National Science Olympiad Forum By SOF Olympiad Trainer - Page 654
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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:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

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 8:

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

Ans 9:

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

Ans 10:

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

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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:

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 2:

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

Ans 3:

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 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:

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

Ans 6:

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 7:

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 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:

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

Ans 10:

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

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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

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

Ans 17:

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

Ans 18:

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

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Augustine from , coimbatore
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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 5:

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 6:

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

Ans 7:

Shiven Dinkar from DPS Noida, Delhi
Class : Class 4

Ans 8:

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

Ans 9:

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 10:

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

Ans 11:

Nishtha maheshwari from Inventure Academy, Bengaluru
Class : Class 3

Ans 12:

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

Ans 13:

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 14:

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

Ans 15:

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

Ans 16:

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

Ans 17:

none from na, na
Class : Class 5

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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:

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

Ans 2:

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 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

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

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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: (Master Answer)

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

Ans 2:

Risha Jakhotiya from Indo Scott Global School, Pune
Class : Class 3
The correct answer is B

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:

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

Ans 5:

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

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