National Science Olympiad Forum By SOF Olympiad Trainer - Page 452
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Prashant mishra from Kv Malleshwaram, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

Nila Pillai from Chennai public School, Chennai
Class : Class 6
The answer should be d...

Ans 2:

Derek from Arsha vidya Mandir, Chennai
Class : Class 7
The answer is a this is because we know that cellular respiration is a chemical process as it involves oxidation of food so that statement is wrong. Next statement 2 is also wrong because when anaerobic respiration takes place glucose is broken down into ethyl alcohol carbon dioxide or lactic acid the statement is incomplete hence wrong then statement 4 is wrong because frogs do not have gills.

Ans 3:

kartick Somasundaram from san academy, chennai
Class : Class 1
illa nila. No

Ans 4:

Nila Pillai from Chennai public School, Chennai
Class : Class 6
right?

Ans 5:

Aryam Singh from Palladium School , Hisar
Class : Class 7
answer should be B

Ans 6:

Nila Pillai from Chennai public School, Chennai
Class : Class 6

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Prashant mishra from Kv Malleshwaram, Bengaluru
Subject :NSO    Class : Class 7

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ARCHISHA SIKDAR from CHOITHRAM MANIKBAG, INDORE
Subject :NSO    Class : Class 5

Ans 1:

Anjisha Chakraborty from Mount Litera Zee School, Jabalpur
Class : Class 5
Correct answer - D as Uranus has methane in its atmosphere and Mars has iron dust in the soil

Ans 2:

Mehar from NCS, Vasco
Class : Class 5
D

Ans 3:

Anjisha Chakraborty from Mount Litera Zee School, Jabalpur
Class : Class 5
Correct answer - D as Uranus has methane in its atmosphere and Mars has iron dust in the soil

Ans 4:

Anjisha Chakraborty from Mount Litera Zee School, Jabalpur
Class : Class 5
Correct answer - D as Uranus has methane in its atmosphere and Mars has iron dust in the soil

Ans 5:

Shriya Ghosh from Hariyana vidya mandir , Kolkata
Class : Class 5

Ans 6:

Cheshika batra from Our lady of Fatima convent school, Patiala
Class : Class 5
C

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harsh from saint pauls, jaipur
Subject :NSO    Class : Class 5

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mystic bro7pro from arbor school, Hyderabad
Subject :NSO    Class : Class 5

Ans 1:

Mukta Pundir from ,
Class : Class 7
Guys plz don’t confuse co2 with o2. Also it is c as nitrogen isn’t there. Also d is not ordered correctly

Ans 2:

Cheshika batra from Our lady of Fatima convent school, Patiala
Class : Class 5
B

Ans 3:

Ramya Bn from Ryan International school, Bangalore
Class : Class 6

Ans 4:

Vaibhav Elisetti from sri chaitanya techno school Nallagandla, Hyderabad
Class : Class 7
the ans is B

Ans 5:

Akshansh Sharma from St Kabir Public School, Chandigarh
Class : Class 5
good

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Arpan A Shettihalli from APS Public School, BENGALURU
Subject :NSO    Class : Class 7

Ans 1:

Shreyanka ghosh from Don Bosco Park Circus, Kolkata
Class : Class 9
not clear

Ans 2:

dhairya mittal from vidyashram international school jodhpur, Jodhpur
Class : Class 5
Not clear

Ans 3:

Akshat Ghosh from HXLS, Gurgaon
Class : Class 5

Ans 4:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
I cannot understand it

Ans 5:

Tanushree from Asian International School, Colombo
Class : Class 7
Can someone explain why??🤔

Ans 6:

AISHA from K.V.No.-1,A.F.S.,SEC.-14, GURUGRAM
Class : Class 10
IT IS NOT CLEAR CAN SOMEONE EXPLAIN???

Ans 7:

Sourasis kundu from St.agnes higher secondary School, Kharagpur
Class : Class 6
study more books

Ans 8:

Arpan A Shettihalli from APS Public School, BENGALURU
Class : Class 7

Ans 9:

Shreyansh from KKIS, Singapore
Class : Class 7
cant understand

Ans 10:

Mayank Mili from Delhi Public School, Golaghat
Class : Class 9
answer is D

Ans 11:

Mayank Mili from Delhi Public School, Golaghat
Class : Class 9

Ans 12:

Midhuna from ABCD, Banglore
Class : Class 3
not clear plz explain.aNYbODY hOMe

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indranil batabyal from st michael school, bankura
Subject :NSO    Class : Class 7

Ans 1:

chaitanya gupta from KANHA MAKHAN MILLENIUM SCHOOL, MATHURA
Class : Class 7

Ans 2:

Viraj Chauhan from Air Force Bal Bharati School, New Delhi
Class : Class 7
Here, we can see that there are 4 beakers of same length but different widths. So, we can conclude that the widest beaker (beaker-2) has the most water as it will have biggest volume, and the least wide beaker (beaker-3) has the least water as it will have lower volume. Now, when 100 gm of ice is added to all the beakers, ofcourse the beaker with the least volume will cool down first as heat exchange will be least. Now let's see the statements: A- No, beaker-2 has the most water making bigger heat exchange hence it would take most time to cool down. B- No, there is very less water for heat exchange hence ice will melt very late in beaker-2. C- No, there are different amounts of water in all beakers so this is incorrect. D- Yes, it has the least water hence it will cool down fast and more. Correct answer- D.

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jamuna pandian from TVS matriculation , MADURAI
Subject :NSO    Class : Class 3

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Tejas Kapoor from Vissanji Academy, Mumbai
Subject :NSO    Class : Class 5

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Chandreyee from BGKV, Kolkata
Subject :NSO    Class : Class 10

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