National Science Olympiad Forum By SOF Olympiad Trainer - Page 514
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Bhabani Prasad from Narayan School, Kolkata
Subject :NSO    Class : Class 6

Ans 1:

A Andrew from Lalaji Memorial Omega International School, Chennai
Class : Class 5
option b) is the answer as it is synthetic fiber

Ans 2:

student from school, city
Class : Class 10

Ans 3:

Toothless from PSBB LLA, Bangalore
Class : Class 6

Ans 4:

Akshara from sishya OMR , chennai
Class : Class 8

Ans 5:

Vihaan Tyagi from Vikas the concept, Hyderabad
Class : Class 10
The answer should be " b " not " a "

Ans 6:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
B is the answer as it may have indicated man made fibre right

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Nidhi Upadhyaya from S M shetty HIgh school, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

prarabdh thakur from podar international school, nashik
Class : Class 6
can't determine

Ans 2:

Shreetej from Pearson public school, Pune
Class : Class 5
ans=c

Ans 3:

Ronav Kerkar from Jamnabai Narsee School, Mumbai
Class : Class 7
IT SHOULD BE C

Ans 4:

yash kumar sinha from usha martin world school, patna
Class : Class 6
lol question

Ans 5:

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

Ans 6:

Ansh singh from Dav model school, Durgapur
Class : Class 5
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Ans 7:

Ayush Yadav from Salwan Public School, Gurgaon
Class : Class 6

Ans 8:

Gayatri Iyer from Sanskriti School, Pune
Class : Class 9
It should be A!

Ans 9:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Answer is C because think in the natural position. So P will be south-west to R.

Ans 10:

RISHABH from BHARATIYTA VIDYA BHAVAN, KOLKATA
Class : Class 10
should be a

Ans 11:

Ashee Srivastava from APEEJAY SCHOOL NOIDA , NOIDA
Class : Class 7
c

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AARNA Kapse from The swaminarayan school, Nagpur
Subject :NSO    Class : Class 2

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Siddhant Chaturvedi from JPHS, JAIPUR
Subject :NSO    Class : Class 1

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Saptak from Navy children school, Visakhapatnam
Subject :NSO    Class : Class 7

Ans 1:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10
HEy i do not know why but in the solution it is written that window cleaner is a aid.. This is wrong , as Window cleaner is ammonium hydroxide , which is a base.

Ans 2:

Siddharth from Navy Children School, KOCHI
Class : Class 4
ans is supposed to be c

Ans 3:

Nimisha Tambe from Narayana vidyalayam, Nagpur
Class : Class 8
D

Ans 4:

Shreya from DAV public school jamalpur, JAMALPUR
Class : Class 7
D

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Akshat Pathak from DPS Sector 30, Noida
Subject :NSO    Class : Class 3

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Ayushi from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

Nishtha Shukla from Sri Chaitanya Techno School, Gurgaon
Class : Class 8
C

Ans 2:

Vaibhav from The Millennium School , Dubai
Class : Class 8
The answer is (D).

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
No its d super nova

Ans 2:

Jagadarsh Meda from Sri Vidyanjali, Hyderabad
Class : Class 8
The Answer is Nova. C

Ans 3:

The Address from Somaiya, Mumbai
Class : Class 6

Ans 4:

Nishchay Gupta from Cambridge Court World School, Jaipur
Class : Class 6
The answer must be D . Super NovaBecause in nova no explosion happens while in Supernova it is the end of the life of the star and explosion occurs.

Ans 5:

ANVITA from KENDRIYA VIDYALAYA NO.1, CALICUT, KOZHIKODE
Class : Class 9
The answer is C. Nova

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

Shubhangam Raj from Don Bosco Academy, Patna
Class : Class 8
B

Ans 2:

Sriyansh from Surabhi , Hosapete
Class : Class 9
The answer is B. The water conducts the heat from the iron ball and thus water's temperature will increase while the temperature of the ball will constantly keep decreasing as it is loosing heat. After sometime both the water and the ball come to equilibrium state i.e they have the same temperature. From then on the temperature will remain constant. AS graph in option B indicates an increase in temperature for a while and then constant temp It is correct

Ans 3:

Sriyansh from Surabhi , Hosapete
Class : Class 9
The answer is B. The water conducts the heat from the iron ball and thus WATER'S temperature will increase while the temperature of the ball will constantly keep decreasing as it is loosing heat. After sometime both the water and the ball come to equilibrium state i.e they have the same temperature. From then on the temperature will remain constant. AS graph in option B indicates an increase in temperature for a while and then constant temp it is correct

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

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