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Worksheets

brain boosters

Total questions: 20

Worksheet time: 9mins

Name
Class
Date
1.

Which of the following is used in pencils?

a)

Graphite

b)

Silicon

c)

Charcoal

d)

phosphorus

2.

The gas usually filled in electric bulb is?

a)

Nitogen

b)

Hydrogen

c)

Carbondioxide

d)

Oxygen

3.

Which of the gas is not known as green house gas?

a)

Methane

b)

Nitrous oxide

c)

Carbondioxide

d)

Hydrogen

4.

The hardest substance available on earth is?

a)

Gold

b)

Iron

c)

Diamond

d)

Platinum

5.

The gases used in different types of welding would include?

a)

Oxygen and hydrogen

b)

Oxygen, hydrogen, acetylene,nitrogen

c)

Oxygen, aacetylene, argon

d)

Oxygen and acetylene

6.

Nonstick cooking utensils are made up of?

a)

Teflon

b)

Pvc

c)

Black paint

d)

Polystyrene

7.

Soda water contains?

a)

Carbonic acid

b)

Sulpuric acid

c)

Carbondioxide

d)

Nitrous acid

8.

World Science Day is celebrated on

a)

10th November

b)

15th October

c)

28th February

d)

19th June

9.

Identify this famous Indian Scientist.

a)

Homi J Bhabha

b)

Meghnad Saha

c)

Salim Ali

d)

Vikram Sarabhai

10.

Identify the picture

a)

Orion Constellation

b)

Aries Constellation

c)

Cassiopeia Constellation

d)

Gemini Constellation

11.

Identify the famous personality.

a)

Sunita Williams

b)

Kalpana Chawla

c)

Marie Curie

d)

Aditi Pant

12.

For which discovery, Dr. C.V. Raman won Nobel Prize?

a)

A. Vibrations of Sound

b)

B. Scattering of Light

c)

C. Both A and B

d)

D. Neither A nor B

13.

narender modi attended the annual meeting of world economic forum in davos what is theme of meeting

a)
creating a shared future in fractured world
b)
creting a prosperous future for all
c)
creating future for next generation
d)
enjoy the world
e)
none
14.

Which of the following methods of farming enables farmers to grow different crops on the same land, from time to time?

a)

Crop rotation

b)

Drip irrigation

c)

Crop cultivation

d)

Ploughing

15.

identify the instrument used by Sir.C.V Raman......

a)

Hygrometre

b)

Spectram

c)

Spectrograph

d)

spygomomano metre

16.

What was the theme for National Science Day 2024?

a)

Indigenous Technologies for Viksit Bharat

b)

Integrated Approach in Science and Technology for a Sustainable Future

c)

Scientific Concerns for the Development of the Nation

d)

Scientific Issues for the Development of the Nation

17.

Which colour of Rainbow radiate least?

a)

Red

b)

Blue

c)

Yellow

d)

Green

18.

Which of the following is an example of kinetic energy?

a)

A stationary car

b)

A book placed on the table

c)

A swinging pendulum

d)

Water stored in a dam

19.

What is the name of the communication satellite to be launched by the Indian Space Research Organisation?

a)

GSAT 30

b)

CMS-01

c)

EOS- 01

d)

RISAT 2BR1

20.

In a food chain, what is the primary source of energy?

a)

Consumers

b)

Decomposers

c)

Producers

d)

Carnivores