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Science Quiz Vigyan Sanjeevini

Total questions: 50

Worksheet time: 25mins

Name
Class
Date
1.

Which one of the steps while burning a candle is not reversible?

a)

Melting of solid wax

b)

liquid wax changes into vapours

c)

Wax vapour bums into flame

d)

All of these

2.

Which of the following is a chemical change?

a)

Evaporation of water

b)

Burning of fuels

c)

Moving of a wheel

d)

Breaking of a brick

3.

A freely suspended bar magnet rests in

a)

north-south directions

b)

east-west directions

c)

upside down

d)

any direction by chance

4.

The magnetic properties of a magnet will not be affected by

a)

hammering

b)

heating

c)

dropping from height on hard surface

d)

boiling

5.

Wind is

a)

air around us

b)

rising hot air

c)

air in motion

d)

none of these

6.

Which is not a property of air?

a)

It occupies space.

b)

It has weight.

c)

It is a solution.

d)

It is a compound.

7.

An example of a conductor is

a)

tap water

b)

salt solution

c)

metal wire

d)

all of these

8.

Bulb glows only in

a)

closed circuit

b)

open circuit

c)

in both circuits

d)

open circuit if bulb is not fused

9.

What is the SI unit of length?

a)

Metre

b)

Centimetre

c)

Kilometre

d)

All of these

10.

Which is an example of a periodic motion?

a)

Oscillation of a pendulum

b)

Motion of a bus on road

c)

A spinning top

d)

A stone dropped from a certain height

11.

Which is an example of a translucent object?

a)

A thin sheet of paper

b)

A thin glass slab

c)

A thin iron sheet

d)

All of these

12.

When an opaque object comes in the path of light it forms

a)

an image with colours

b)

shadow

c)

black and white image

d)

depends on the colour of the light

13.

Butter is separated from milk by

a)

sedimentation

b)

filtration

c)

churning

d)

decantation

14.

The property which forms the basis of sieving

a)

difference in weight

b)

difference in colour

c)

difference in shape

d)

difference in size

15.

Which one of the following is not soluble in water?

a)

Turmeric powder

b)

Common salt

c)

Alum

d)

All are soluble

16.

Which one will show a metallic lustre?

a)

Any surface of a metal

b)

Freshly cut surface of a metal

c)

Freshly cut surface of non-metal

d)

Surfaces of all materials

17.

Out of these gases which one is used in fire extinguishers

a)

CO2

b)

SO2

c)

NO2

d)

H2S

18.

Products of a neutralisation reaction are always

a)

an acid and a base

b)

an acid and a salt

c)

a salt and water

d)

a salt and a base

19.

On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution?

a)

Basic

b)

Either acidic or basic

c)

Either acidic or neutral

d)

Either basic or neutral

20.

Which one is filled in the bulb of a thermometer?

a)

Mercury

b)

Lead

c)

Copper

d)

Silver

21.

Heat from the sun reaches to us by

a)

radiation

b)

conduction

c)

convection

d)

all of these

22.

“Every Drop Counts” is a slogan related to

a)

counting of drops of any liquid

b)

counting of water drops

c)

importance of water

d)

importance of counting

23.

Water cycle does not involve which of the following?

a)

Evaporation

b)

Condensation

c)

Formation of clouds

d)

Rainwater harvesting

24.

Materials having qualities of both metals and non-metals are

a)

alloys

b)

metalloids

c)

noble metals

d)

none of these

25.

The metal which is liquid at room temperature is

a)

sodium

b)

bromine

c)

calcium

d)

mercury

26.

A mineral from which. a metal can be extracted on the commercial scale, economically is called

a)

ore

b)

metalloid

c)

corrosion

d)

metal

27.

Friction is a

a)

non-contact force

b)

contact force

c)

magnetic force

d)

electrostatic force

28.

A toy car released with the same initial speed will travel farthest on

a)

muddy surface

b)

polished marble surface

c)

cemented surface

d)

brick surface

29.

Force changes the

a)

motion of body

b)

speed of body

c)

shape of body

d)

all of these

30.

Pressure =

a)

Area / force on which it acts

b)

force / area on which it acts

c)

Volume / force on which it acts

d)

Force / volume on which it acts

31.

Insulin is released in

a)

Liver

b)

Pancreas

c)

Pituary

d)

Parathyroid

32.

Which gas is most abundant in the sun?

a)

Helium

b)

Hydrogen

c)

Nitrogen

d)

Ozone

33.

Which of following is essential for blood clotting?

a)

RBC

b)

WBC

c)

Platelets

d)

Lymph

34.

Drugs used for relieving pain are called

a)

Anti-pyretic

b)

Analgesic

c)

Tranquilizer

d)

None of these

35.

What is normal blood pressure of the human beings

a)

120/80 mmHg

b)

120/90 mmHg

c)

210/80 mmHg

d)

150/80 mmHg

36.

Which of these are water soluble vitamins

a)

A, B and C

b)

B and C

c)

A,C and D

d)

B,C, and D

37.

BCG vaccination is done to get immunity from

a)

Polio

b)

Cholera

c)

Tuberculosis

d)

Small pox

38.

One horse power is equal to

a)

746 watts

b)

716 watts

c)

720 watts

d)

1000 watts

39.

What is the limit of sound intensity (in dB) beyond which it start becoming unbearable for a person

a)

50 dB

b)

75 dB

c)

85 dB

d)

140 dB

40.

Which of following is a universal blood donor

a)

O negative

b)

AB positive

c)

AB negative

d)

B negative

41.

Total number of chromosomes in men is

a)

33

b)

46

c)

23

d)

44

42.

During photosynthesis, green plant use energy from sunlight to synthesize __________ from CO2 and H2O.

a)

Fructose

b)

Maltose

c)

Glucose

d)

Sucrose

43.

Which of following gases reduces the oxygen carrying capacity of blood

a)

CO2

b)

CO

c)

NO

d)

NO2

44.

Which of following test is used to identify COVID-19 infection

a)

ELISA

b)

RT-PCR

c)

GFR test

d)

None of above

45.

Name of the respiratory orgrans of insects is

a)

Skin

b)

Body surface

c)

Gills

d)

Trachae

46.

Energy release during cellular respiration is stored in

a)

Lungs

b)

ATP

c)

Illium

d)

glucose

47.

Which type of radiation is the least penetrating?

a)

Alpha

b)

Beta

c)

Gamma

d)

Neutron

48.

When 59Cu undergoes positron emission, what is the immediate nuclear product?

a)

59Ni

b)

58Ni

c)

58Cu

d)

59Cu

49.

Non-stick cookware coating is made from

a)

Chlorofluoro Carbon

b)

Tetrafluoroethene

c)

Polyurethane

d)

Venyl Chloride

50.

Vitamin C is

a)

Citric Acid

b)

Acetic Acid

c)

Ascorbic Acid

d)

Oxalic Acid

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