National Science Olympiad Forum By SOF Olympiad Trainer - Page 384
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Lakshya Methwani from Mount Litera Zee School, Gandhidham
Subject :NSO    Class : Class 3

Ans 1:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
Answer is C

Ans 2:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
Answer is A

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arnav from the gurukul, Panchkula
Subject :NSO    Class : Class 8

Ans 1:

Arpit Pandey from Rosary Camp, Pune
Class : Class 8
A&d

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Anjaneya Raj Garg from Study Hall, Lucknow
Subject :NSO    Class : Class 9

Ans 1:

Shreyas V Poojary from Sri Sri Ravishankar Vidya Mandir , Bangalore
Class : Class 9
doesnt sound travel faster in solids than in liquids and in liquids than gas ?isnt the answer A ?

Ans 2:

Dhruvan G from Indian School al Ghubra, Muscat
Class : Class 9

Ans 3:

Tanmay Mehta from Nirmala Convent high school, Renukoot
Class : Class 9
The answer will be (D)

Ans 4:

Aditya Singh from Bright Day School, Vadodara
Class : Class 9
Answer is D as sound velocity is not affected by increase or decrease in pressure if temperature remains constant

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Pranav Rajesh Krishnan from Gems United Indian School, UAE
Subject :NSO    Class : Class 7

Ans 1:

Tejas kaushik from Haryana public school, Narnaul
Class : Class 7
gh

Ans 2:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
B IS THE CORRECT ANSWER.

Ans 3:

Anushka Srivastava from Cjm, Dehradun
Class : Class 7
It should be d

Ans 4:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
You are right, the correct answer is option D

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LEKULE DILIP from pawar public school, PUNE
Subject :NSO    Class : Class 6

Ans 1:

reyansh from Taylors , Kuala Lumpur
Class : Class 6
B can't be an answer because string is a insulator

Ans 2:

Abhishri Dwivedi from gems modern academy , Dubai
Class : Class 6
It can't be (B) because you need wires to connect the circuit.... Hence, the answer is (D).

Ans 3:

Fellah Thashin from MS Dhoni global school , Hosur
Class : Class 6

Ans 4:

Rishon Chandy from KV IIT Powai, Mumbai
Class : Class 7
(b)would be the only one because its a complete circuit and all the materials required ...........The wire is also of proper material

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Derek Jeremy Winkins from SBOA School and Junior College, Chennai
Subject :NSO    Class : Class 6

Ans 1:

Pratheek from Null, Null
Class : Class 4
Option A

Ans 2:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
A

Ans 3:

Pratheek from Null, Null
Class : Class 4
Option A

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Derrick Samuel from St Johns English School and Junior College Besant Nagar, Chennai
Subject :NSO    Class : Class 8

The given diagram shows nitrogen cycle in the ecosystem. P, Q, R, S and T represent different chemical conversion steps in the cycle.

Which process (P - T) is correctly paired with the organism's group performing that step?
I. P is Nitrobacter
II. Q is bacteria symbiotic with plants
III. R is denitrifying bacteria
IV. S is nitrifying bacteria
V. T is nitrogen fixing bacteria, such as Rhizobium or cyanobacteria

AIII, IV and V
BIV and V
CI, III and IV
DIII and IV


Can somebody explain this diagram to me?

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Shirishti Gautam from 7i world school, Gwalior
Subject :NSO    Class : Class 3

Ans 1:

from , Ahmedabad
Class : Class 4
And d Sloping roof at kashmir

Ans 2:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
the answer is d because there is alot of rainfall in jammu and kashmir

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PrasadKev from Narayan, Mumbai
Subject :NSO    Class : Class 3

Ans 1:

from , Ahmedabad
Class : Class 4
Ans b

Ans 2:

Divyanshi Rajashekar from Vidyashilp Academy, Bangalore
Class : Class 7
b option

Ans 3:

from , Ahmedabad
Class : Class 4
Ans b

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ibaad mohammed from karnataka public school, bangalore
Subject :NSO    Class : Class 8

Ans 1:

Kushi V from Jss Public School, bangalore
Class : Class 8
C. 5

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