National Science Olympiad Forum By SOF Olympiad Trainer

Niranjhan Rajeshkumar from Deens Academy, Whitefield, Bengaluru

Subject :NSO Class : Class 2

Select the incorrect option out of the following.

A Gypsies live in temporary houses like a bungalow.
B A stilt house can never be found in hilly areas with snowfall.
C Sloping roofs are found in all permanent houses because they are cheaper to be built.
D All of these

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RADHIKA from xyz, Delhi

Subject :NSO Class : Class 9

I WANT LAST YEAR SOLVED NSO PAPERS FOR OLYMPIAD PLEASE HELP

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AMEYA CHANDRASHEKHAR JOSHI from SRI VANI VIDYA SHALA HIGH SCHOOL , KALYAN

Subject :NSO Class : Class 9

The following numbers are coded as follows:

While coding the given number following conditions are also to be observed.
Conditions :
(i) If the first digit of the number is odd, then it will be coded as @.
(ii) If the last digit of the number is even, then it will be coded as ©.
Find the code of 5 2 4 6 5 7 3 8.

A$* ÷ $+?!
B@* ÷ + $?©
C@* ÷ $+?©
D@ * ÷ +$?!

The symbol given for C option is (.) and in the options this symbol is not there

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Ans 1:

Kartik Agarwal from DPSG, Ghaziabad

Class : Class 9

Option C is Correct Answer

Ans 2:

Eireir from Gghjhg, 34tt

Class : Class 9

Ans 3:

Himanshu from delhi public school, Mahendragarh

Class : Class 9

Ans is C

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Shriyann from Suniti Devi Singhania School, Thane

Subject :NSO Class : Class 6

Three friends played a game.
Garima : My number is the least common multiple of second and third multiple of 3.
Latika : My number is first odd prime number.
Rinki : My number is H.C. F of Latika's & Garima's number.
What is the Rinki's number?

(A) 18
(B) 6
(C) 3
(D) 1

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Alay Shah from Euro School, Thane

Subject :NSO Class : Class 5

How many triangles will be needed to form the 10^th Figure in the given series?

A10
B14
C22
D24

Answer should be 22, option c.

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Ans 1:

Aarna Panjiar from The Shri Ram School, New Delhi

Class : Class 9

Why?

Ans 2:

Ishaan Singh from BBPS, Gurugram

Class : Class 9

Correct answer is C

Ans 3:

Vania Aravindan from Unicent School , Miyapur Hyderabad

Class : Class 8

Hello team, How is it possible?

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Shreyas Singh from Podar International School, Pune

Subject :NSO Class : Class 5

Types of clothes we should wear in summers are

ALight-coloured and tight clothes
BLoose, thin and light-coloured clothes
CThin and dark-coloured clothes
DLoose and thick clothes.

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Ans 1:

AREEN from BOLTON, HYDERABAD

Class : Class 6

Ans is B because when we wear thin clothes in summer, the sunrays will be absorbed and then sweat will come and then sweat will dry and you will feel cool.

Ans 2:

AREEN from BOLTON, HYDERABAD

Class : Class 6

Ans is B because when we wear thin , light-coloured and loose clothes in summer, the sunrays will be absorbed and then sweat will come and then sweat will dry and you will feel cool.

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akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru

Subject :NSO Class : Class 5

What do we call a rapidly rotating mass of water in a river or sea?

ATide
BWave
CCurrent
DWhirlpool

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Ans 1:

Ujjwal Upadhyay from Navy Children school, Vasco

Class : Class 6

D

Ans 2:

Ujjwal Upadhyay from Navy Children school, Vasco

Class : Class 6

D

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Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon

Subject :NSO Class : Class 6

There are many plants growing healthily in a green house. Which of the following factors will affect the amount of oxygen and carbon dioxide in a greenhouse on a sunny day?
(i) Amount of nitrogen gas in the air
(ii) Amount of sunlight received by the plants
(iii) Amount of water vapour in the air
(iv) Number of plants in the greenhouse

A(i) and (iii) only
B(ii), (iii) and (iv) only
C(i), (ii) and (iv) only
DAll of these

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Ans 1:

Arkadeep chakraborty from Atreyee DAV Public School, Balurghat

Class : Class 6

1 no.

Ans 2:

Dushyant Singh from Shree Ram Centenial School, Indore

Class : Class 9

b is the answer

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ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur

Subject :NSO Class : Class 4

Which of the following characteristics is shared by all the animals in the given box?

AThey live in water.
BThey breathe through lungs.
CThey lay eggs.
DThey do not look after their young ones.