National Science Olympiad Forum By SOF Olympiad Trainer - Page 493
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Nishtha Mishra from bal bharti public school, new delhi
Subject :NSO    Class : Class 3

Ans 1:

Aatreyu from vpms, pune
Class : Class 6
B . (2.1cm)

Ans 2:

ARIV GARAI from DPS MEGACITY,KOLKATA, KOLKATA
Class : Class 3

Ans 3:

Aatreyu from vpms, pune
Class : Class 6
B . (2.1cm)

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ishit from EUROSCHOOL THANE, THANE WEST
Subject :NSO    Class : Class 4

Ans 1:

Bhavya Jain from K R Mangalam World Scholl, GHAZIABAD
Class : Class 4
Answer is A

Ans 2:

Sridatri Deb from Euro School Airoli, MUMBAI
Class : Class 4
the solution is correct as this is not combination this is just simple paring that is converted to handshakes . answer is C

Ans 3:

Sridatri Deb from Euro School Airoli, MUMBAI
Class : Class 4
no repetition of same pairs ( like AB and BA )

Ans 4:

Aryan Swain from Kendriya Vidyalaya, Barimul, Kendrapara
Class : Class 5
As said in the solution no repeating of same pairs (AB and BA) so 15 is correct.

Ans 5:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
A 30

Ans 6:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The correct answer is C

Ans 7:

vighneshwar from study hall, Lucknow
Class : Class 5
A

Ans 8:

Suniti Kumar Ghosh from Holy Angels' School, Katwa
Class : Class 8
C 15

Ans 9:

Naavya Kapoor from St Gregorios High school , Mumbai
Class : Class 6

Ans 10:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
the correct answer is D

Ans 11:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Vighneshwar , Bhavya and Anika can you tell me how the answer is A ??? Why are you telling the wrong answer ???

Ans 12:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
a

Ans 13:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
A 30

Ans 14:

Bhavya Jain from K R Mangalam World Scholl, GHAZIABAD
Class : Class 4
Answer should be A as 6 x 5 =30

Ans 15:

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

Ans 16:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8

Ans 17:

Bhavya Jain from K R Mangalam World Scholl, GHAZIABAD
Class : Class 4

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Navya Ojal from Mpv Mysore, Mysore
Subject :NSO    Class : Class 4

Ans 1:

vivaan sethi from GD goenka public school, Delhi
Class : Class 4
the correct ans is D

Ans 2:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
D

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Asmita Bhowmick from Delhi Public School Vadodara, Vadodara
Subject :NSO    Class : Class 8

Ans 1:

Shailja from The Pentecostal assembly school, Bokaro
Class : Class 8

Ans 2:

Ritoma gupta from BDMI, Kolkata
Class : Class 8

Ans 3:

Chandan Gupta from Naihati Narendra Vidya Niketan, Naihati
Class : Class 8
Can you explain how it is working

Ans 4:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
answer should be a

Ans 5:

keosha jain from saint francis convent intercollege , jhansi
Class : Class 8
please explain

Ans 6:

Satvik Mehta from St Andrews school Bowenpally, Secunderabad
Class : Class 4
It should be a

Ans 7:

Bhagyesh Kamal from DPS, Mumbai
Class : Class 8

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Anushka Srivastava from Cjm, Dehradun
Subject :NSO    Class : Class 6

Ans 1:

Pragyan Srivastava from Manipal Public School, Lucknow
Class : Class 10

Ans 2:

Pragyan Srivastava from Manipal Public School, Lucknow
Class : Class 10
The correct answer is option B . Clearly , the ligaments hold the bones together at joints and cartilage acts as a cushion that acts as a shock absorbent .

Ans 3:

Punya Paras Sundrani from Anand Niketan , Ahmedabad
Class : Class 8
it is nonsense

Ans 4:

malhar thorve from city internqtional school, satara road, pune
Class : Class 6

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SANVI from D PS VADODARA, Vadodara
Subject :NSO    Class : Class 7

Ans 1:

Pratyay Sarkar from South Point High School, Kolkata
Class : Class 7
Small ears have less blood vessels. Blood vessels help radiate heat from the body. So less blood vessels in the small ears help reduce heat loss.

Ans 2:

Pratyay Sarkar from South Point High School, Kolkata
Class : Class 7
P-(iii),Q-(v),R-(vi)

Ans 3:

Arnav Ranka from Gyan Bharati School, Saket, New Delhi
Class : Class 9
Big ears will have a comparatively more blood supply. So it will have more heat loss also.

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Ishaan Roy from Sri Chaitanya Techno School, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 7
The answer is option A, I think

Ans 2:

UTKARSH SAWARN from AIR FORCE SCHAOOL AMBALA CANTT, AMBALA CANTT
Class : Class 8
A OPTION

Ans 3:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
Option A is the correct option.

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Tanmaya Sreenath from KIDZEE OXFORD BLOOM SCHOOL, KARAIKAL
Subject :NSO    Class : Class 3

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KSHITIJ BHATIA from St Francis De Sales, New Delhi
Subject :NSO    Class : Class 4

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

Ans 1:

Prajith Kumaran from RCIS, Bangalore
Class : Class 7

Ans 2:

Gauri Chaturvedi from St Josephs Convent, Jabalpur
Class : Class 8
Answer is B

Ans 3:

Midhuna from ABCD, Banglore
Class : Class 3

Ans 4:

Master Utsav Bhattacharjee from The Emerald Heights International School , Indore
Class : Class 10

Ans 5:

sujata from Rayan International school sanpada, Mumbai
Class : Class 7
answer is B

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