National Science Olympiad Forum By SOF Olympiad Trainer

Avneet Kaur from Satpaul Mittal School , Ludhiana

Subject :NSO Class : Class 3

Each letter in the figure is connected to another letter by a straight line. In how many different ways can you form the word 'TIGER'?

A4
B5
C6
D7

Ans 1:

Akshi Roychoudhury from Sushila birla girls school, Kolkata

Class : Class 2

Ans 2:

Avneet Kaur from Satpaul Mittal School , Ludhiana

Class : Class 3

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SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon

Subject :NSO Class : Class 7

Observe the given figure. What do you conclude from this?

A Reduced air pressure can lift objects.
B High wind speed reduces air pressure.
C Air expands on heating.
D Atmospheric pressure increases with a decrease in temperature.

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Prisha bhuyan from Chirec international school, Hyderabad

Subject :NSO Class : Class 1

Refer to the given diagram.

Select the option that correctly represents articles P and Q.

	P	Q
A	Umbrella	Woollen gloves
B	Goggles	Raincoat
C	Umbrella	Leather boots
D	Leather jacket	Woollen cap

Why is leather boots there it should be rubber boots

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Prasanna Hegde from Vibgyor High Horomavu, BENGALURU

Subject :NSO Class : Class 3

Arpita observed the shape of the Moon every night. On 2^nd September she noted on the calendar : Day 1, New Moon. When is she most likely to observe Half Moon and Full Moon?

A8^th Sept. and 29^th Sept. respectively
B7^th Sept. and 28^th Sept. respectively
C15^th Sept. and 22^nd Sept. respectively
D8^th Sept. and 15^th Sept. respectively

D

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Ans 1:

Vidit Kishore from Johnson Grammar School, Hyderabad

Class : Class 4

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Anagha from DPS BANGALORE NORTH, Bengaluru

Subject :NSO Class : Class 3

The given picture shows the beak of a bird. Which of the following is most likely the food of this bird?

AFish
BGrains
CNectar
DNuts

it should be be Fish

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Ans 1:

Gaurika Bhasin from Genesis global school, Noida

Class : Class 2

Nectar or fish

Ans 2:

Anagha from DPS BANGALORE NORTH, Bengaluru

Class : Class 3

Ans 3:

Aryaman Sinha from Hill Top School , Jamshedpur

Class : Class 3

Nectar

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Jagadarsh Meda from Sri Vidyanjali, Hyderabad

Subject :NSO Class : Class 8

When we use biomass to generate electricity the conversion of energy is from ____.

AChemical to electrical energy
BKinetic to electrical energy
CNuclear to electrical energy
DMuscular to electrical energy

A is the answer

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Aishi Banik from S B G S Kolkata, Kolkata

Subject :NSO Class : Class 3

Select the activity which requires a force different from the other three activities.

ASpinning a coin
BTurning the door knob
CFitting a screw into the board
DPumping air into a football

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Risha Jakhotiya from Sanskriti School , Pune

Subject :NSO Class : Class 5

Which of the following does not belong to the group of communicable diseases?

ATyphoid and malaria
BMumps and chicken pox
CScurvy and anaemia
DCholera and jaundice

Answer should be right?

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Ans 1:

Hitanshi Behera from Loyola School , Bhubaneswar

Class : Class 4

lalalalalalalalallalallalalalalalalalalala

Ans 2:

Hitanshi Behera from Loyola School , Bhubaneswar

Class : Class 4

saa ree gaa maa paa dha nii saa

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anirudh jain from delhi public school rohini, DELHI

Subject :NSO Class : Class 9

Read the given statements and select the correct option.
Statement 1 : If a light body and a heavy body possess the same momentum, the lighter body will possess more kinetic energy.
Statement 2 : The kinetic energy of a body varies as the square of its velocity.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true but statement 2 is false.
D Both statements 1 and 2 are false.

it should be A

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SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon

Subject :NSO Class : Class 7

The ash which is collected after burning of magnesium ribbon is dissolved in water to give a solution X. What is the nature of the solution X when it is tested with indicators?

A It turns blue litmus red and phenolphthalein pink, hence it is an acidic solution.
B It turns red litmus blue and phenolphthalein pink, hence it is a basic solution.
C It turns blue litmus red and gives no colour with phenolphthalein, hence it is an acidic solution.
D It does not change colour of red or blue litmus and phenolphthalein, hence it is a neutral solution.

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Ans 1:

Sourasis kundu from St.agnes higher secondary School, Kharagpur

Class : Class 6

Ans 2:

Sourasis kundu from St.agnes higher secondary School, Kharagpur

Class : Class 6

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