National Science Olympiad Forum By SOF Olympiad Trainer - Page 690
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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:

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

Ans 2:

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 3:

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 4:

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

Ans 5:

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

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:

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

Ans 8:

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

Ans 9:

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 10:

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

Ans 11:

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

Ans 12:

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 13:

Aaditva from Vasant Valley School, New Delhi
Class : Class 5

Ans 14:

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

Ans 15:

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 16:

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?

Ans 17:

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 18:

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

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Augustine from , coimbatore
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

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 3:

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

Ans 4:

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

Ans 5:

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 6:

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

Ans 7:

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

Ans 8:

none from na, na
Class : Class 5

Ans 9:

Shiven Dinkar from DPS Noida, Delhi
Class : Class 4

Ans 10:

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 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:

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

Ans 13:

Shreyansh Saha from Garden High School, Kolkata
Class : Class 7

Ans 14:

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

Ans 15:

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

Ans 16:

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

Ans 17:

Nishtha maheshwari from Inventure Academy, Bengaluru
Class : Class 3

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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:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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

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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meenakshi jain from mvn, faridabad
Subject :NSO    Class : Class 4

Ans 1:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
I dont know which one is correct C or B

Ans 2:

Parikshit G from DPS Panvel, NAVI MUMBAI
Class : Class 8

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The materials used to make given objects are wool , leather , cotton and silk . Out of these , only leather is hidden..... Hence , option C is correct .

Ans 4:

Risha Jakhotiya from Indo Scott Global School, Pune
Class : Class 4
The correct answer is B

Ans 5: (Master Answer)

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

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Vishad Jain from Borivali, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

INDRANI GHOSH ROY from AMRITA VIDYALAYAM, Durgapur
Class : Class 5
Answer will be C, not D

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