National Science Olympiad Forum By SOF Olympiad Trainer - Page 594
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Shaurya Suryawanshi from The Orbis school, Pune
Subject :NSO    Class : Class 4

Ans 1:

Ashwak from Cambridge, Jalandhar
Class : Class 9
C

Ans 2:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
C is fax which is type of visual communication

Ans 3:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
Explain

Ans 4:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 9
explain

Ans 5:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 9
C

Ans 6:

RAGHAV VARSHNEY from CITY MONTESSORI SCHOOL GOMTINAGAR LUCKNOW, Lucknow
Class : Class 7

Ans 7:

Syon from Sentia The Global School, Hyderabad
Class : Class 8

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Shaurya Suryawanshi from The Orbis school, Pune
Subject :NSO    Class : Class 4

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DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Subject :NSO    Class : Class 5

Ans 1:

Tasneem from FAIPS, kuwait
Class : Class 6
c

Ans 2:

SIDDHARTH KUMAR CHATTERJEE from NAVY CHILDREN SCHOOL , CHICALIM
Class : Class 7

Ans 3:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
I am bengali , hindi , english and malayalam . This looks pity to me !!!!!!!!!!!!!!!!!!!

Ans 4:

Sharv Gupte from VIBGYOR HIGH NIBM, Pune
Class : Class 5

Ans 5:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 6:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 7:

Pratik Gupta from MPS, Abu Dhabi
Class : Class 5

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vedant khatri from G D Goenka Public School Bareilly, bareilly
Subject :NSO    Class : Class 8

Ans 1:

anwesha from v s n, midnapore
Class : Class 10
DIt reflects the red colour and absorbs rest of the colours.

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Soorya Tej R from Delhi Public School, Hyderabad
Subject :NSO    Class : Class 3

Ans 1:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8

Ans 2:

Siddhant Sahay from Ryan , Mumbai
Class : Class 3
Correct answer is D

Ans 3:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
d

Ans 4:

Anargha Nandi from Bishop Morrow School, Krishnagar
Class : Class 6
You are right. It should be D.

Ans 5:

Adrita Dey from Bishop Morrow School , Krishnanagar
Class : Class 3
I think you are right it should be D.

Ans 6:

ALICE from Delhi Public School, UDAIPUR
Class : Class 9
You are wrong.The correct answer should be D.

Ans 7:

ALICE from Delhi Public School, UDAIPUR
Class : Class 9
the correct is D.

Ans 8:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
d is the answer

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Saransh Agrawal from Meridian School, Hyderabad
Subject :NSO    Class : Class 5

Ans 1:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 9
The correct answer is A because Bituminous is not a ore, typhoid is a water-borne disease and rest are vector-borne disease and nutcracker is an example of 2nd class lever whereas all the other are 1st class lever.

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is A because bituminous is not an ore, typhoid is not a vector-borne disease and nutcracker is not a class 1 lever.

Ans 3:

SANVI ROHILLA from The little shri, Rohtak
Class : Class 5
I agree Areen

Ans 4:

SANVI ROHILLA from The little shri, Rohtak
Class : Class 5

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Aniket Ghosh from DAV Public School Haldia, Haldia
Subject :NSO    Class : Class 6

Ans 1:

Saanvi from rvk, bengaluru
Class : Class 9
the answer is b . this is because sun tan is temporary.

Ans 2:

Manvi Mundepi from Montfort School Roorkee, Roorkee
Class : Class 9
answer is b

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Kaustubh Doval from Mirambika Free Progress , Delhi
Subject :NSO    Class : Class 8

Ans 1:

A Venkata Sai Pranav from Podar International School, Bhusawal
Class : Class 9
How can Nylon burn with the smell of burning hair??

Ans 2:

Nimish shah from Chrysalis high , Banglore
Class : Class 8
Correct answer is A

Ans 3:

Anshuman D from MVM, Hyderabad
Class : Class 9
Supposed to be D

Ans 4:

Bhuvan vinod from Sentia The Global School, Hyderabad
Class : Class 9
IT must be D! Nylon does not burn with the smell of burning hair as it is purely synthetic and has no relation to the protein based hair.

Ans 5:

Abhinav Aggarwal from delhi public school, ghaziabad
Class : Class 8
wool burns with smell of burning hair

Ans 6:

Pushkar Sonnekar from Ryan International School, Mumbai, Vasai East
Class : Class 8
It should be D. Because nylon would never once burn with smell of paper in it's entire career. SOF, you gotta chnage the answer man.

Ans 7:

Antarik Maity from Bharatiya Vidyabhaban, Kolkata
Class : Class 8
Nylon should neither have a smell of burning hair nor the smell of burning paper. Nylon has a celery or plastic-like cell. Hence the correct answer is D. But on the other hand when acrylic burns, it shrinks and converts into black beads. On this contrast, the correct answer will be B with respect to acrylic and D with respect to Nylon. There is definitely an error in the options of the answers!

Ans 8:

S V Harini from Vailankanni public school , Krishnagiri
Class : Class 8
How is this possible Nylon burns with smell of hair???

Ans 9:

cherry from atomic energy central school-4, mumbai
Class : Class 9
yes the answer is D. nylon burns with a smell of celery because its a synthetic fibre.

Ans 10:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
wrong answerthe answer should be B

Ans 11:

SAIRAM from TRIVENI TALENT SCHOOL, HYDERBAD
Class : Class 10

Ans 12:

Karmanya Gupta from DPS, Udaipur
Class : Class 8
IT SHOU BE D!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 13:

arnav raj sharma from gulibulium school, new york
Class : Class 8
(D)

Ans 14:

Akshara from NPS, Bengaluru
Class : Class 8
Nylon does not have the smell of burning hair. So the answer should be d.

Ans 15:

ARNAB MANDAL from NAVY CHILDREN SCHOOL, VIZAG
Class : Class 9
nylon burns with a smell of plastic, not burning hair. WTF?

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from , Kolkata
Subject :NSO    Class : Class 8

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Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Subject :NSO    Class : Class 4

Ans 1:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9

Ans 2:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9

Ans 3:

Medha Bijjaram from Prime Academy, Mumbai
Class : Class 9

Ans 4:

Samaira from Global Indian International School, Bangalore
Class : Class 8
I think c

Ans 5:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4
There is no explanation for the answer. How do we understand sof?

Ans 6:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
there is air friction against gravity. so answer is B

Ans 7:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4

Ans 8:

Ishan Kapilbhai Barochiya from Mayoor Private School , Abu Dhabi
Class : Class 8
Yea, pls explain this question to us SOF admin

Ans 9:

Annlisa Castlia from BPS, HYD
Class : Class 5
But they are telling that the right answer is option d

Ans 10:

Ishan Manjith from Loyola ICSE, THIRUVANANTHAPURAM
Class : Class 4
@ishi gupta i know this is irrevelent but its not sob its sof

Ans 11:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4

Ans 12:

Nihid Binoj from DPS International School Singapore, Singapore
Class : Class 4
qwertyuiopasdfghjklzxcvbnm,.-/:;(â1

Ans 13:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4
THERE IS NO SOLUTION SOB HOW CAN WE UNDERSTAND

Ans 14:

om from jbcn, MUMBAI
Class : Class 4

Ans 15:

Aditya Rai from Kv No.1 Icchanath, Surat
Class : Class 8
There is no explanation for the answer. How do we understand sof?

Ans 16:

Ayushi from DPS Noida, Noida
Class : Class 4
Air always act as Frictional force against Gravity Hence ans is B in this case

Ans 17:

Sreejani Bhaduri from National Public School, Bangalore
Class : Class 10
Kqwertyuiopasdfghjklzxcvbnm,.-/:;(₹

Ans 18:

Aditya Rai from Kv No.1 Icchanath, Surat
Class : Class 8
There is no explanation for the answer. How do we understand Sof?

Ans 19:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4

Ans 20:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 4
qwertyuiopasdfghjkkklzxcvbnm

Ans 21:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8

Ans 22:

ALICE from Delhi Public School, UDAIPUR
Class : Class 9

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