National Science Olympiad Forum By SOF Olympiad Trainer - Page 735
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Asmi Raniga from Indian school Ghubra, Muscat
Subject :NSO    Class : Class 3

Ans 1:

Anvita sinha from Maharaja agrasen model school , Delhi
Class : Class 7
6

Ans 2:

Aditi Mahanti from DPS North Kolkata, Kolkata
Class : Class 3
6

Ans 3:

Aditi Mahanti from DPS North Kolkata, Kolkata
Class : Class 3
6

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Sriram from DPS Modern Indian school , Doha
Subject :NSO    Class : Class 8

Ans 1:

Chatresh ramasai gudi from Bgsnps , Bangalore
Class : Class 8
Its all of these.

Ans 2:

Shriyans from DPS Agra, Agra
Class : Class 8
It is B because U cannot remove the building and in option C, CO2 is heavier not lighter thann Oxygen

Ans 3:

ANIKA SHUKLA from UDGAM SCHOOL FOR CHILDREN, AHMEDABAD
Class : Class 10

Ans 4:

Daksh Saraswat from Rajiv international School, Mathura
Class : Class 8
Why is it b

Ans 5:

Amrit Biswas from INDUSVALLEY PUBLIC SCHOOL, Noida
Class : Class 10
it is b

Ans 6:

Abhiraj Gupta from BAPS Swaminarayan Vidhyamandir, Silvassa, Silvassa
Class : Class 6

Ans 7: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

Ans 8:

Rishika Misra from AECS 4, Rawatbhata
Class : Class 9
It should be ALL OF THESE.

Ans 9:

midhuna from ABCD, Hyderabad
Class : Class 10
answer is D formation of a blanket around the oxygen gascuts off the supply of oxygen !!also cooling it down

Ans 10:

Pushkar Sonnekar from Ryan International School, Mumbai, Vasai East
Class : Class 8
It is option 'b', since you cannot remove the building as mentioned in option 'a'. Water does reduce the temperature of both wood and paper below their ignition temperature to combust fire. Option 'c' is partially correct but also wrong since co2 does form a blanket around the flame, cutting out o2 supply, but it does this because it is heavier then o2, not light.

Ans 11:

Amrit Biswas from INDUSVALLEY PUBLIC SCHOOL, Noida
Class : Class 10
none of the options are correct

Ans 12:

arnav from the gurukul, Panchkula
Class : Class 5

Ans 13:

ANIKA SHUKLA from UDGAM SCHOOL FOR CHILDREN, AHMEDABAD
Class : Class 10
It is b

Ans 14:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
not all of these we if u see option a it says to remove the entire combustible material nut how can you remove an entire building if it is on fire?

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NISHIT.JHA from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

SHAH HITANSH JINESH from S H KHARAWALA, AHMEDABAD
Class : Class 8
The Weaver bird uses its beak like a needle to sew leaves and other materials to make a nest,that's true............ The Penguin collects a few pebbles and stones to make a nest,that's true........... Eagles and vultures simply put a few sticks together,that's false........... The Woodpecker pecks a tree trunk with its beak to make a hole for nest,that's true............ So,OPTION (C) will be INCORRECT.

Ans 2:

ishi gupta from DPS NOIDA, NOIDA
Class : Class 4
C

Ans 3:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer is A because tailor bird uses its beak like a needle to sew leaves and other material to make a nest.weaver bird weaves and makes a nest.

Ans 4:

Kanav Dhingra from DPS sec45, Gurgaon
Class : Class 10
option CSOF waalon ans. change karo

Ans 5:

ADITYA ROY from VIDYASAGAR SHISHU NIKETAN, MEDINIPUR
Class : Class 5
option C is the right answer

Ans 6:

sauradeep from j v m Shyamali , ranchi
Class : Class 10

Ans 7:

Rajas Khare from P G Garodia school, Mumbai
Class : Class 5
Option C is correct

Ans 8:

sauradeep from j v m Shyamali , ranchi
Class : Class 10

Ans 9:

sauradeep from j v m Shyamali , ranchi
Class : Class 10
YES OPTION C IS CORRECT

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Dhairya Godbole from KLE Eng Medium School, SOLAPUR
Subject :NSO    Class : Class 4

Ans 1:

Santina Suzanne from owis, bangalore
Class : Class 4
c is obviously correct!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 2:

Manya Pujar from EuroSchool, Davangere
Class : Class 6
ans is B as knife and axe have one inclined plane

Ans 3:

Hansikaa from Jaigopal Garodia Rashtrothana Vidya Kendra, Bangalore
Class : Class 8

Ans 4:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer is B.

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 9
creative writing brown eyes queens creative writing masters https://losttoys.info/ thesis writers in mumbai creative writing guelph minor

Ans 6:

Sashrika Pasunoori from KV Gachibowli, Hyderabad
Class : Class 5
Somebody tell the correct answer! 1 is saying B and another one is saying D. Tell the correct answer

Ans 7:

Santina Suzanne from owis, bangalore
Class : Class 4
ccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccccc

Ans 8:

Abhinha Ajay Ovhal from Podar International School, Latur
Class : Class 7
d because they asked incorrect one!!!!!!!!!!!!you all did'nt read it correctly

Ans 9:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
CORRECT ANSWER IS d

Ans 10:

Chinmay S Amboori from Adani Public School, Mundra
Class : Class 7
ramp is an inclined plane

Ans 11:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6
What is an inclined plane ?

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Vidhya M from Vibgyor High Bannerghatta, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Ojas Paranjape from Gems Modern Academy, Dubai
Class : Class 3
What is happening c

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 3:

Chinmayee from Dimensions , Singapore
Class : Class 4
C should be the answer, right?

Ans 4:

Chinmayee from Dimensions , Singapore
Class : Class 4
I mean B.

Ans 5:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
The correct answer is D.

Ans 6: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 7:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Please explain

Ans 8:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Answer is D because in option A the water is going to the bottle and in option D it's just blowing air.

Ans 9:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
correct

Ans 10:

Chinmayee from Dimensions , Singapore
Class : Class 4

Ans 11:

Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Class : Class 4
dddddddddddd should be the ans

Ans 12:

Rahul from Cambridge school, noida
Class : Class 4
Tell the reason Mr. Admin??? It would be C)OK!!!

Ans 13:

sudeep from DPS, Bangalore
Class : Class 8
answer: A

Ans 14:

Maniska nayak from KIIT international, Bhubaneswar
Class : Class 5
how is it A? What is happening in A?

Ans 15:

SAI KRISHNA from SHISHYA BEML PUBLIC SCHOOL, BANGALORE
Class : Class 3
ans should be c coz when air molecules come the water molecules will go out right??? so ans is c

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Tanya A Mandali from Sri Kumaran Public School , Bangalore
Subject :NSO    Class : Class 5

Ans 1:

Vyom from St KABIR , Ahmedabad
Class : Class 5
question no 19 and 20 are coming together.

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Tanya A Mandali from Sri Kumaran Public School , Bangalore
Subject :NSO    Class : Class 5

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Anant V Manoj from Bharatiya Vidya bhawan, Thrissur
Subject :NSO    Class : Class 7

Ans 1:

Anant V Manoj from Bharatiya Vidya bhawan, Thrissur
Class : Class 7

Ans 2:

Papiya Biswas from ARMY PUBLIC SCHOOL, Kolkata
Class : Class 5
option B

Ans 3:

Sunidhi chatterjee from Carmel school kargali , Bokaro
Class : Class 7
I think it's option b earthworm

Ans 4:

Nabhajit Bhar from Techno India Group Public School, Chinsurah
Class : Class 7
option B

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Karmanya Gupta from DPS, Udaipur
Subject :NSO    Class : Class 5

Ans 1:

AHELI CHAKRABARTI from BGS INTERNATIONAL PUBLIC SCHOOL, DWARKA
Class : Class 3
Option D has a backbone for sure so the answer should be either A,B or C.

Ans 2:

Rudra Tripathi from DPS Noida, Noida
Class : Class 10
According to scientific facts all reptiles have backbone . If they didn't have a backbone they couldn't crawl .

Ans 3:

Mohammed Najl from Credence high school Dubai, Dubai
Class : Class 5
i think it is option a b and c

Ans 4:

Aryan Sirohi from Mount LItera Zee School, Bangalore
Class : Class 8
D

Ans 5:

Inamul from Springs, Nilambur
Class : Class 9
the answer is c crickets donot have backbone. fish obviously has backbone snakes have flexible backbone(cartilage) and all reptiles have backbone

Ans 6:

Niten Mohan from ,
Class : Class 2
According to Known Scientific facts options a) b) and c are non vertebrate so why are Options a and b are not part of right answer? At times quality of questions raise a doubt about due diligence being put in articulating the questions .

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Dheer Pandey from Sentia The Global School, Hyderabad
Subject :NSO    Class : Class 4

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