National Science Olympiad Forum By SOF Olympiad Trainer - Page 597
  1. Home
  2. /  Forum

User Forum

Ask Your Question
nimay gupta from Shiv Nadar School, noida
Subject :NSO    Class : Class 6

Ans 1:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
Thank you saanvi

Ans 2:

A S Neeraj from K V 2, Chennai
Class : Class 6

Ans 3:

Anamkhan Mulla from Navrachna Sama, Vadodara
Class : Class 7
Yes, Saanvi u r right...Thanks Anamkhan

Ans 4:

Akshara from sishya OMR , chennai
Class : Class 8

Ans 5:

MInnal Senthil from Prakriya, Bangalore
Class : Class 5
i dont know

Ans 6:

Ashwini Nemade Chaudhari from akshara, Pune
Class : Class 6

Ans 7:

Nila Pillai from Chennai public School, Chennai
Class : Class 6

Ans 8:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
what is this?

Ans 9:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
I can not understand.

Ans 10:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
Thank you for the solution saanvi

Ans 11:

Saanvi from rvk, bengaluru
Class : Class 9
the sum of digits of the numbers in option a,b,d comes to 29. whereas in case of option c the total is 27.hence C is the correct answerwh

Ans 12:

Naisha from Brilliant public school b, Bilaspur
Class : Class 8
Thanks for the solution saanvi

Ans 13:

Achintya Pandey from DPS NOIDA, Noida
Class : Class 6
solution pls

Ans 14:

SAMPAD BANERJEE from DELHI PUBLIC SCHOOL , BILASPUR
Class : Class 9
Thank you Sanvi

Ans 15:

Trisha Singh from Navy Children School, New Delhi
Class : Class 8
i really can't understand.

Ans 16:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
Thanks Sanvi

Post Your Answer

Jasmit kaur from Sun Valley International School, Vashundra
Subject :NSO    Class : Class 5

Ans 1:

Sourav Jena from ODM public school , BHUBANESWAR
Class : Class 4

Ans 2:

Arnav Nandan from ST PETERS COLLEGE AGRA, Agra
Class : Class 9
I ticked D by mistake 🙄

Ans 3:

Arnav Raj Sharma from Dpsvk, Gurgaon
Class : Class 9
every question is fake without solution including this one

Ans 4:

Aniruddh Singh from Premia Academy , Hydrabad
Class : Class 7
When we stop exercise in heart rate decreases So in the graph it will be a decline in the line so option is B

Ans 5:

Mrigank Roy from Delhi Public School Ghaziabad, Ghaziabad
Class : Class 10
Can you explain

Ans 6:

Pratik Gupta from MPS, Abu Dhabi
Class : Class 5

Ans 7:

Nimisha Saikia from Maria's public School, Guwahati
Class : Class 6
Option C) as it ask that what is the heart beat just stop so it means That in this point of time the heart beat is gonna decrease.

Ans 8:

UMA Subramanian from Global Indian International School, Singapore
Class : Class 7

Ans 9:

Dripto Chakraborty from Greenwood High Sajarpur, Bangalore
Class : Class 5
bruh, ques 12

Ans 10:

swami shriramji from ST. ANN'S SCHOOL , beed
Class : Class 5
very silly question! haaaaaah

Ans 11:

ATHARVA from Vibgyor High, Vadodra
Class : Class 2
ans is c

Ans 12:

S Dhruv Kumar from T.I.M.E School Bandlaguda , Hyderabad
Class : Class 5
can you please explain me

Ans 13:

D M Sarvesh from Narayana Group of Schools, Mogappair
Class : Class 4
Can you please explain

Ans 14:

Gayatri Iyer from Sanskriti School, Pune
Class : Class 9
U gotta explain this... d is also correct

Ans 15:

Arnav Raj Sharma from Dpsvk, Gurgaon
Class : Class 9
its D

Ans 16:

Shubham Majhi from Sri Chaitanya Techno School, Bangalore
Class : Class 5
Areem is correct

Ans 17:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is B because as in the line graph the number of heartbeats decreased in the line RS.

Ans 18:

Priyanshi Singh from Deens Academy Bangalore, Bangalore
Class : Class 5

Ans 19:

Krithi Manasvini from Alwin Memorial Public School, Chennai
Class : Class 7
Areen is correct but I ticked d so I got it wrong

Ans 20:

Riya from Bhavan Vidyalaya, Chandigarh
Class : Class 8

Ans 21:

Fareeha siddiqua from Janki Devi public school , Mumbai
Class : Class 5

Ans 22:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Can u please explain

Post Your Answer

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

Ans 1:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Novemberook is a typing mistake. Everyone can see that.

Ans 2:

Diya Jasmina from Samsidh MLZS, Bengaluru
Class : Class 4
They're saying after 4th tuesday that means 29 November. Novemberook could be a mistake.

Ans 3:

DEVANG Gupta from B K birla school kalyan, Kalyan
Class : Class 4

Ans 4:

Akshat Pathak from DPS, Noida
Class : Class 4
[a] is the correct answer

Ans 5:

Diya Jasmina from Samsidh MLZS, Bengaluru
Class : Class 4
What is this Novemberook. I think it means November Book or is it a typing mistake.

Ans 6:

Rohan Singhal from Manav Rachna International School, Gurgaon
Class : Class 5
sof please tell that what is novemberook

Ans 7:

Gunnit Kant from DPS, Nerul, Navi Mumbai
Class : Class 5
the correct answer is d

Ans 8:

Akshat Pathak from DPS, Noida
Class : Class 4
there is nothing called NOVEMBEROOK

Ans 9:

Aajani Datta from The Samhita Academy, Bangalore
Class : Class 5

Ans 10:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The answer is D because they are saying AFTER 4th Tuesday of November 20XX that means 4th Tuesday is 28th November but after 28th November the date is 29th November .

Ans 11:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Novembrook could be a mistake

Ans 12:

Deepayan Das from South Point High School, Kolkata
Class : Class 6
what is Novemberook?

Ans 13:

DEVANG Gupta from B K birla school kalyan, Kalyan
Class : Class 4

Ans 14:

Devansh from asn senior secondary school, delhi
Class : Class 8
[d] is wrong

Ans 15:

Goutham from lt, Chennai
Class : Class 4
Novemberook ain't nothin. there is nothin' called like that but is the ans.

Ans 16:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Actually D is correct but there is a typing mistake in D4th Tuesday of November 20XX = 28 November. The next day is 29 November. So D is correct not A. There is a typing mistake in D, but that does not mean D is wrong.

Ans 17:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
Novemberbook is a typing error. So the ans is D because it is telling 4th Tuesday which is 28th and it is said that just after 28th so the ans is D

Ans 18:

ram from vibgyor, pune
Class : Class 5

Post Your Answer

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Subject :NSO    Class : Class 3

Ans 1:

Labonyo Sen from Calcutta Girls High School, KOLKATA
Class : Class 9
It will be A.It is 'ROTATION' NOT 'REVOLUTION'..............

Ans 2:

MS CHARVI from HAL GNANAJYOTI SCHOOL, Bangalore
Class : Class 4
C

Post Your Answer

Yatharth Aggarwal from DPS Rohini, Delhi
Subject :NSO    Class : Class 2

Ans 1:

Sreyas from Don Bosco, Park Circus, Kolkata
Class : Class 5
I AM 👿👿👿👿

Ans 2:

Yatharth Aggarwal from DPS Rohini, Delhi
Class : Class 6

Post Your Answer

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

Ans 1:

Adit Aggarwal from Vibgyor High, Bengaluru
Class : Class 5
My answer is A as train runs on tracks. It is not necessary that they carry passengers. Why is there no explanation SOF?

Ans 2:

IAMLOST from ABC, Pune
Class : Class 8
the answer is a

Ans 3:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7
Totally A

Ans 4:

PURAV KHANDELWAL from TIME SCHOOL, HYDERABAD
Class : Class 4

Ans 5:

Vihaan from Dhirubhai Ambani International School, Mumbai
Class : Class 4
A

Ans 6:

shubhavi Dhondge from NPS, Banagalore
Class : Class 9
the answer is A

Ans 7:

Sreenath from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 5
The answer has to be A.

Ans 8:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
SOF don't you know the difference between MODES of transport and MEANS of transport? If you do, why did you give wrong answer?And if you don't ,search on Google! GOT IT SOF?

Ans 9:

Abhinha Ajay Ovhal from Podar International School, Latur
Class : Class 7

Ans 10:

Soham Hatua from The Hindu Senior Secondary School, Chennai
Class : Class 7
It has to be A because train runs on tracks and others run on road.They said " Basis of transport " while on the explanation its written as " Odd one out "

Ans 11:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7

Ans 12:

shubhavi Dhondge from NPS, Banagalore
Class : Class 9

Ans 13:

kaashvi from Deens Academy, Bangalore
Class : Class 9
answer should be A. Trains can carry goods as well as passengers so the odd one out CANNOT be on the basis of passengers. Please do not give such questions if the answer is not clear

Ans 14:

Parth Dhondiram Gadgile from Narayana School Loha, Palam
Class : Class 4
It,s answer is train 🚆 because it go out of city .

Ans 15:

Ronav Kerkar from Jamnabai Narsee School, Mumbai
Class : Class 7

Ans 16:

Rida from VIBGYOR ROOT AND RISE MALAD, MUMBAI
Class : Class 5
agreedThe answer will be Anot clear in train image its Passenger or Goods

Ans 17:

Archit Sanyal from Manav Rachna International , Gurgaon
Class : Class 5
It has got to be A

Ans 18:

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

Ans 19:

Tavish from Sanskriti Hyderabad, Hyderabad
Class : Class 7
Ok for now but Sof should not give these question which has 2 ANS

Ans 20:

Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Class : Class 4
same

Ans 21:

vg from DPS gurgaon sector45, Gurgaon
Class : Class 4
my answer is A as train runs on tracks others on road with wheels and can also carry goods not necessary passengers

Ans 22:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4
I also chose a. Why is there no explanation sof

Ans 23:

SJ HARITHA from PSNLO, BENGALURU
Class : Class 10
SOME TIMES EVEN BUS AND TRAINS CARRY GOODS SO THE ANSWER IS A

Ans 24:

shubhavi Dhondge from NPS, Banagalore
Class : Class 9

Ans 25:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
You have to solve on the basis of MODE OF TRANSPORT not MEANS OF TRANSPORT SOF you yourself have given mode of transport is basis but you gave wrong answer! correct answer is A as means of transport includes transport which carry goods, passengers etc. And mode of transport means land, air or water transport. All the options are land transport but train runs on rail and other vehicles(auto rickshaw, truck and bus) run on road So answer is A

Ans 26:

Shatam Gedam from The Sanskaar valley School, Bhopal
Class : Class 5
I chose D because rickshaw runs in A city and the rest do not

Ans 27:

Mohammed Najl from Credence high school Dubai, Dubai
Class : Class 5
I also think it is A.

Ans 28:

Anant Saxena from Delhi public school Gandhinagar , Gandhinagar
Class : Class 9
Trains run on rails so Answer should be A

Ans 29:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4
SAME HERE

Ans 30:

Ronav Kerkar from Jamnabai Narsee School, Mumbai
Class : Class 7
A

Ans 31:

UMA Subramanian from Global Indian International School, Singapore
Class : Class 7
The answer should be A as trains run on track and others run on road.

Ans 32:

Vihaan from Dhirubhai Ambani International School, Mumbai
Class : Class 4
Its C!

Ans 33:

Vihaan Rathi from altius fortius highschool, Nadiad
Class : Class 6
I think the answer is a as it runs on tracks

Ans 34:

Tavish from Sanskriti Hyderabad, Hyderabad
Class : Class 7
Yes SOF answer should be "A".Its not correct this type of question is not correct!We will take the answer is A as correct.

Ans 35:

Shatam Gedam from The Sanskaar valley School, Bhopal
Class : Class 5
tHE ANSEWR IS c BECAUSE TRUCK IS USED TO TRANSPORT GOODS WHILE THE OTHERS TRANSPORT PASSANGERS

Ans 36:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
A

Ans 37:

PURAV KHANDELWAL from TIME SCHOOL, HYDERABAD
Class : Class 4

Ans 38:

Yajur Nag from dps vk, delhi
Class : Class 5
The answer is A as trains run on tracks. not necessary that they carry passengers

Ans 39:

Anahita Saxena from Ryan International School Pune, Pune
Class : Class 3
The ans is A. They wrote C because no one sits on trucks. But the ans shud be A. Cuz train goes on rails, not on road. The others go on the road, not on rails. Seriously SOF! Why do u give wrong answers? it is not necessary people to sit on trucks!!!

Post Your Answer

Preethi Saseedaran from PSBB Siruseri , Chennai
Subject :NSO    Class : Class 5

Ans 1:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5

Ans 2:

Syon from Sentia The Global School, Hyderabad
Class : Class 8
The answer is "c" because in the question its written that he moved it in a clockwise direction

Ans 3:

Biju Pappachan from Rkc , Raipur
Class : Class 1
It is B.

Ans 4:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
b is the answer

Ans 5:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
yes very simple

Post Your Answer

Vikram from School of india, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Shaurya Suryawanshi from The Orbis school, Pune
Class : Class 7
It's 'd'

Ans 2:

Deepayan Das from South Point High School, Kolkata
Class : Class 6
The particles have settled below, so, sedimentation is done.

Ans 3:

XXX from SVM, Bangalore
Class : Class 5
it can be d or c!!!

Ans 4:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 9
First we do Sedimentation and then Decantation so D is correct 😄

Ans 5:

Naitik Banerjee from DPS Ruby Park Kolkata, Kolkata
Class : Class 5
It is d

Post Your Answer

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Subject :NSO    Class : Class 6

Ans 1:

Agustya vaid from Somerville school vasundhara enclave, Delhi
Class : Class 7
i agree with PALAK

Ans 2:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10
jguk;p jie gffbgmtft boip kio tog boyh rjoouyti. thay tis vy? n ot bec auseofthat. itis becaus

Ans 3:

sarag bordoloi from dps numaligarh, golaghat
Class : Class 9

Ans 4:

Samrat Gupta from Shree Sanatan Dharm Education Centre, Kanpur
Class : Class 9
The correct answer is option c after burning paper and pieces we cannot bring them back...But in 2030 or 40 or betweem them i hope that time machine is made then it can ve reversible

Ans 5:

PALAK from WOOD BLOSSOM SCHOOL, BATALA
Class : Class 2
its c

Ans 6:

Raghav Aggarwal from CAMBRIDGE SCHOOL INDIRAPURAM, INDIRAPURAM
Class : Class 7
it would be c because tearing of paper and burning of it cannot be brought back to what it was a while age. Thus, it is irreversible change.

Post Your Answer

Arnav Raj Sharma from Dpsvk, Gurgaon
Subject :NSO    Class : Class 2

Ans 1:

anu from Haralur, Bengaluru
Class : Class 5
a

Post Your Answer