National Science Olympiad Forum By SOF Olympiad Trainer - Page 863
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Mayuresh Bhatt from MDPS Sect. 87 Faridabad, Faridabad
Subject :NSO    Class : Class 3

Ans 1:

harry potter from Hogwarts school of witchcraft and wizardry , london
Class : Class 5
nicely explained

Ans 2:

Admin from Revisewise, Noida
Class : Class 3
Option A,B and C are autotrophs, which produce their own food in presence of light and water. Option C is a mushroom a Fungus and a saprophyte that obtains its nutrition and grows on dead and decaying material.

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Aarush Semwal from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

Shreyas from VPEMS, Baramati
Class : Class 4
D should both correct

Ans 2:

Shreyas from VPEMS, Baramati
Class : Class 4

Ans 3:

SIDDHARTH KUMAR CHATTERJEE from NAVY CHILDREN SCHOOL , CHICALIM
Class : Class 7
D is correct.

Ans 4:

SAMRIDDHI from Chirec International School, Hyderabad
Class : Class 4
no b is correct

Ans 5:

SAMRIDDHI from Chirec International School, Hyderabad
Class : Class 4
check solution

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Apoorva from Blue Ridge Public School, Pune
Subject :NSO    Class : Class 4

Ans 1:

Nishtha maheshwari from Inventure Academy, Bengaluru
Class : Class 3

Ans 2:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Evaporation can also differentiate salt and water after removing sand by filtration right? Evaporation will differentiate as salt will stay back and water will evaporate.

Ans 3:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6

Ans 4:

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

Ans 5:

ishaan from BJM carmel Academy, Chandrapur
Class : Class 7
why not decantaion and evaporation.

Ans 6: (Master Answer)

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

Ans 7:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4
why not decantaion and evaporation.

Ans 8:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
SOF SOF and master answerPlease give me the answer

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Prabhav Shetty from Little Rock Indian School, Udupi
Subject :NSO    Class : Class 7

Ans 1:

kunal from Av vidya mandir school , cheeka
Class : Class 7
As in winter land get cool faster than sea the air above the sea became hot and rises up and the air from the land rushes to take its place. So in this way in winter the air blow from land to sea and (c) is the correct answer.

Ans 2:

Rushil Dubey from Acharyakulam, Haridvar
Class : Class 7
the sol. given by sof is wrong as stated in above comment...correct answer is (c)

Ans 3:

Mradul from Modern public school bhiwadi, Bhiwadi
Class : Class 7
SOF HAS MADE MISTAKES IN MANY QUESTIONS...........CORRECT ANS. IS C

Ans 4:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7
correct ans. is 'C'.

Ans 5:

Keratin from Chrysalis High, Bangalore
Class : Class 8
Answer is C, don't worry people.

Ans 6:

Mohinder singh from Sacred heart convent school, Ludhiana
Class : Class 7
C is the correct answer we don't understand how the team is making these mistakes

Ans 7:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7

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Prabhav Shetty from Little Rock Indian School, Udupi
Subject :NSO    Class : Class 7

Ans 1:

anirudh_suresh@rocketmail.com from bangalore international academy, Bengaluru
Class : Class 7
D

Ans 2:

Mohinder singh from Sacred heart convent school, Ludhiana
Class : Class 7
How can the answer be c? Doesn't seem satisfying

Ans 3:

thechampiondaksh from K R Mangalam World School, New Delhi
Class : Class 8
i think the answer is d

Ans 4:

Prasuk Jain from Modern Delhi Public School, Faridabad
Class : Class 7
ans D

Ans 5:

Nilanjana De from Delhi Public School North, Bengaluru
Class : Class 8
The answer given is c. I don’t understand how.

Ans 6:

Keratin from Chrysalis High, Bangalore
Class : Class 8
Answer is D don't worry people.

Ans 7:

Aaqil Parvez from Al-Fajr International School, Chennai
Class : Class 7
d

Ans 8:

Daksh Thakkar from VIBGYOR, Mumbai
Class : Class 8
i think ans is d

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RiptideMel from Modern Vidya Niketan Senior Secondary School Sec 17, Faridabad
Subject :NSO    Class : Class 8

Ans 1:

Mohak Khetan from Podar International School Powai , Mumbai
Class : Class 8
It is C because i even googled it... so the ans is C not B

Ans 2:

Dr Anupa Ghosh from ,
Class : Class 8
correct option:B

Ans 3:

jainitf3 from MAHATMA MONTESSORI SCHOOL (CBSE) , Madurai
Class : Class 8
b

Ans 4:

Dr Anupa Ghosh from ,
Class : Class 8

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Ambar and Adwita from Suncity School, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

kavita1608@gmail.com from PRESIDENCY SCHOOL BANGALORE SOUTH, Bengaluru
Class : Class 4
c is the correct answer

Ans 2:

Sanjeev Garg from Assumption Convent School, malout
Class : Class 6
C is right

Ans 3:

Vaikhari Sonawane from symbiosis school, Nashik
Class : Class 10
c should be the answer

Ans 4:

kpks14 from RIMT World School, Chandigarh
Class : Class 7
C should be correct as the option D is advisable.

Ans 5:

rishi karthik from Bvm Global, chennai
Class : Class 5
C is correct big mistake here

Ans 6:

Rabi rajak from SHREE JAIN VIDYALAYA, Kolkata
Class : Class 5
And:D

Ans 7:

Smayan from Thakur International school, Mumbai
Class : Class 5
C is correct

Ans 8:

dhairya mittal from vidyashram international school jodhpur, Jodhpur
Class : Class 5

Ans 9:

Shivangi from St. Michael's High School, Patna
Class : Class 5

Ans 10:

KADALI VAMSIKRISHNA from BVM GLOBAL AT BOLLINENI HILLSIDE, Chennai
Class : Class 7
ANSWER: C

Ans 11:

Sharad Jain from Presidium, Ghaziabad
Class : Class 5
C should be correct.

Ans 12:

Ashwin Shridhar from VSA, Bengaluru
Class : Class 6
Yes, it should be C.

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Ambar and Adwita from Suncity School, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

Ali Hussain from Delhi Private School Dubai, Dubai
Class : Class 6
explain

Ans 2:

Bhabani Prasad from Narayan School, Kolkata
Class : Class 6

Ans 3:

Mitesh from Shishya BEML Public School, Bengaluru
Class : Class 7

Ans 4:

Arnav Raj Sharma from Dpsvk, Gurgaon
Class : Class 9
option d is the right answer. this is not possible as speed of particles increases when space between them increases .

Ans 5:

Rabi rajak from SHREE JAIN VIDYALAYA, Kolkata
Class : Class 5
And:c

Ans 6:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8

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parijatsomani from The Global Edge School, Hyderabad
Subject :NSO    Class : Class 7

Ans 1:

Mayank Gupta from Kulachi Hansraj Model School, New Delhi
Class : Class 8

Ans 2:

Aparajita Biswas from Don Bosco School Silchar, SILCHAR
Class : Class 7
The correct answer is B

Ans 3:

kunal from Av vidya mandir school , cheeka
Class : Class 7
As ground apply frictional force on the horse. As it is not easy to run on rough area as compared to smooth area because smooth area apply less frictional force.

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kriet vohra from Presidium, Gurgaon
Subject :NSO    Class : Class 5

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