National Science Olympiad Forum By SOF Olympiad Trainer - Page 489
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Bhavya Jain from K R Mangalam World Scholl, GHAZIABAD
Subject :NSO    Class : Class 4

Ans 1:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
it can be B

Ans 2:

Saarang roy from Indian school ghubra, Muscat
Class : Class 6
a glass plate can be broken easily

Ans 3:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6
Dear Master Answer, NoidaI don't understand this question as glass plate can be broken easily. Please Help Master Answer from Noida.Your Student,Ankush Dey

Ans 4:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
c

Ans 5:

Agriye Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Class : Class 4

Ans 6:

somesh from Centre point katol road, Nagpur
Class : Class 6
A floor tile can be broken with special instruments not with hands

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Aaryav Tiwari from DPS VK, Delhi
Subject :NSO    Class : Class 6

Ans 1:

Pragyan Srivastava from Manipal Public School, Lucknow
Class : Class 10
Bristlecone pine found in Sumatra

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Aaryav Tiwari from DPS VK, Delhi
Subject :NSO    Class : Class 6

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Aaryav Tiwari from DPS VK, Delhi
Subject :NSO    Class : Class 6

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Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Subject :NSO    Class : Class 6

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nishant doshi from new era senior secondary school nizampura vadodara, Vadodara
Subject :NSO    Class : Class 6

Ans 1:

Dheeraj Thriyambak M from Sri Sankara Senior Secondary School Adyar, Chennai
Class : Class 6
Answer supposed to be b

Ans 2:

Pragyan Srivastava from Manipal Public School, Lucknow
Class : Class 10
The answer is C as if assume x as a insulator , all other condition satisfy

Ans 3:

aikya from psbn, bangalore
Class : Class 5
someone please explainnnnn

Ans 4:

Anish Kumar from Dehli Public School, Bopal, Ahmedabad
Class : Class 7
Read the question carefully kids!

Ans 5:

TANUSH MAHALIK from SAI International Scool, Bhubaneswar
Class : Class 7
It says wrong then its A

Ans 6:

Avya Pandey from NPS International, Singapore
Class : Class 8
It says which one is wrong, not right

Ans 7:

TANUSH MAHALIK from SAI International Scool, Bhubaneswar
Class : Class 7
if x is insulator it should be D

Ans 8:

Falguni from Navkis, Bangalore
Class : Class 7
Can someone explain it ,please??

Ans 9:

Samitha Kumar from Boaz Public School , Chennai
Class : Class 10

Ans 10:

Samitha Kumar from Boaz Public School , Chennai
Class : Class 10

Ans 11:

PS Gour from Chirec international schoo The best 30 years and beyond, Hyderabad
Class : Class 7
plz answer

Ans 12:

Shabd Mehta from Shabd Mehta, Agra
Class : Class 7
VOTE FOR OPTION D (SAY D)

Ans 13:

ADITHYA B SOMARAJ from chinmaya vidyalaya thripunithura, cochin
Class : Class 3
And is A since X is insulator it doesn't allow electricityTo pass through so nothing glows

Ans 14:

Ahana Mandal from Delhi Public School Asansol , Asansol
Class : Class 6
Very good question. Here object X is a insulator but the bulbs glow up because of parallel connection of circuit. So according to that, option A is wrong and is the correct answer.

Ans 15:

Aarav Srivastav from DWPS , Noida Extension
Class : Class 7
ANSWER IS B

Ans 16:

Mangesh Mukund Shete from Phoenix, Hyderabad
Class : Class 3
pls explain

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UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Subject :NSO    Class : Class 7

Ans 1:

Hritvi from Podar International School, Mumbai
Class : Class 7
Q also can be cockroach. Thus in my OPINION C can also be the answer

Ans 2:

SUNIL KHANDELWAL from Bhartiya Bhavans, Kolkata
Class : Class 7
but the question says to choose incorrect answer

Ans 3:

Ekansh Agrawal from NDPS, Indore
Class : Class 7

Ans 4:

Hritvi from Podar International School, Mumbai
Class : Class 7
Forget about the Option C. Option D is the right answer.

Ans 5:

Sainyam Sharma from Thakur Public School, Mumbai
Class : Class 7
Answer is C

Ans 6:

Hritvi from Podar International School, Mumbai
Class : Class 7
Option D is the right answer. The Solution also tells the same then how can they say our answer is wrong?? Try putting this question in the "ERROR" box

Ans 7:

Ahaan Pathak from Treamis World School, Bangalore
Class : Class 8
Its Option D

Ans 8:

sunil agrawal from DPS chandigarh, Mohali
Class : Class 7
Wrong answer provided . Even the solution says answer d

Ans 9:

Naitik Mundra from International School Rheintal, Buchs Sankt Gallen
Class : Class 9
Answer should be D. Solution provided by them says so too.

Ans 10:

Krishna Srivastava from manipal public school, lucknow
Class : Class 7
Option D

Ans 11:

swayam aditya from LR DAV public school, Cuttack
Class : Class 8
eplanation given is correct but answer is option d

Ans 12:

bhuvan from vvs, bengaluru
Class : Class 7
Option D is the right answer

Ans 13:

Bhumi Chheda from SVKM J V Parekh International School, Mumbai
Class : Class 9
The answer has to be D because they have asked for the incorrect option

Ans 14:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
answer should be A. They have asked for the INCORRECT OPTION and A is incorrect. Earthworm uses skin not trachea. The answer is A. It also appears in my solution

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aditya arora from Heritage Experiential Learning School, gurugram
Subject :NSO    Class : Class 6

Ans 1:

Abhiram Vedula from Deens Academy, Gunjur, Bangalore
Class : Class 6
both b and d are correct.

Ans 2:

Shreyasi Padihary from The Cambridge International School , Bangalore
Class : Class 7
The answer could be B and D as both are correct

Ans 3:

Pragyan Srivastava from Manipal Public School, Lucknow
Class : Class 10
The correct answer is option B . A compass may be used to find East and west direction . Once you find North and South , by facing north , the right side will be East and left one will be West

Ans 4:

Charunainika A L from SILVER HILLS HSS, Kozhikkode
Class : Class 6
Also, d is right. Attraction is a sure test for magnetism. both b and d are right. Compromised?

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Arnav kaul from Chirec, Hyderabad
Subject :NSO    Class : Class 5

Ans 1:

Suhana Kedia from Griffin's international school, Kharagpur
Class : Class 5
Please correct it

Ans 2:

Suhana Kedia from Griffin's international school, Kharagpur
Class : Class 5
How is 1 correct? Please reply

Ans 3:

Pragun goel from Venkateshwar International School, Delhi
Class : Class 8
as per Wikipedia no volcano had erupted on Venus in the past 2.5 million years so 2 is the only correct option

Ans 4:

Pratham Dave from GNS, Bangalore
Class : Class 7
2 and 4 is the answer to this question

Ans 5:

Bertrand Calvin Fernando from Aqunias International School, mumbai
Class : Class 5

Ans 6:

Siddhant Singhania from AGCS purulia, Puruliya
Class : Class 7

Ans 7:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
no volcano had erupted on Venus in the past 2.5 million years so 2 is the only correct option

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Arnav kaul from Chirec, Hyderabad
Subject :NSO    Class : Class 5

Ans 1:

Pratham Dave from GNS, Bangalore
Class : Class 7
B is the answer to this question but it is showing A as correct option and it is showing B as correct option in the solutions.

Ans 2:

Harsh Gupta from saint anslems pink city jaipur , Jaipur
Class : Class 5
Both A and C are correct

Ans 3:

rajanya mandal from j h ambani, surat
Class : Class 4

Ans 4:

Pragun goel from Venkateshwar International School, Delhi
Class : Class 8
This question is correct

Ans 5:

Ayushman from Adamas International School, Kolkata
Class : Class 6
Correct answer should be d because cerebellum is below cerebrum, located towards the back of the brain.

Ans 6:

Navya GUPTA from dps noida, Noida
Class : Class 3
This is absolutely correct as y is cerebrum and x is. EllThis Is absolutely correct as y is cerebrum X is cellebellum and Z is the Medulla ✅✅✅✅

Ans 7:

vayurve gowda from narayana group of schools, chennai
Class : Class 6
this question is wrong

Ans 8:

Sonika from Delhi public school, Faridabad
Class : Class 7
THERE CHECKING IS WRONG AS ANSWER IS C

Ans 9:

PARUL GHARSE from Vibgyor, Mumbai
Class : Class 6
cerebrum is the largest part of the brain. cerebellum is the second largest part and it controls musculo-skeleton movement

Ans 10:

Fateh Singh Nanda from Gems modern academy, Dubai
Class : Class 5

Ans 11:

Prashant MD from Ambassador School Dubai, Dubai
Class : Class 5

Ans 12:

inaira heredia from Jamnabai narsee international school, MUMBAI
Class : Class 5
It says which option is incorrect not which one is correct

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