National Science Olympiad Forum By SOF Olympiad Trainer - Page 665
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Braj Bachchan from Ramagya School, Noida
Subject :NSO    Class : Class 3

Ans 1:

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

Ans 2:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 3:

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

Ans 4:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 5:

Ram Prasanna from Basil Woods International, Hyderabad
Class : Class 3
C

Ans 6:

Avantika Raj from Delhi Public School, Bengaluru
Class : Class 9
c

Ans 7:

Agrima Ghosh from DPS NEWTOWN, KOLKATA
Class : Class 3
dddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddddd

Ans 8:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 9:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 10:

Veer Jain from LPS Global, Noida
Class : Class 4
ans ;c

Ans 11:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 12:

Prajakta from symbiosis, Pune
Class : Class 3
B

Ans 13:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 14:

CHAITANYA AGARWAL from St. Patrick's Academy, MEERUT
Class : Class 5
B

Ans 15:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 16:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 17:

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

Ans 18:

shadman khan from international school guwahati, Guwahati
Class : Class 4
c

Ans 19:

aarav m from kumarans, bengaluru
Class : Class 3
B

Ans 20:

Santina Suzanne from owis, bangalore
Class : Class 4
the answer should be D

Ans 21:

Hargun Wadhwa from Manav Rachna International School, Sector 46 Gurgaon
Class : Class 4
Correct answer is option A

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Samika Ranjan from The Shri Ram School Aravali, Gurgaon
Subject :NSO    Class : Class 4

Ans 1:

Abhyuday Dutta from DPS NOIDA, Ghaziabad
Class : Class 5
The correct answer is D)

Ans 2:

Rahul Vineesh from Indian Learners Own Academy, Kuwait
Class : Class 4
ans. c

Ans 3:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7

Ans 4:

somesh from Centre point katol road, Nagpur
Class : Class 6
C

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The answer is C ( frock )

Ans 6:

Yashraj Namdev Deshmukh from Sahyadri English School, Loha, Nanded
Class : Class 7
C

Ans 7:

somesh from Centre point katol road, Nagpur
Class : Class 6
CCCCCCCCCCCCCCCCCCCCCCCCÇCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 8:

Aarvi Gosai from The New Tulip International School, Ahemdabad
Class : Class 4
for those who don't know cardigan is a type of winter clothing

Ans 9:

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

Ans 10:

Aviral Shukla from Apeejay School Sheikh Sarai, New Delhi
Class : Class 10
It is cardigan

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Siddharth Mahesh from mdav public school , Hyderabad
Subject :NSO    Class : Class 8

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PRAJAKTA SUHAS MARATHE from ST. HELENA'S SCHOOL, PUNE
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Aaditva from Vasant Valley School, New Delhi
Class : Class 8

Ans 3:

Indrasish Chakraborty from Delhi Public School JOKA South Kolkata, Kolkata
Class : Class 5

Ans 4:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Answer should be A car with least no.of people will go faster right

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 9
ASHMI , you are confusing me and others also I think . Firstly you said - please explain then you said the answer is A then in the experiment in first line you said the answer is D but in the last line you wrote the answer is A !!!!! C an you explain what is the correct answer in your eyes A or D ?

Ans 6:

Samika Ranjan from The Shri Ram School Aravali, Gurgaon
Class : Class 7
d because the car will go faster with more wieght

Ans 7:

Nishchita from Gems Modern Academy , Dubai
Class : Class 8
Answer is D

Ans 8:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Well,Snow White ,from Paris, I think ASHMI is saying that the answer is 'D'.

Ans 9:

Krisha Ganeriwal from Podar International school, Mysore
Class : Class 2
The correct answer is a

Ans 10:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
c

Ans 11:

Manan thorat from Podar powai, Mumbai
Class : Class 4
THE ANSWER IS A!

Ans 12:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
d

Ans 13:

Adithya raj singh from chinmaya international residential school, tirupur
Class : Class 8
the answer a

Ans 14:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Answer is D as gravitational force acts quicker on the heavier object.You can try an experiment related to this answer.Throw a plastic bottle cap and metal bottle cap OR a sheet of paper and a glue bottle OR any two such things so that one is heavy and the other one is light. Then throw them from the same height and at the same time. Then you'll get the answer i.e. the heavier thing fell before the lighter thing. I tried this experiment after giving my first opinion (OPTION A-you can see it) and it gave me good results.

Ans 15:

Ayan Sharma from DPS Whitefield, Bangalore
Class : Class 6
This is wrong logic. All the cars will go down with same speed. The acceleration is same for all objects. Only when there is significant air resistance will the speeds be different. E.g., bullet vs. a feather. Look for Galileo's experiment. In this question, the air resistance will not be any different across the 4 choices.

Ans 16:

Harishchandra C from narayana e techno school, chennai
Class : Class 5
OK YOU ARE TELLING THAT AIR BUT E.G., STEEL BALL VS SPONGE BALL IN SLOPE SEE BELLIONS EXPERIMENTS, HE WILL PROVE THAT ON 76TH EXPERIMENT

Ans 17:

Krisha Ganeriwal from Podar International school, Mysore
Class : Class 2
Aaaa

Ans 18:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
it is D because they are going down a slope the more the weight the faster the car goes down right?

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Augustine from , coimbatore
Subject :NSO    Class : Class 4

Ans 1:

none from na, na
Class : Class 5

Ans 2:

Nishtha maheshwari from Inventure Academy, Bengaluru
Class : Class 3
It should be D, large intestine

Ans 3:

Shiven Dinkar from DPS Noida, Delhi
Class : Class 4

Ans 4:

Jui from podar international School, PUNE
Class : Class 6
large intestine

Ans 5:

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

Ans 6:

Aviral Shukla from Apeejay School Sheikh Sarai, New Delhi
Class : Class 10
It is D large intestine

Ans 7:

Yaduveer Rathore from MSMS School, Jaipur
Class : Class 5
4 large interstine

Ans 8:

Harishchandra C from narayana e techno school, chennai
Class : Class 5
C AND D ALSO WILL ABSORB WATER SO C AND D SEE CORRECT IT SOF

Ans 9:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7

Ans 10:

Bk Tiwari from S.D.A, Surat
Class : Class 9
D is the answer

Ans 11:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6
Yes, I also think it is Option D) Large Intestine

Ans 12:

Shraddha S Nair from Bright CBSE, Day school vasna, Vadodara
Class : Class 7
ANSWER IS D BECAUSE ABSORPTION OF WATER FROM THE FOOD IS DONE BY LARGE INTESTINE

Ans 13:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Harishchandra, see, clearly, the pic in option 'C' is small intestine.The pic in option 'D' is of large intestine.The answer is option'D'

Ans 14:

Nishtha maheshwari from Inventure Academy, Bengaluru
Class : Class 3

Ans 15:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7
4The answer will be D It is the correct answer

Ans 16:

Shreyansh Saha from Garden High School, Kolkata
Class : Class 6

Ans 17:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Harishchandra, in option C the figure is of ' Small Intestine ' and in option D the figure is of ' Large Intestine' . So the answer is D

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Puneet Arora from ,
Subject :NSO    Class : Class 6

Ans 1:

Yojit kashyap from APS Ahmedabad, Ahmedabad
Class : Class 6
It is reversible and chemical because salt has sodium and chlorine and water has hydrogen and oxygen so different item formed It is reversible because you can separate them by evaporating the water

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Gaurab Das from DPS School, Bengaluru
Subject :NSO    Class : Class 9

Ans 1:

Aditi Agrawal from Sunbeam School Bhagwanpur, VARANASI
Class : Class 9
How can gravitational force increase with altitude?

Ans 2:

Aryan Srivastava from Jayshree Periwal High School, Jaipur
Class : Class 9
this is wrong

Ans 3:

Rishit Saini from R. A. N. Public School , Rudrapur
Class : Class 9
the question is wrong.

Ans 4:

harnoor from cambridge international school, nawanshahr
Class : Class 9
answer given is wrong

Ans 5:

sathvik from nsm public school, vijaywada
Class : Class 9
all the options seem inapropriate for this

Ans 6:

Aardev from Choithram School Manik Bagh, Indore
Class : Class 9
ALL THE OPTIONS ARE INCORRECT

Ans 7:

Ridhi Goyal from DAV Public School, Ludhiana
Class : Class 9

Ans 8:

from d.g.v. sr. sec. school, rohtak
Class : Class 9
correct option is not given

Ans 9:

from ,
Class : Class 10
Gravitational force decreases when altitude increases as gravity is inversely proportional to square of distance that separates earth and the body

Ans 10:

aryan kushwaha from delhi public school amballa, amballa
Class : Class 9
GRAVITATIONAL CAN NOT INCREASE WITH ALTITUDE

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Yashvi Agrawal from DPS Indirapuram, Ghaziabad
Subject :NSO    Class : Class 6

Ans 1:

Puneet Arora from ,
Class : Class 5
Option c

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Roshan Choudhary from Aps tezpur , Tezpur
Subject :NSO    Class : Class 3

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Augustine from , coimbatore
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

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

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