National Science Olympiad Forum By SOF Olympiad Trainer - Page 634
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Sanjeev Garg from Assumption Convent School, malout
Subject :NSO    Class : Class 5

Ans 1:

Koustavi Chakraborty from DELHI PUBLIC SCHOOL, PUNE
Class : Class 5
ANSWER IS B

Ans 2:

Biju Pappachan from Rkc , Raipur
Class : Class 1
Answer 7 and 9 are right the correct ans is B.

Ans 3:

Swarnava Pal from Vivekananda Mission School, Haldia
Class : Class 8
The salmon travels from sea to river to lay eggs .

Ans 4:

Mannan from Sherwood High, Bengaluru
Class : Class 7
ans 7 and 8 are useless and utter nonsense

Ans 5:

Sohan Chelekar from Millennium National School, Pune
Class : Class 7
correct answer is b

Ans 6:

swayam from bgs nps, bangalore
Class : Class 5

Ans 7:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
ans 3 7 13 utter nonsense

Ans 8:

Aaryan Meenakshi Sundaram from NPS International School, Singapore
Class : Class 6

Ans 9:

Yashasvika from Euro World School, Sri Ganganagar
Class : Class 5
the answer is b but i have written a

Ans 10:

Mrigank Roy from Delhi Public School Ghaziabad, Ghaziabad
Class : Class 10
Number (i) should be Arctic to Antarctic during winters

Ans 11:

Akanksha Mohapatro from DPS Bangalore North, Bangalore
Class : Class 5

Ans 12:

Niranjhan Rajeshkumar from Deens Academy, Whitefield, Bengaluru
Class : Class 8
The answer is evidently wrong as it tells that salmons migrate to the "sea ", not rivers.

Ans 13:

Mohhika Sharma from Delhi Public School Greater Noida, Noida
Class : Class 5
IT should be 'C'! How's it B?

Ans 14:

Jinisha Mahajan from Delhi Public School Jalandhar , Jalandhar
Class : Class 5

Ans 15:

Ishaan singhal from CCWS, Jaipur
Class : Class 3
yes its b because siberian crane comes to india in october that is winter and goes from india in march to april that is summer and we go bharatpur and see it in summers

Ans 16:

Mrigank Roy from Delhi Public School Ghaziabad, Ghaziabad
Class : Class 10
The question is wrong. The option says that salmon travels long distances to reach sea and lay eggs

Ans 17:

AARNA Kapse from The swaminarayan school, Nagpur
Class : Class 7

Post Your Answer

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

from ,
Class : Class 5
i think so it should be a

Ans 5:

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

Ans 6:

Ashwak from Cambridge, Jalandhar
Class : Class 9
* * The answer A only * *

Ans 7:

Archit Das from NPS, Singapore
Class : Class 6
A as it is going the fastest at point w

Ans 8:

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

Ans 9:

Bhavinkumar Gosai from The New Tulip International School, Ahmedabad
Class : Class 4
Somesh take a chill pill bro Adwika is still learning and so are u and don't be rude to everyone

Ans 10:

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

Ans 11:

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

Ans 12:

DEVAANGANA SARDAR from G.D. Birla Centre for Education, Kolkata
Class : Class 7
dont talk like somesh

Ans 13:

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

Ans 14:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 9
I agreecorrect answer is A

Ans 15:

somesh from Centre point katol road, Nagpur
Class : Class 6
You are foolish adwika

Ans 16:

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

Ans 17:

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

Ans 18:

RC from Vibgyor, Navi Mumbai
Class : Class 8
the answer is C they said INCORRECT statement

Ans 19:

Aarya Ranjan from Chrysalis High Varthur, bangalore
Class : Class 5
a

Ans 20:

Hamzah Inamdar from SHARDA ENGLISH SCHOOL KAIJ DIST BEED, KAIJ
Class : Class 4
Can anyone explain the correct answer A??

Ans 21:

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

Ans 22:

Aarya Ranjan from Chrysalis High Varthur, bangalore
Class : Class 5
a

Ans 23:

Bhavinkumar Gosai from The New Tulip International School, Ahmedabad
Class : Class 4
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC

Ans 24:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5

Ans 25:

SRISANTH from Edify, Tirupathi
Class : Class 5

Ans 26:

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

Ans 27: (Master Answer)

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

Ans 28:

Gopal Rohit Soni from ,
Class : Class 4

Ans 29:

anu from Haralur, Bengaluru
Class : Class 5
ih8s

Ans 30:

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

Ans 31:

DEVAANGANA SARDAR from G.D. Birla Centre for Education, Kolkata
Class : Class 7

Ans 32:

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

Ans 33:

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

Ans 34:

Hamzah Inamdar from SHARDA ENGLISH SCHOOL KAIJ DIST BEED, KAIJ
Class : Class 4

Post Your Answer

palak kumari from little flower school, odisha
Subject :NSO    Class : Class 3

Post Your Answer

rishi karthik from Bvm Global, chennai
Subject :NSO    Class : Class 5

Ans 1:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5
I by mistake marked D the correct option is c

Ans 2:

Pratham Dave from GNS, Bangalore
Class : Class 7

Ans 3:

Jinisha Mahajan from Delhi Public School Jalandhar , Jalandhar
Class : Class 5
Answer will be option C as the dots are dust particles only

Ans 4:

Diva wahgmare from Podar learn school, Pusad
Class : Class 5
B

Ans 5:

Arjun Gourineni from CHIREC International School, Hyderabad
Class : Class 7

Ans 6:

Arnav kaul from Chirec, Hyderabad
Class : Class 2

Post Your Answer

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Subject :NSO    Class : Class 4

Ans 1:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 6

Ans 2:

Kishore Kadiyala from NPS, BANGALORE
Class : Class 5
the correct answer is c because premolars and molars are a set of permanent teeth only.

Ans 3:

Kishore Kadiyala from NPS, BANGALORE
Class : Class 5
the correct answer is c

Ans 4:

Navvi Maya KPR from Sacred Heart Matriculation Higher Secondary School, Chennai
Class : Class 7
C is the correct answer because the solution is like that. So i think it is the correct one !

Ans 5:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
I agree with the solution given. Anand is right as a tooth also includes dentine as well as enamel. If it would have been,'The covering of a tooth is dentine.',it was wrong. Bhavya Jain check the solution.

Ans 6:

Ryan from YBIS , SINGAPORE
Class : Class 5

Ans 7:

Bhavya Jain from K R Mangalam World Scholl, GHAZIABAD
Class : Class 4
ans is B

Ans 8:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7

Ans 9:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
Answer: option C

Ans 10:

Shivangi Shivu Singh from Pawar Public School Chandivili , Mumbai
Class : Class 7

Ans 11:

Aaditya Saxena from Ryan International School Pune, Pune
Class : Class 6
Look here there is some problem. The correct answer is not there. Amrit is right. but all are not wrong. Anand and Rajesh are wrong. So, the correct answer will be E (which is not there actually. I made it myself because the correct answer was not there.) Rajesh and Anand.

Ans 12:

Hitanshi Behera from Loyola School , Bhubaneswar
Class : Class 4
teeth are made of tough material called enamel .

Ans 13:

Bk Tiwari from S.D.A, Surat
Class : Class 9
why c

Ans 14:

Amrit Priyadarshi from kanakia International School , Mumbai
Class : Class 6
the answer is not A nor B,C or D

Ans 15:

Daksh Chanani from Sri Sri academy, Kolkata
Class : Class 7
Digestion of food takes place in small intestine whereas absorption of water from remaining undigested food takes place in large intestine. Premolars and few molars are not present in milk teeth set.

Ans 16: (Master Answer)

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

Ans 17:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
i do not understand it

Ans 18:

PARTH PANCHAL from NEW HORIZON SCHOLARS SCHOOL, THANE
Class : Class 7
lllllllllllllllllllllllllllllllllllllllll

Ans 19:

Aarathy Sudhir Aarav Sudhir from Global Indian International School, Abu Dhabi
Class : Class 7
Rajesh and Anand are wrong I emphasis more about Anand because the tough material in the teeth is it's enamel not the dentine.

Ans 20:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5

Ans 21:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 9
c easy

Ans 22:

Tashvika from JHS, Bangalore
Class : Class 4
All are wrong

Ans 23:

PARTH PANCHAL from NEW HORIZON SCHOLARS SCHOOL, THANE
Class : Class 7
nknnnk

Ans 24:

Punyatoya from Harvest, Bengaluru
Class : Class 8
All the teeth have root,crown,neck but their SHAPE is different so Anand is correct.

Ans 25:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8
I think the question is wronghow can digestion occur if there is no small intestine? so ans is D

Ans 26:

A Venkata Sai Pranav from Podar International School, Bhusawal
Class : Class 9
all are wrong

Ans 27:

Amrit Priyadarshi from kanakia International School , Mumbai
Class : Class 6
Everyone's statements look wrong but the option is not there . Correct answer- {E} all are wrong

Post Your Answer

Subhra from Zps, Tamluk
Subject :NSO    Class : Class 3

Ans 1:

SAI KRISHNA from SHISHYA BEML PUBLIC SCHOOL, BANGALORE
Class : Class 3
The answer should be A

Ans 2:

Shruti from ,
Class : Class 1
d not a

Ans 3:

Bhavinkumar Gosai from The New Tulip International School, Ahmedabad
Class : Class 4
Answer is D

Ans 4:

Anagh Agrawal from Billabong high, JABALPUR
Class : Class 3

Ans 5:

Havi Jain from GEMS modern academy, Gurgaon
Class : Class 8
oops (D)

Ans 6:

SS from meridian, hyderabad
Class : Class 5
ohh

Ans 7:

SONAM BARAI from DAV PUBLIC SCHOOL, sambalpur
Class : Class 5
D

Ans 8:

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

Ans 9:

Bhavinkumar Gosai from The New Tulip International School, Ahmedabad
Class : Class 4
wronggggggggggggggggggggggggg

Post Your Answer

Riddhiman Bose from Don Bosco School, Kolkata
Subject :NSO    Class : Class 3

Ans 1:

Nivedha from Greenwood High, Bengaluru
Class : Class 3
Oh thank you so much!!!!!!

Ans 2:

SONAM BARAI from DAV PUBLIC SCHOOL, sambalpur
Class : Class 5
C

Ans 3:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5
In my exam I made the same mistake!!!!

Ans 4:

S Malhotra from SFS , New Delhi
Class : Class 5

Ans 5:

SHAUNAK from St Xaviers School, HAZARIBAG
Class : Class 3
C is the right answer.

Ans 6:

Nivedha from Greenwood High, Bengaluru
Class : Class 3
What about frosted glass? That doesn’t cast a shadow!!! It casts a light kind of thing!!!!

Post Your Answer

Riddhiman Bose from Don Bosco School, Kolkata
Subject :NSO    Class : Class 3

Ans 1:

Samik Praveen from Euro School Airoli, Mumbai
Class : Class 6
I caould not even see the full question

Ans 2:

Rishit Garg from Bhavan s B P Vidya Mandir , Nagpur
Class : Class 9
answer should option c as moons between earth and sun so it means z is between x and y

Ans 3:

Vihaan kohli from MVN Aravali, Faridabad
Class : Class 3
b

Ans 4:

Ritwika Biswas from KV no 1 , Goa
Class : Class 7
vvvvdtryvvdfsdt,

Ans 5:

samarth kshatriya from delhi public school,bhilai, bhilai
Class : Class 3
the correct answer is B

Ans 6:

samarth kshatriya from delhi public school,bhilai, bhilai
Class : Class 3
class-3

Ans 7:

SONAM BARAI from DAV PUBLIC SCHOOL, sambalpur
Class : Class 5
B

Ans 8:

Arnav Vashisth from GD GOENKA PUBLIC SCHOOL, Delhi
Class : Class 5
Nnnnnjnjnjnnjkjnknbhbjnnbnbnb

Ans 9:

Shrihan Raul from GIIS SINGAPORE, Singapore
Class : Class 5
its b because the earth or the sun can be x or y and moon is z

Post Your Answer

Riddhiman Bose from Don Bosco School, Kolkata
Subject :NSO    Class : Class 3

Ans 1:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Yes , Ursa Major resembles the Great Bear , Leo ; lion ,Orion ; hunter and Scorpius; scorpion .

Ans 2:

Senaraj Chintagumpala from Delhi Public School East, Bangalore
Class : Class 3
ursa major means the great hunter

Ans 3:

Santina Suzanne from owis, bangalore
Class : Class 3
b

Ans 4:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5
rteweewwwwwwwwwwwww

Ans 5:

Dyanesh from Lakshmi School, Madurai
Class : Class 5

Ans 6:

Anargha Nandi from Bishop Morrow School, Krishnagar
Class : Class 6
Ans: Orion is a constellation that resembles a hunter.

Ans 7:

Vartika kumar from D P S Newtown, Kolkata
Class : Class 8

Post Your Answer

KRITHIGHA SHRI M P from KAMALA NIKETAN MONTESSORI SCHOOL, TRICHIRAPPALLI
Subject :NSO    Class : Class 6

Ans 1:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 2:

malhar thorve from city internqtional school, satara road, pune
Class : Class 7
the observer cannot see S because Q is blocking the view and the observer cannot see R because of the opaque wall hence B is the correct answer

Ans 3:

arvin from KC INTERNATIONAL SCHOOL JAMMU, Jammu
Class : Class 7
C is correct

Ans 4:

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

Ans 5:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8

Ans 6:

Yashraj from pps, pune
Class : Class 6
the solution says c

Ans 7:

amogh from DELHI PUBLIC SCHOOL NOIDA, Ghaziabad
Class : Class 6
ANSWER IS B

Ans 8:

Satwik Dixit from Christ Academy, Bangalore
Class : Class 7

Ans 9:

Ayush Yadav from Salwan Public School, Gurgaon
Class : Class 6

Ans 10:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
b

Ans 11:

Piyush M from Somerville School, Delhi, Delhi
Class : Class 7

Ans 12:

NORA SUSAN RIBU from PSBB, SIRUSERI
Class : Class 6

Ans 13:

Sof Team from Sof Olympiad Trainer Helpdesk, Bangalore
Class : Class 7
i am inveitable

Ans 14:

Sucheta from Podar, Pune
Class : Class 8

Ans 15:

Veda Dua from Delhi Public School, R. K. Puram, New Delhi
Class : Class 10

Post Your Answer