National Science Olympiad Forum By SOF Olympiad Trainer - Page 563
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Vikram from School of india, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 8
First we do Sedimentation and then Decantation so D is correct 😄

Ans 3:

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

Ans 4:

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

Ans 5:

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

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

Ans 1:

sarag bordoloi from dps numaligarh, golaghat
Class : Class 9

Ans 2:

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.

Ans 3:

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

Ans 4:

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 5:

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 6:

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

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Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Subject :NSO    Class : Class 2

Ans 1:

anu from Haralur, Bengaluru
Class : Class 5
a

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Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Subject :NSO    Class : Class 2

Ans 1:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune
Class : Class 6
It is c.Class 2 Div b

Ans 2:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune
Class : Class 6
It is c.Class 2 Div b

Ans 3:

Rudransh from Presidium, Gurgaon
Class : Class 2

Ans 4:

Kushagra Chaturvedi from Podar International School Chinchwad, Pune
Class : Class 6
lllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllllll

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Ashwin Shridhar from Vidyashilp Academy, Bangalore
Subject :NSO    Class : Class 7

Ans 1:

Mohit Makkar from Aravali International School, Faridabad
Class : Class 8

Ans 2:

Pratham Dave from GNS, Bangalore
Class : Class 7
It should be C

Ans 3:

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

Ans 4:

Shreya Sudarshan from RVK - Banashankari, Bengaluru
Class : Class 7
The Answer must be d

Ans 5:

Tejashree Colvalcar from Sharda Mandir School, PANAJI GOA
Class : Class 7
answer should be d

Ans 6:

Pranshu pratyush puhan from DPS siliguri, west bengal
Class : Class 10
Should be D

Ans 7:

krishneil from Elpro international school, Pune
Class : Class 6
will be d

Ans 8:

bhargav balaji from National Public School, Bengaluru
Class : Class 9
Answer must be d

Ans 9:

DIVYA SRIRAM from YUVABHARATHI INTERNATIONAL SCHOOL, SINGAPORE
Class : Class 9
The answer should be D and not A

Ans 10:

Kushal from Chirec, Hyderabad
Class : Class 7

Ans 11:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
D!!

Ans 12:

Ishan Patil from D.A.V. B.O.R.L. Public School ,Bina, Bina
Class : Class 9
1700 mm is greater than 180 cm as 180 cm is 1.8 m while 1700mm is 170meter

Ans 13:

Shaman Amin from SDM school, Mangalore
Class : Class 10
It should be D

Ans 14:

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

Ans 15:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
1700 mm=170 cm< 180 cm

Ans 16:

Daksh Kumar from GCIS, Bangalore
Class : Class 7
The answer should be 'D'.

Ans 17:

rethish from Veltech, Avadi
Class : Class 3

Ans 18:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
D

Ans 19:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
the answer is d and not c

Ans 20:

Apoorva from Centre point school Katol Road, Nagpur
Class : Class 4
The answer should be D. Because 1700mm= 170 cm and 170 cm<180cm

Ans 21:

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

Ans 22:

Sarthak yadav from RPS, Mahendragarh
Class : Class 9

Ans 23:

Adhrit from CHSV, Chennai
Class : Class 8
It has to be D, because last I checked 180 is greater than 170

Ans 24:

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

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Kavitharini Joseph from HUS, Chennai
Subject :NSO    Class : Class 5

Ans 1:

Anika Saha from New Town School, KOLKATA
Class : Class 6
i think the answer is d

Ans 2:

Karun from Kendriya vidhyalaya, Chennai
Class : Class 5
I am unable to understand this question.

Ans 3:

Nakul Bhasker from National Public School Whitefield, Bangalore
Class : Class 5
for the people who didn't understand

Ans 4:

from kalyan, Kalyan
Class : Class 6

Ans 5:

Nakul Bhasker from National Public School Whitefield, Bangalore
Class : Class 5
They r asking wht is the letter 4th to the right of the ninth letter from the right end, when all the letters r interchanged with the letter next to it like the 1st and 2nd (C and O) and then the next 2 3rd and 4th (M and P), so on.

Ans 6:

Samaira from Global Indian International School, Bangalore
Class : Class 8
Even I don’t get the question properly.........But I think the answer is (B).......what was the answer when u finished the test???? What was the answer according to the trainer??but I am just guessing... I have not done this question yet...

Ans 7:

Nakul Bhasker from National Public School Whitefield, Bangalore
Class : Class 5

Ans 8:

from kalyan, Kalyan
Class : Class 6
The answer is (A)

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Ashwin Shridhar from Vidyashilp Academy, Bangalore
Subject :NSO    Class : Class 7

Ans 1:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
I guess it is d

Ans 2:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
A square is a rectangle, remember?

Ans 3:

ADWIKA from DAV, FARIDABAD
Class : Class 10

Ans 4:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 10
I guess it is d

Ans 5:

Pranav Ramesh from Sri Chaitanya , Chennai
Class : Class 7
Fuck You SOF

Ans 6:

Rangnath sharma from MOUT LITERA ZEE SCHOOL, PATNA
Class : Class 9

Ans 7:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
How can you count squares?

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

Ans 1:

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

Ans 2:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
yes it is c

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

Ans 1:

Anushka Wasnik from DPS, nagpur
Class : Class 8

Ans 2:

Adhrit from CHSV, Chennai
Class : Class 8
This should be A...Agree with Shourya

Ans 3:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
Yes even I agree with Shourya, answer is A means it is A only. SOF why are you not giving solution for this test? This is Grade 6 NSO Mock Test 5 plz resolve this no solution part. There is no solution for ANY question! Forum is for resolving our doubts, right! Then why you aren't resolving them?

Ans 4:

sankalp from Gyan Bharti School, Saket, Delhi
Class : Class 9
In option A, the cells are not in the arrangement and the bulb receives current from only one cell

Ans 5:

Trina from Ganges Valley School, Hyderabad
Class : Class 9

Ans 6:

SJ HARITHA from PSNLO, BENGALURU
Class : Class 10
agreed

Ans 7:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
Yes. Same with Shourya. Pls clarify it SOF. I think correct answer is opt A.

Ans 8:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
I think it should be A because if you calculate and divide equally then you see that in opt C each bulb gets only power of one and a half dry cell, however in opt A the bulb gets the power of two dry cells. Please rectify SOF

Ans 9:

Akshara from sishya OMR , chennai
Class : Class 8

Ans 10:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
Yes even I agree with Shourya, answer is A. SOF why are you not giving solution for this test? There is no solution for any question

Ans 11:

sankalp from Gyan Bharti School, Saket, Delhi
Class : Class 9
Option A is Correct

Ans 12:

Nimisha Tambe from Narayana vidyalayam, Nagpur
Class : Class 8
Yes. the answer should be A. i agree with sourya.

Ans 13:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
It should be C because the ratio of A is that 1 bulb is getting 2 sources, meaning it is 1:2 while in C the ratio is 2:3, and 2 third is bigger than 1 half

Ans 14:

Aadi from Treamis World School, Bangalore
Class : Class 9
Yes. The answer should be option A, I agree with Shourya

Ans 15:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 9

Ans 16:

Shaurya from Mris 51 Gurugram, Gurugram
Class : Class 7

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Arushi from Indira National School, Pune
Subject :NSO    Class : Class 7

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