National Science Olympiad Forum By SOF Olympiad Trainer - Page 357
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Nivy from Anan International School, Coimbatore
Subject :NSO    Class : Class 6

Ans 1:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
I think density of paint is less than density of water (0.9 : 1.0 g/cm3 ratio )

Ans 2:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 9

Ans 3:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
Oh actually it does sorry for asking wrong doubt

Ans 4:

SJ HARITHA from PSNLO, BENGALURU
Class : Class 10

Ans 5:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 9
Does paint float on water? Actually it sinks right?

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Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Subject :NSO    Class : Class 4

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Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Subject :NSO    Class : Class 4

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Karthik from Euro, Bengaluru
Subject :NSO    Class : Class 2

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Navyaa Kalra from DPS Noida, NOIDA
Subject :NSO    Class : Class 5

Ans 1:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
aiaiyooo !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 2:

Suvan S from Edify School Chikkabanavara, Bangalore
Class : Class 7
oh this is very very very very very easy! correct option is c

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Karthik from Euro, Bengaluru
Subject :NSO    Class : Class 2

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Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 7

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Shiven Dinkar from DPS Noida, Delhi
Subject :NSO    Class : Class 4

Ans 1:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Yes Ashmi ,you are right.One should know the boiling point and freezing point if that person has qualified for level 2.This is so easy-peasy.You can even search on the Google.You will see that me and Ashmi are correct.It is not that you know or not, it is that you should know.And even if you did know, then it is about applying your knowledge at the right place.Also you should know that when we boil water, the water becomes lesser.If you knew both the things then you must have thought that 'B' and 'D' are the same.It happens with me too.I also think the answer should be option 'B'.

Ans 2:

Ryan from YBIS , SINGAPORE
Class : Class 5

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Ashmi and Mohhika are are right . If the person has qualified for level 2 then he / she should know the boiling and freezing point of water . If you don't know the boiling and freezing point of water you can also search it in Google and get some more information about this topic . Then you can clearly see that Me , Mohhnika and Ashmi are correct . If you say that A and B are same , then you are wrong because when water boils some of that water evaporates .

Ans 4:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Boiling point is 100 Degree Celsius C and D are eliminated and if he heats it for 15 min level should be less than 100 ml so A is eliminated so answer is B Don't you know boiling point and freezing point? Boiling point 100 degree celsius Freezing point 0 degree celsius so easy search on google

Ans 5:

Ryan from YBIS , SINGAPORE
Class : Class 5

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Iraj Singh from DPS Megacity, Kolkata
Subject :NSO    Class : Class 3

Ans 1:

Santina Suzanne from owis, bangalore
Class : Class 4
answer should be c

Ans 2:

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

Ans 3:

Shruti from ,
Class : Class 1
d d d dundun daaaaaaaaaaaaaaaa

Ans 4:

Ashlynn Bhatia from Modern Vidya Niketan Sr. Secondary School Sector - 17, FARIDABAD
Class : Class 4
Advait don't boast about yourself

Ans 5:

ADVAY BANSAL from LOTUS VALLEY INTERNATIONAL SCHOOL GURUGRAM, GURUGRAM
Class : Class 6
ITS D BECAUSE OF IN B ITS 2 NOT CORECT OOPS THAT WAS CLOSE

Ans 6:

AaradhyaPatel from Delhi Public School, Korba
Class : Class 3
Yay answer is D

Ans 7:

Advait from VIdyamandir, Palanpur
Class : Class 3
I am smart

Ans 8:

Aditri Dixit from TCIS, Bangalore
Class : Class 3

Ans 9:

Suchismita Rout from Kendriya Vidyalaya No.1, Mumbai
Class : Class 4
ans 4 :

Ans 10:

Kashika Goel from DPS Noida, Noida
Class : Class 7

Ans 11:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
It is D only.

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Shiven Dinkar from DPS Noida, Delhi
Subject :NSO    Class : Class 4

Ans 1:

Sashrika Pasunoori from KV Gachibowli, Hyderabad
Class : Class 5
I don't have explanation but answer is C

Ans 2:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Admin , all know the answer . But can give the explanation , you always write the answer only

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C


Ans 4:

Adithya Sathyanarayanan from Chennai Public School, Chennai
Class : Class 6

Ans 5:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
C

Ans 6:

Samridh from DelhiPublicSchoolBangloreNorthCambridgeInternational, banglore
Class : Class 6
c

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