National Science Olympiad Forum By SOF Olympiad Trainer - Page 674
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Sumit G from Greenwood High International, Bengaluru
Subject :NSO    Class : Class 6

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RONIK PATRA from RAHUL INTERNATIONAL SCHOOL, PALGHAR MUMBAI
Subject :NSO    Class : Class 3

Ans 1:

Kashika Goel from DPS Noida, Noida
Class : Class 7

Ans 2:

Nirvi Pal from jasudben ML School, mumbai
Class : Class 5

Ans 3:

MAYANK from Jain Public School, REWARI
Class : Class 9
d

Ans 4:

Shruti from ,
Class : Class 1
it is right Soumyajit

Ans 5:

AARAVPRADEEP SAHU from PADMASESHADRI BALBHAVAN SENIOR SECONDARY SCHOOL, CHENNAI
Class : Class 3
corrwct yeeeee!!

Ans 6:

Pankaj Rajput from RBK GLOBAL SCHOOL, THANE
Class : Class 4
NOOOOOOOOOOO!!!!!!!!!!!!!!!!!!!!!!!! i DONT BElive

Ans 7:

Soumyajit Das from Hariyana Vidya Mandir, NORTH 24 PARGANAS
Class : Class 8
Pankaj, why are you telling no . It should option 'd'.

Ans 8:

anu from The Amaatra Academy, Bengaluru
Class : Class 5
class:3the answer is D

Ans 9:

Avik Arya from Trileaves Global school , Chennai
Class : Class 3
The option is D correct

Ans 10:

AARAVPRADEEP SAHU from PADMASESHADRI BALBHAVAN SENIOR SECONDARY SCHOOL, CHENNAI
Class : Class 3

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Shreya Mangesh Patwardhan from City International school Satara road branch, PUNE
Subject :NSO    Class : Class 8

Ans 1:

ARAVINDAN MANIKANDAN from NPS INternational, Singapore
Class : Class 8
Then option A should also be correct as it talks about fermentation

Ans 2:

Arnav Gangwar from DPS NOIDA, GAUTAM BUDH NAGAR
Class : Class 8
answer cant be A since during fermentation of sugar alcohol is produced and not lactic acid

Ans 3:

Ethel shiju from National Public School Indiranagar, Bangalore
Class : Class 9
Option a is wrong because yeast does not convert sugar into lactic acid.

Ans 4:

Kabir Mendiratta from NCS , Kochi
Class : Class 8

Ans 5:

B Krithika sulochana from Devi Academy senior secondary school, Chennai
Class : Class 8
Option C is the correct answer because yeast causes fermentation .Fermentation is an anaerobic process. In this process yeast converts sugar into alcohol and carbon dioxide. Lime water turns milky indicating the presence of carbon dioxide.

Ans 6:

Pushkar Sonnekar from Ryan International School, Mumbai, Vasai East
Class : Class 8
I think that option A and C should be correct. Since option A talks about fermentation occuring which could be true considering that yeast is put into warm sugar solution. Option C is also correct since we know that one of the end products of fermentation is CO2 and lime water turns milky white when it is combined with carbon-dioxide.

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tanishka Bondhare from Saraswati international school , Hingoli
Subject :NSO    Class : Class 8

Ans 1:

Ethel shiju from National Public School Indiranagar, Bangalore
Class : Class 9
A vector diagram is a diagram which shows both direction and magnitude....hope you found it helpful!

Ans 2:

Zainab from St. Mary's Convent Inter College, Lucknow
Class : Class 8
A

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Swarnava Pal from Vivekananda Mission School, Haldia
Subject :NSO    Class : Class 3

Ans 1:

Darshil Rath from Sai International School , Bhubaneswar
Class : Class 7
Ans-d because if it is not scarce the house will flow away.

Ans 2:

Saachi Bhalgat from Vibgyor Yerwada, Pune
Class : Class 2

Ans 3:

Sidharth from Vibgyor , Navi Mumbai
Class : Class 3

Ans 4:

Jasneet Bindra from Raghubir Singh Junior Modern School, New Delhi
Class : Class 3
fgdgcbcbc vccdhdhdgvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvbcbdfdhgdhvghvbvhfhhfudfdvbccjcccbcbcbdhdhssjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjjssssssssssssssssssssssssssssssssssss

Ans 5:

Mohinder singh from Sacred heart convent school, Ludhiana
Class : Class 7
My answer was D but it changed itself as C

Ans 6:

Harshil Jain from DPS, Bangalore
Class : Class 3
The answer should be (A) but, why have they said that (D) should be the answer .

Ans 7:

vighneshwar from study hall, Lucknow
Class : Class 5
a

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anwesha from v s n, midnapore
Subject :NSO    Class : Class 8

Ans 1:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
Yes A is correct

Ans 2:

Abhinav from nesss, vadodara
Class : Class 10

Ans 3:

Sahil Agrawal from GG International School, Pune
Class : Class 8
It has to be A

Ans 4:

Shreya Mangesh Patwardhan from City International school Satara road branch, PUNE
Class : Class 10
as static friction is always more than sliding friction and horse experiences static friction during its first steps.therefore option [A] is correct.

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Vimala from Narayana, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Aarush from Podar, Mumbai
Class : Class 10
why dont you tell it yourself

Ans 2:

Aarush from Podar, Mumbai
Class : Class 10
why dont you tell it yourself

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Vimala from Narayana, Bangalore
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

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Bhagyesh Kamal from DPS, Mumbai
Subject :NSO    Class : Class 6

Ans 1:

Prajith Kumaran from RCIS, Bangalore
Class : Class 7

Ans 2:

Vikram from AVM, Mumbai
Class : Class 5

Ans 3:

Ishaan Mishra from Sai International School, Bhubaneswar
Class : Class 7

Ans 4:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
Answer should be both a and c The solution they gave it is written a but the correct answer they wrote c

Ans 5:

Kaustubh from modern vidya niketan, faridabad
Class : Class 7
the correct answer should be a as the snow slides off easily due to its cone shaped structure

Ans 6:

likith from Delhi Public School International School, Singapore
Class : Class 7
Answer should be both a and c

Ans 7:

Pulkit Krishna from St. Paul's High School, Hajipur
Class : Class 6

Ans 8:

likith from Delhi Public School International School, Singapore
Class : Class 7

Ans 9:

Pulkit Krishna from St. Paul's High School, Hajipur
Class : Class 6
The answer is C. You should Know It.

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Pulkit Krishna from St. Paul's High School, Hajipur
Subject :NSO    Class : Class 6

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