National Science Olympiad Forum By SOF Olympiad Trainer - Page 544
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AARNA Kapse from The swaminarayan school, Nagpur
Subject :NSO    Class : Class 2

Ans 1:

Advik from Ryan international school Sanpada Navi Mumbai , Navi mumbai
Class : Class 4
the correct answer is c because skating cycling and cricket

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Answer is Swimming. Helmet is available in the grid and is a safety tool in Cycling, Cricket and Skating.

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Answer is Swimming. Helmet is available in the grid and is a safety tool in Cycling, Cricket and Skating.

Ans 4:

Advik from Ryan international school Sanpada Navi Mumbai , Navi mumbai
Class : Class 4

Ans 5:

Ipshita from VIBGYOR, Bengaluru
Class : Class 1
The correct answer is swimming because the safety tool used in swimming is not located on the grid above.

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AARNA Kapse from The swaminarayan school, Nagpur
Subject :NSO    Class : Class 2

Ans 1:

anu from Haralur, Bengaluru
Class : Class 4
D = woollend

Ans 2:

Devansh Agrawal from GEMS Modern Academy, Dubai
Class : Class 4
D

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Woollen fibres entrap air to keep us warm and burn with the smell of burning hair because they are made from hair of animals like sheep, etc.

Ans 4:

adwik asutosh mallick from DONBOSCO, KOLKATA
Class : Class 5
D

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Shreyas Bibhuty from D A V Public school thane, Mumbai
Subject :NSO    Class : Class 9

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Sarim raza from St Xavier, Hzaribagh Jharkhand
Subject :NSO    Class : Class 6

Ans 1:

Sarim raza from St Xavier, Hzaribagh Jharkhand
Class : Class 6
Answer is A. Walnut is rich in Omega 3 because it help us to develop our brain espically kids.

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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Sujal Kumar from Dav public school barhi, ranchi
Class : Class 7
Ans=y Because the small intestine help to more digested

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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Adish Gupta from Podar international school , Mumbai
Class : Class 7

Ans 2:

Shaurya from Mris 51 Gurugram, Gurugram
Class : Class 7

Ans 3:

Himanish Basu from Army Public School Kamaraj Road, Bangalore
Class : Class 7

Ans 4:

Adish Gupta from Podar international school , Mumbai
Class : Class 7

Ans 5:

sukdidi12 from loreto day school elliot road , kolkata
Class : Class 5
Option A

Ans 6:

Can I get Rank 35 darryl from Global Indian international school, Brawl stars
Class : Class 8

Ans 7:

Anidhya from St.Mary's Convent School , Ghaziabad
Class : Class 7

Ans 8:

ansh rai from delhi public school, Bhilai
Class : Class 4
Option a is correct but disaccharides aren’t enzymes

Ans 9:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
answer A is correct

Ans 10:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option a

Ans 11:

Adish Gupta from Podar international school , Mumbai
Class : Class 7

Ans 12:

Bhargav from City Pride School, Nigdi
Class : Class 7
Option a is correct

Ans 13:

Devavrat Sharma from Podar International School Powai, Mumbai
Class : Class 7

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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

The given list shows the five steps needed to do a starch test but in a random order.
(i) Pluck a leaf from the plant.
(ii) Leave a potted plant out in the Sun for a few hours.
(iii) Boil the leaf in alcohol.
(iv) Put the leaf in boiling water for 2 minutes.
(v) Wash the leaf and then add a few drops of iodine solution over it.
Select the option with correct order of these steps.

A (i), (ii), (iii), (iv), (v)
B (i), (ii), (iv), (iii), (v)
C (ii), (i), (v), (iv), (iii)
D (ii), (i), (iv), (iii), (v)


Ans 1:

Hritvi from Podar International School, Mumbai
Class : Class 7
Correct Answer- D

Ans 2:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option d

Ans 3:

Abhiroop Batabyal from Kennedy High the global school, Hyderabad
Class : Class 8
Option D : (ii), (i), (iv), (iii), (v)

Ans 4:

Ronav Kerkar from Jamnabai Narsee School, Mumbai
Class : Class 7
why not d

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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Thomas from ,
Class : Class 7
Explain please

Ans 2:

Shreyansh Gupta from MVN, faridabad
Class : Class 5

Ans 3:

shaurya aggarwal from scholars rosary senior secondary school, rohtak
Class : Class 9
difficult

Ans 4:

somesh from Centre point katol road, Nagpur
Class : Class 6
Ans should be a

Ans 5:

TEJASWANI from TIME SCHOOL, HYDERABAD
Class : Class 7
stupid

Ans 6:

Devavrat Sharma from Podar International School Powai, Mumbai
Class : Class 7
explaination please

Ans 7:

Ishaan Roy from Sri Chaitanya Techno School, Bengaluru
Class : Class 10

Ans 8:

somesh from Centre point katol road, Nagpur
Class : Class 6

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aryan vir from lotusvalley international school gurugram, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

ansh rai from delhi public school, Bhilai
Class : Class 4
Answer is a not d

Ans 2:

Basundhara Ghosh from Birla High School Mukundapur , Kolkata
Class : Class 7
Answer is B not D

Ans 3:

Hprakash09 from Billabong high Bhopal, Bhopal
Class : Class 7
the answer is (A) and not (D)

Ans 4:

Aarushi Chaubey from Teoler High School, Jaipur
Class : Class 8
the answer (a) not (d)

Ans 5:

Vihaan Agrawal from Lotus Valley International School, Gurgaon
Class : Class 7
it can also be B

Ans 6:

Midhuna from ABCD, Banglore
Class : Class 3
find incorrect option not correct

Ans 7:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
They have asked incorrect. Even I went wrong here

Ans 8:

IAMLOST from ABC, Pune
Class : Class 8

Ans 9:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
The answer is A and not D since the terminals of the battery are not connected in a proper way.

Ans 10:

ALICE from Delhi Public School, UDAIPUR
Class : Class 8
The answer should be 'B'

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Swarnavo from Reso, Kota
Subject :NSO    Class : Class 7

Ans 1:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
OPTION C IS CORRECT ANSWER.

Ans 2:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option c

Ans 3:

Soumyajit Roy from Delhi Public School Jamnagar, Jamnagar
Class : Class 9

Ans 4:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
A

Ans 5:

Bhumi Chheda from SVKM J V Parekh International School, Mumbai
Class : Class 9
i am not sure if it is A or C

Ans 6:

shashwat pandey from Doon International School Dalanwala, Dehradun
Class : Class 8
In my opinoin A is corrcect beacuse silvered wall is a solid thing and solid thing get's heat through the process of conduction.

Ans 7:

Anagha s Karnis from vijaya vittala vidyashala, MYSORE
Class : Class 8
Option c is the correct answer, because if at all any cold material is stored in the flask, then the liquid becomes hot due to the heat of the sun. Hence it is used to reflect the radiation from the sun

Ans 8:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
A is the correct answer

Ans 9:

Hritvi from Podar International School, Mumbai
Class : Class 7
Option C is the correct answer as the silvered walls of the thermo flask helps the liquid to sustain its form by reflecting the heat by Radiation (Heat that does not need any medium to travel unlike conduction and convection.)

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