National Science Olympiad Forum By SOF Olympiad Trainer - Page 758
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Dev Rawat from R D Rajpal School, New Delhi
Subject :NSO    Class : Class 7

Ans 1:

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

Ans 2:

AVINASH KASHYAP from PSBB SS SCHOOL, Chennai
Class : Class 8
Solution shared seems to be incorrect in this case or given in reverse order

Ans 3:

Deeksha Mittal from JAYPEE PUBLIC SCHOOL, NOIDA, NOIDA
Class : Class 6
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb

Ans 4: (Master Answer)

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

Ans 5:

Aviral Yadu from Krishna Public School Dunda Raipur, Raipur
Class : Class 9
correct answer B

Ans 6:

Pitchairaj Bhuvaneswari from CS Academy, Erode
Class : Class 9

Ans 7:

Dhruv Singh from VIBGYOR HIGH HORAMAVU, BANGALORE
Class : Class 9

Post Your Answer

Dev Rawat from R D Rajpal School, New Delhi
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

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

Ans 2:

Samriddha from St Paul's academy, Kolkata
Class : Class 7
3 and 2 should be interchanged

Ans 3:

Tviesha Dayalani from Bhavans' Rajaji Vidyashram, chennai
Class : Class 8

Ans 4:

PRISHA WAGH from G D SOMANI MEMORIAL SCHOOL, MUMBAI
Class : Class 7
3 and 2 shud be interchanged

Ans 5:

Upanshu Nayak from ITL PUBLIC School, New Delhi
Class : Class 7
Kindly Explain your answer Admin.

Ans 6:

Arnav Ranka from Gyan Bharati School, Saket, New Delhi
Class : Class 9
3 and 2 should be interchanged.

Ans 7:

Ujas Singh from Rajiv International School, Mathura
Class : Class 7

Ans 8:

Samadrita Ghosh from BDMI, Kolkata
Class : Class 8

Ans 9:

Dhriti Das from K.R. Mangalam World School, Faridabad
Class : Class 5

Ans 10:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7

Ans 11:

Devavrat Sharma from Podar International School Powai, Mumbai
Class : Class 7
Answer is B as neutral solutions cannot be identified

Ans 12:

sankalp from Gyan Bharti School, Saket, Delhi
Class : Class 10
3 and 2 should be interchanged, Sir

Ans 13:

Shubham Ashish Kulkarni from APEEJAY PITAMPURA, DELHI
Class : Class 8
Venn diagram shows proportion of acid and base to be equal for 3 i.e. salt then how can you say china rose indicator will turn green i.e. salt is basic in nature, i.e. 3rd part of option D which is correct as per admin. Please clarify..

Ans 14:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7
Actually venn diagram shows the propertied of the substances, not the substances themselves. So, it should be D. Admin is right.

Ans 15:

Mehaan Bhatt from Pawar Public School , Mumbai
Class : Class 6
3 cannot be the answer

Ans 16:

Mehaan Bhatt from Pawar Public School , Mumbai
Class : Class 6
I mean D

Ans 17:

Tviesha Dayalani from Bhavans' Rajaji Vidyashram, chennai
Class : Class 8

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FALAAH.QIDWAI from DPSN, NOIDA
Subject :NSO    Class : Class 1

Ans 1:

FALAAH.QIDWAI from DPSN, NOIDA
Class : Class 1
the answer is wrong

Ans 2:

Snehan Das from DPS north, bangalore
Class : Class 1
The answer is option B as the monkey's child is called an infant.

Ans 3:

Abhinha Ajay Ovhal from Podar International School, Latur
Class : Class 7
A

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Mayank Gupta from Kulachi Hansraj Model School, New Delhi
Subject :NSO    Class : Class 7

Ans 1:

Hridhay Kanodia from WelhamBoysSchool, Bathinda
Class : Class 7

Ans 2:

Adesh Bharti from Venkateshwar Internation School, New Delhi
Class : Class 7
I also agree on Saara's answer and explanation

Ans 3:

Saara Engineer from R.N.Podar school, Mumbai
Class : Class 6
C. This is because when we need to breathe in the ribcage moves up and outwards and diaphragm moves down. This movement increases the pressure outside as compared to inside and air rushes in. During exhalation the ribcage moves down and the diaphragm moves upwards. This increases the pressure inside the body as compared to the lower pressure outside and the air is pumped out of the body. THE ASWER IS TECNICALLY (C) BUT THE QUESTION IS WRONG. IN THE NSO WORKBOOK THE QUESTION IS ASKED FOR THE MOVEMENT OF RIBCAGE AND DIAPRAGM WHEN WE BREATHE IN AIR. THIS IS A TECHINAL ERROR IN SOFOLYMPIAD TRAINER.

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Mayank Gupta from Kulachi Hansraj Model School, New Delhi
Subject :NSO    Class : Class 7

Ans 1:

Saanvi from Dehli Public School , Gurugram
Class : Class 4
Why not Tornaedoes?

Ans 2:

RIYA D MARGHADE from TVS VELAMMAL VIDYALAYA PONNERI, CHENNAI, CHENNAI
Class : Class 3
If the answer is thunderstorm, then how are tornadoes made?

Ans 3: (Master Answer)

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

Ans 4:

Daksh from RKC, Rajkot
Class : Class 8
Both tornadoes and thunderstorms are developed in hot and humid areas

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Keerthana from FAIPS, Chennai
Subject :NSO    Class : Class 6

Ans 1:

Shreyansh thapak from ECS bagless School , Gwalior
Class : Class 7
45° because he is facing north

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ISHI.GUPTA from dps noida, Noida
Subject :NSO    Class : Class 3

Ans 1:

Aarathy Sudhir Aarav Sudhir from Global Indian International School, Abu Dhabi
Class : Class 7
hia answer

Ans 2:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4

Ans 3:

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

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is A. The image in g is a sign of a well.

Ans 5:

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

Ans 6:

Havi Jain from GEMS modern academy, Gurgaon
Class : Class 8
Option (A) is the correct answer.

Ans 7:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4

Ans 8:

Shaarvi Pant from Greenwood High, Bangalore
Class : Class 3
(A) is correct.

Ans 9:

Gaurika Bhasin from Genesis global school, Noida
Class : Class 2
A

Ans 10:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

Ans 11:

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

Ans 12:

Kashika Goel from DPS Noida, Noida
Class : Class 8

Ans 13:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4
g is a sign of well

Ans 14:

Santina Suzanne from owis, bangalore
Class : Class 4
d is correct

Ans 15:

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

Ans 16:

Gaurika Bhasin from Genesis global school, Noida
Class : Class 2
https://www.sofolympiadtrainer.com/revisewise/questions/nso3_ch5_transportcommunication_2017/images//img_sol7.jpg

Ans 17:

Gaurika Bhasin from Genesis global school, Noida
Class : Class 2
A is the correct answer

Ans 18:

HANAN FAISAL from GLOBAL INDIAN INTERNATIONAL SCHOOL, Abudhabi UAE
Class : Class 4
Option a. is the correct answer.

Ans 19:

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

Ans 20:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9

Ans 21:

Aarathy Sudhir Aarav Sudhir from Global Indian International School, Abu Dhabi
Class : Class 7
option a question is a little tricky

Ans 22:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

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ISHI.GUPTA from dps noida, Noida
Subject :NSO    Class : Class 3

Ans 1:

Nivedha from Greenwood High, Bengaluru
Class : Class 3
It is not a either.

Ans 2:

Avik Arya from Trileaves Global school , Chennai
Class : Class 3

Ans 3:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5
this will be ans c as it carries police and criminals

Ans 4:

Hamzah from DPS Dubai, Dubai
Class : Class 10

Ans 5:

Nivedha from Greenwood High, Bengaluru
Class : Class 3
I said it is not c or b!

Ans 6:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

Ans 7:

Armaan Chatterjee from Tagore International, New Delhi
Class : Class 3
akhirkar maine ye karnaba kar ke dikha diya! ha! ha! ha!

Ans 8:

AaradhyaPatel from Delhi Public School, Korba
Class : Class 3
Radio,newspapers and television are Means of mass communication so answer will be D not C or B

Ans 9:

Nivedha from Greenwood High, Bengaluru
Class : Class 3
Ans d.

Ans 10:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 8
Armaan maine bhe

Ans 11:

nandini from father agnel school, Noida
Class : Class 7
becase it is not a source of online

Ans 12:

Nivedha from Greenwood High, Bengaluru
Class : Class 3
Definitely it is not c or b it is d

Ans 13:

Yatharth Srivastav from National Public School, Bangalore
Class : Class 8

Ans 14:

Avighna Shastri from doha modern indian school, doha
Class : Class 2
answer should be B

Ans 15:

Nivedha from Greenwood High, Bengaluru
Class : Class 3

Ans 16:

AaradhyaPatel from Delhi Public School, Korba
Class : Class 3
Answer is d not c and b

Ans 17:

Ram Prasanna from Basil Woods International, Hyderabad
Class : Class 3
Answer: b

Ans 18:

Yatharth Srivastav from National Public School, Bangalore
Class : Class 8
it is b

Ans 19:

Asmi Raniga from Indian school Ghubra, Muscat
Class : Class 7

Ans 20:

Avighna Shastri from doha modern indian school, doha
Class : Class 2

Post Your Answer

AAYMAN.AAMIR from DPS Noida, Noida
Subject :NSO    Class : Class 2

Ans 1:

Manit Aggarwal from St. Patricks Academy Bengaluru, Bangalore
Class : Class 8
b is the answer Aayman

Ans 2:

PRAGWANSH JENA from DELHI PUBLIC SCHOOL, Raipur
Class : Class 8
how it will be revolution ?????

Ans 3:

S.R.POORNA from Padma Seshadri Bala Bhavan Senior Secondary School, Chennai
Class : Class 2
A

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AAYMAN.AAMIR from DPS Noida, Noida
Subject :NSO    Class : Class 2

Ans 1:

Manit Aggarwal from St. Patricks Academy Bengaluru, Bangalore
Class : Class 8
D is the answer

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