National Science Olympiad Forum By SOF Olympiad Trainer - Page 352
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Dhruvan G from Indian School al Ghubra, Muscat
Subject :NSO    Class : Class 9

Ans 1:

saryu mahajan from ryan international school, greater noida
Class : Class 9

Ans 2:

Yakshita Rathor from Divine Child, Mumbai
Class : Class 9
I cannot understand the solution.

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Saiesh from Sindhi high school, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5
can someone explaini do not understand how the pressure from up or down matters?

Ans 2:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
D D D

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 4:

anu from Haralur, Bengaluru
Class : Class 4

Ans 5:

om from jbcn, MUMBAI
Class : Class 4
D

Ans 6:

Khanak Jha from Prime Academy, Mumbai
Class : Class 4
D

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Shishir singhal from Cambridge Court High school , JAIPUR
Subject :NSO    Class : Class 9

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IAMLOST from ABC, Pune
Subject :NSO    Class : Class 4

Ans 1:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
My sister also says that she had same question just the name was different and she gave same answer and that time too answer was wrong. Now tell me the answer until 19.11.2019

Ans 2:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 7
To SOF New Delhi and Master answer Revisewise Noida I hope you are ready to answer my question once again after you gave different answers in the workbook and the website and I got more than 100 likes for that question and the master answer wasn't giving the answer. So read what I have typed below.Please answer: How does "drilling a hole into a metal sheet" cause friction? Please answer as soon as possible (ASAP).From Ashmi Narkar Grade 4SOF Student Vibgyor High Airoli

Ans 3:

Lamjingrenba Kshetrimayum from Kulachi Hansaraj Model School, North Delhi
Class : Class 4
To Ashmi Narkar-Drilling a hole into a metal sheet cause friction as,because of the friction it is able to drill in the metal sheet and make a hole in it!I hope this helped you!

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Ritabrata Das from OPJS, Angul
Subject :NSO    Class : Class 6

Ans 1:

Aarush Patil from St.Arnold's, pune
Class : Class 1

Ans 2:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Hey, the answer is C only. Because in burning of candle both melting and burning of wax is included right? Ya, so melting of wax is physical change (wax is still wax) and burning of wax is chemical change (wax turns to smoke). And both of these are irreversible. Now see an example. During Diwali we light tea lights, those small, circular candles, right? Have you ever observed it? First the wax melts into liquid wax, then if you don't blow the flame away, the wax burns away! These are CANDLES after all right? So this is how burning of candle is physical, chemical and irreversible change. This answer is written WITHOUT use of any website. Plz consider this as solution. SOF if you could add this as solution could you do that?

Ans 3:

Anushka Wasnik from DPS, nagpur
Class : Class 8

Ans 4:

Lakshmi from FPS, Bangalore
Class : Class 10
it is not C because burning of candle is reversible. I think answer is B

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armaan from bhavan, amritsar
Subject :NSO    Class : Class 5
nso

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Pavan from Kendriya Vidalaya DRDO, Bengaluru
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

hi nandika, how can we help you? as this forum is designed to solve SOF Olympiad related questions/queries, so use this platform to clear your doubts about these topics.

thanks

happy learning.


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Shaurya Veer from Blooming Dales International School, Sri Ganganagar
Subject :NSO    Class : Class 5

Ans 1:

Kanishk Rahul Shabadi from Elpro International school, Pune
Class : Class 5
there is no diagram

Ans 2:

Anika Diljith from Vibgyor High Electronic City, Bangalore
Class : Class 5

Ans 3:

Siddhesh from Indian School Al Wadi Al Kabir, Muscat
Class : Class 5
Diagram is missing in the question

Ans 4:

Ishanvi Bikram from delhi public school, bokaro steel city
Class : Class 5
There is no diagram?

Ans 5:

Aaradhay Awasthi from Dps Vasant Kunj, Delhi
Class : Class 5
I knew that this has a glitch so I reported an error for this question

Ans 6:

Jeisree kk from K.S.N secondary school , Chennai
Class : Class 5
No diagram = No answer as I don't know what's the diagram

Ans 7:

Yukta Jalasutram from Sunrise International School Abu Dhabi, Abu Dhabi
Class : Class 5
No diagrammm???

Ans 8:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7
What IS THIS????????????????

Ans 9:

navya from Gyanshree, Noida
Class : Class 5
Yes, there is no diagram

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ABHIRAM from chirec, HYDERABAD
Subject :NSO    Class : Class 7

Ans 1:

P Eswar Sattwic from Sancta Maria International School, Hyderabad
Class : Class 5
answer is option a

Ans 2:

Sherlock Holmes from Baker Street, London
Class : Class 9
The answer is A - Bacterium, Bacillus anthracis.

Ans 3:

Tanushree from Asian International School, Colombo
Class : Class 7
The answer is A right?🤔🤔

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SHRADHA MOHAPATRA from APEEJAY SCHOOL, New Delhi
Subject :NSO    Class : Class 5

Sania was asked to write about some actions which are voluntary in nature. She has written some involuntary actions too. Pick the involuntary actions written by Sania from the list given below.
(i) Chewing food
(ii) Sitting upright on a table
(iii) Digestion of food
(iv) Beating of heart
(v) Singing a song
(vi) Dancing
(vii) Breathing

A (i), (iii) and (v)
B (iii), (iv) and (vii)
C (ii), (iii) and (vi)
D (v) and (vii)


Ans 1:

Akshat Gajera from Widsom World school,Wakad, Pune
Class : Class 5
Ans-B

Ans 2:

Samanyu from NPSI, Singapore
Class : Class 5

Ans 3:

Aaditya Malhotra from Isaac Newton Global School, Mumbai
Class : Class 3

Ans 4:

Tarun V from National public school, Bangalore
Class : Class 5

Ans 5:

Samanyu from NPSI, Singapore
Class : Class 5
how is digestion involuntary?!

Ans 6:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5
My answer is B

Ans 7:

Samanyu from NPSI, Singapore
Class : Class 5

Ans 8:

sushanthan from null, null
Class : Class 7

Ans 9:

Amaya Prabhu Bhadoria from TSRS Aravali , Gurugram
Class : Class 4

Ans 10:

SHRADHA MOHAPATRA from APEEJAY SCHOOL, New Delhi
Class : Class 5

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