National Science Olympiad Forum By SOF Olympiad Trainer - Page 623
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Sumayah from Strawberry Fields High School, Chandigarh
Subject :NSO    Class : Class 4

Ans 1:

Shagun from MAXFORT DWARKA, New Delhi
Class : Class 5
c- 7/6

Post Your Answer

KISHORE KUMAR E from MAHARISHI INTERNATIONAL RESIDENTIAL SCHOOL, SUNGUVARCHATHIRAM
Subject :NSO    Class : Class 8

Ans 1:

Govind Garg from Unknown, MORENA
Class : Class 8
It should be 3 because human ear can hear 20 hz to 20 khz

Ans 2:

Govind Garg from Unknown, MORENA
Class : Class 8
Sorry it should be 1

Ans 3:

ALEN from MODEL SCHOOL, ROHTAK
Class : Class 8
It should be 3

Ans 4:

Mayank Mishra from Greenfields Public School, Delhi
Class : Class 8
it should be 3

Ans 5:

ALEN from MODEL SCHOOL, Rohtak
Class : Class 8
It should be 3 😡😡

Ans 6:

Rifa Khan from Rps public school , Bhiwadi
Class : Class 10
Yes the answer should be 3 because human's Audible range is fron 20HZ TO 20KHZ.And here10 khz,0.1 khz and 1 khz comes Under this but not 100khzThanks.

Ans 7:

Rifa Khan from Rps public school , Bhiwadi
Class : Class 10

Ans 8: (Master Answer)

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

Ans 9:

Bhavesh Bhagat from Podar International School Kalyan, Kaylan
Class : Class 10
It should be 3

Ans 10:

Aditya Pisipati from Vikas The concept school, Hyderabad
Class : Class 8
The answer should be 3 because humans can hear sounds ranging from 20 Hz to 20,000 Hz.

Post Your Answer

SAANVI.SHUKLA from DELHI PUBLIC SCHOOL, NOIDA
Subject :NSO    Class : Class 2

Ans 1:

SHIVEN.DINKAR from Delhi Public School, Noida
Class : Class 2
D

Post Your Answer

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

Ans 1:

Hritvi from Podar International School, Mumbai
Class : Class 7
the answer is A. If you heat a system then that is obvious that its temperature will rise, how can it remain the same when it is heated up. if SOF Olympiad says the answer is C then it has to give a better solution with more examples so that we can understand it better.

Ans 2:

SARTHAK SHRESTHA from DPS RUBY PARK, KOLKATA
Class : Class 7
latent heat property

Ans 3:

Suchita A from PSBB Millennium, Gerugambakkam, Chennai
Class : Class 7
its A!!

Ans 4:

Agriye Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Class : Class 8
I THINK THE ANSWER SHOULD BE D

Post Your Answer

Yeasvith Vema from TMS, Gurgaon
Subject :NSO    Class : Class 2

Ans 1:

Anshul Sameer Darne from Ryan International School, Masdar
Class : Class 6
heart because you said no organ will get blood....

Post Your Answer

from DPS, Hyderabad
Subject :NSO    Class : Class 5

Jai drew a graph which represented the amount of undigested food in different parts of our alimentary canal, during the process of digestion of a meal. The variables V to Z represent the organs of alimentary canal from mouth to anus.
Select the correct option regarding this.



AThe amount of undigested food should be zero at Z because digestion is completed before the food reaches anus.
BThe amount of undigested food at X and W should be interchanged because there is no digestion in oesophagus.
CA decrease in the amount of undigested food should be first observed in Y only because intestine is the primary site of digestion.
DBoth A and B


Ans 1:

from GIIS,
Class : Class 4
B is the correct answer

Ans 2:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
(A)

Ans 3:

Arnav Ajit Surwade from Aaryans World School, Bhilarewadi Pune
Class : Class 3

Ans 4:

Kenisha Tamboli from Mansukhbhai Kothari National School, Pune
Class : Class 6

Post Your Answer

Sahasra Shanker from KV IIT, Chennai
Subject :NSO    Class : Class 6

Ans 1:

PAYAL from DPS BHILAI, BHILAI
Class : Class 8
Yes, it will be option no. A.👍

Ans 2:

Akshara from sishya OMR , chennai
Class : Class 8

Ans 3:

Vasudev Krishna from Indian School Al Ghubrah, Muscat
Class : Class 7

Ans 4:

Ritabrata Das from OPJS, Angul
Class : Class 7
PQ shows the time taken by the ice to melt into water. Here, the temperature is steady – at 0°C. QR shows the time taken by the melted water to heat up and reach boiling point. Here, the temperature rises to boiling point – from 0°C to 100°C. RS shows the time taken by the water to evaporate. Here again, the temperature is steady – at 100°C. Part PQ shows melting of ice.Hence, the right answer is Option A.

Ans 5:

Vasudev Krishna from Indian School Al Ghubrah, Muscat
Class : Class 7

Ans 6:

SRIRAM SRINIVASAN PAKU from KENDRIYA VIDHALAYA ASHOK NAGAR, CHENNAI
Class : Class 6
thks ribirta

Post Your Answer

Daksh Jain from Deens Academy, Bangalore
Subject :NSO    Class : Class 1

Ans 1:

preethikha.s from C.S.Academy, Coimbatore
Class : Class 1
Its A..Jaya only

Ans 2:

Varnit khurana from Saint kabir school, Hissar
Class : Class 7
It's option A.

Post Your Answer

SRINJAYI CHOWDHURY from Ashok Hall Girls Higher Secondary School, Kolkata
Subject :NSO    Class : Class 8

Ans 1:

SRINJAYI CHOWDHURY from Ashok Hall Girls Higher Secondary School, Kolkata
Class : Class 10
Kindly give me the reasoning of the pattern.

Ans 2:

Anushka Singh from Uttam Girls School, Ghaziabad
Class : Class 9
The answer is Option C that is 255 The difference from 3 to 7 is 4. The different from 7 to 15 is 8. The difference from 15 to 31 is 16. The difference from 31 to 63 is 32. The observation if 4 X 2 = 8, 8 X 2 = 16. Like wise, we can find next ones also. Only 5 are given and we have to find the 7th one. So, let is first find the 6th one. 32 X 2 = 64. So, 63 + 64 = 127. The 6th number is 127. Now, we have to find the 7th one. 64 X 2 = 128. 127 + 128 = 255. That is Option C

Post Your Answer

Soham Gupta from JSSIS Dubai, Dubai
Subject :NSO    Class : Class 4

Ans 1:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
Sorry.Answer will be C because I can find the triangles on the top right side of the boat,second on the top left side of the boat,third and fourth triangles under the top left side triangle and fifth triangle under the bottom left side triangle.

Ans 2:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
And the sixth triangle by mixing two bottom left side triangles.

Ans 3:

Arshya from KV Meenambakkam, Chennai
Class : Class 7

Ans 4:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
And the sixth triangle by mixing two bottom left side triangles.

Ans 5:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
And the sixth triangle by mixing two bottom left side triangles.

Ans 6:

Jordan Cole from NCS Arakkonam, Arakkonam
Class : Class 3
answer is 6

Ans 7:

AREEN from BOLTON SCHOOL, Secunderabad
Class : Class 5
D

Ans 8:

Raunak mache from Kendriya vidyalay, Pune
Class : Class 4
B

Ans 9:

Shagun from MAXFORT DWARKA, New Delhi
Class : Class 5
c - 6

Post Your Answer