National Science Olympiad Forum By SOF Olympiad Trainer - Page 574
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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

arnav raj sharma from gulibulium school, new york
Class : Class 8
how can exotic species THREATEN the endemic ones. they can just be more famous or better but they cant THREATEN

Ans 2:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8
Botanical garden is insitu right??

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

Ans 1:

Prajjwal Dey from MLZS Wakad, PUNE
Class : Class 6

Ans 2:

Lakshana from SBOA School and Junior College, Chennai
Class : Class 6
Then how is Mars(Planet) rusted?

Ans 3:

Arun from SOT, chennai
Class : Class 6

Ans 4:

Kaustubh Jha from Mount litera zee school, Patna
Class : Class 5
As only nails in bottle X got rusted,this means both water and airare required for rusting (as bottle X is fulfilling both the conditions) bottle W has only air, bottle Y has only water and bottle Z has oil.i.e., neither air nor water

Ans 5:

Pratham Dave from GNS, Bangalore
Class : Class 7
C is the answer to this question

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

Ans 1:

arnav jain from lotus valley international school, gurgaon
Class : Class 5
it is C as a liquid changes into a solid by freezing.

Ans 2:

Hitarthi Shah from Ahmedabad International School, Ahmedabad
Class : Class 7

Ans 3:

Syeda Aleeza Zaidi from Somerville school Noida , Noida
Class : Class 5
freezing!!!

Ans 4:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
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Ans 5:

Fareeha siddiqua from Janki Devi public school , Mumbai
Class : Class 5
its c a first standard question! oh god! however i am not sure this IS

Ans 6:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
c freezing

Ans 7:

Koustavi Chakraborty from DELHI PUBLIC SCHOOL, PUNE
Class : Class 5
answer is c..freezing

Ans 8:

Sanskriti Nagar from Rose Bud Academy, khagaria
Class : Class 5
C is the correct answer.Very easy question

Ans 9:

Hitarthi Shah from Ahmedabad International School, Ahmedabad
Class : Class 7
how in the world is it C?? it should be D

Ans 10:

Dheer Pandey from Sentia The Global School, Hyderabad
Class : Class 10
c freezing

Ans 11:

Aarya Khandekar from GK Gurukul, Pune
Class : Class 4
Its C freezing! such an easy question!!

Ans 12:

arnav jain from lotus valley international school, gurgaon
Class : Class 5

Ans 13:

Hitarthi Shah from Ahmedabad International School, Ahmedabad
Class : Class 7

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AMRITH KOOTTALA ANIL from YUVABHARATHI INTERNATIONAL SCHOOL, Singapore
Subject :NSO    Class : Class 5

Ans 1:

Saanjh Puthran from Dr. Pillai Global Academy, Mumbai
Class : Class 5
A) The Arctic penguin.

Ans 2:

Khushant Modi from Chennai Public School, Chennai
Class : Class 6
B) The camel

Ans 3:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
(A)

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Chetan Datta Rajavaram from Meridian madhapur, Hyderabad
Subject :NSO    Class : Class 4

Ans 1:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
Please explain more nicely

Ans 2:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
mud absorbs the heat and keeps the house cool

Ans 3:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
my actual answer is d

Ans 4:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 4

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PONMANIKANDAN PONRAJ from FAIPS, KUWAIT
Subject :NSO    Class : Class 3

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Labonyo Sen from Calcutta Girls High School, KOLKATA
Subject :NSO    Class : Class 8

Ans 1:

Student from School, City
Class : Class 8
What is rowel and owler?

Ans 2:

Debojyoti Majumder from South Point School , Kolkata
Class : Class 5

Ans 3:

Shreya Mahesh from Sri Sri Ravishankar Vidya Mandir, Bangalore
Class : Class 8
Rowler and Owler

Ans 4:

cherry from atomic energy central school-4, mumbai
Class : Class 9
The place where a person is engaged in owling is called an owler and a spiked revolving disc is called a rowel...

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ISHAAN ROY from NPS SINGAPORE, Singapore
Subject :NSO    Class : Class 3

Ans 1:

PONMANIKANDAN PONRAJ from FAIPS, KUWAIT
Class : Class 3
C is the incorrect sentence because respiratory system is not used for providing oxygen to all parts of our body,it is used for only breathing.

Ans 2:

Aradhya Shankar from Vibgyor, Kolhapur
Class : Class 4
right

Ans 3:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 8

Ans 4:

Vedant Chhabra from Blue Ridge Public School , Pune
Class : Class 5
tyuilo;íkjhmvbhj

Ans 5:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 8

Ans 6:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 8
I

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Ali Hussain from Delhi Private School Dubai, Dubai
Subject :NSO    Class : Class 6

Ans 1:

Agustya vaid from Somerville school vasundhara enclave, Delhi
Class : Class 7

Ans 2:

Shivyanshi from Salwan Public School, Gurugram Haryana
Class : Class 9
How is falling of a stone a 'CHANGE' in the first place?

Ans 3:

Kushal from Chirec, Hyderabad
Class : Class 7
the answer is d

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Theertha sudeep from National academy for learning, Bengaluru
Subject :NSO    Class : Class 5

Ans 1:

Subhang Deep Sahu from Chrysalis High Kadugodi . , Bangalore
Class : Class 7
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Ans 2:

Shreejal moharana from DPS Greater Faridabad, Faridabad
Class : Class 8
Only C is correct it is showing in explanation also.

Ans 3:

Biju Pappachan from Rkc , Raipur
Class : Class 1
The correct answer is C although I did answer as B.I understood that the correct answer is the when I read the solution

Ans 4:

Vidyut from Lotus Valley, New Delhi
Class : Class 5
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Ans 5:

Ishaan Ahuja from TSMS, Noida
Class : Class 6
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Ans 6:

Devavrat Sharma from Podar International School, Mumbai
Class : Class 9

Ans 7:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5

Ans 8:

Shruti Rajshree from NPS Indiranagar, Bengaluru
Class : Class 3
but as given in the options it says that loamy soil is perfect for pottery which is false . Thus the correct answer is option C.

Ans 9:

AASTHA RAI from AUXILIUM SCHOOL, KOLKATA
Class : Class 6

Ans 10:

Devina kashyap from TPS, Mumbai
Class : Class 4
as loamy soil is a mixture of clayey and sandy soil, it holds the right amount of air and water both and it is best suitable for pottery. Thus both the answers B and C should be correct.

Ans 11:

Shruti Rajshree from NPS Indiranagar, Bengaluru
Class : Class 3
but as given in the options it says that loamy soil is perfect for pottery which is false . Thus the correct answer is option C.

Ans 12:

Shreya Garg from Indus public school, Jind
Class : Class 6
Nice question

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