?

a)

1974

b)

1962

c)

1998

d)

1984

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