National Science Olympiad Forum By SOF Olympiad Trainer - Page 354
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Mohammed Kashif Ahamed from Smt Kamalabai Educational Trust, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 2:

Siddhant from Mris, ludhiana
Class : Class 8
c

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C


Ans 4:

Siddhant from Mris, ludhiana
Class : Class 8
c

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AKSHAJ SRIVASTAVA from MOUNT LITERA ZEE SCHOOL, Kanpur
Subject :NSO    Class : Class 8

Ans 1:

Arnav Diwan from F.A.I.P.S Kuwait, Kuwait
Class : Class 10
in the first biggest square there are 4 triangles as we divide it into 4 parts diagonally.

Ans 2:

Dhairya Vinayak from Loyola High School, Patna
Class : Class 8

Ans 3:

AKSHAJ SRIVASTAVA from MOUNT LITERA ZEE SCHOOL, Kanpur
Class : Class 9
how many triangles are there in this figure....correct answer is d

Ans 4:

Student from School, City
Class : Class 8
Why

Ans 5:

Arnav Diwan from F.A.I.P.S Kuwait, Kuwait
Class : Class 10
in the first biggest square there are 4 triangles and then when you see the corners there are again 4 triangles (because of the rhombus) then the 4 triangles in the corner are divided into 2 parts parts so there are total 8 small triangles and now if we divide the square diagonally we will get triangles we can divide it in 4 ways so now in total we have 20. now in bigger the rhombus in the corners of it you can find total 4 triangles. then in the smaller square we have a similar square as the bigger one so again 20. in total there are 20 4 20 = 44 and it is not in answer so it is none of these (d)

Ans 6:

Daksha Swaminathan from Horiozon Scholars and Neo Kids, Mumbai
Class : Class 8

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CHIRAG from JINDAL VIDYA MANDIR, RATNAGIRI
Subject :NSO    Class : Class 9

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S Pooja from Kendriya Vidyalaya No 2 Kalpakkam, Kanchipuram
Subject :NSO    Class : Class 2

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Naitik Jindal from DELHI PUBLIC SCHOOL RK PURAM, DELHI
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

Heart, artery and vein of group X are part of circulatory system. Brain and spinal cord of group Y are part of nervous system while liver is a part of digestive system. Kidney, lung and skin of group Z are part of excretory system. Hence, liver cannot be placed in group Y.


Ans 2:

Aarav Chopra from Springdales School, Pusa Road, New Delhi
Class : Class 8
Heart ,artery and veins as you all know are parts of circulatory system . Thus, there is no odd one out in group X. Brain and spinal cord run your nervous system and liver helps in the digestive system . Kidney , skin and even lungs are part of excretory system so group Z is clear .Thus , option 'C' liver is the odd one out as it cannot be placed in group Y .

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Naveed from shining star public high school , mumbai
Subject :NSO    Class : Class 6

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Ishat from DPS, GURUGRAM
Subject :NSO    Class : Class 8

Ans 1:

Antarik Maity from Bharatiya Vidyabhaban, Kolkata
Class : Class 8
answer should be a.

Ans 2:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
Shouldn't answer be a instead of b

Ans 3:

Akshara from NPS, Bengaluru
Class : Class 8
Answer should be A

Ans 4:

Kaushik Srivatsa H from Bala Vidya Mandir Global, Bangalore
Class : Class 7
The answer is given correctly in the solution but wrong in the answer. Answer should be a.

Ans 5:

Navya Jain from DPS Dwarka, delhi
Class : Class 6
Yes, it should be. It is given in the solution also

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Ishat from DPS, GURUGRAM
Subject :NSO    Class : Class 8

Ans 1:

Pragun goel from Venkateshwar International School, Delhi
Class : Class 8
This is easy

Ans 2:

Karan Oberoi from Amanora School, Pune
Class : Class 8

Ans 3:

Trina from Ganges Valley School, Hyderabad
Class : Class 10

Ans 4:

Zach from Frank Anthony public school, Bangalore
Class : Class 8
i agree man

Ans 5:

Student from School, City
Class : Class 8
On rubbing two sticks together, friction produces heat and this leads to warming until the ignition point of the substance, when it catches fire. As per the options, onrubbing two sticks, *FIRE*produces heat and light and this *PRODUCES FIRE*.

Ans 6:

Navya Jain from DPS Dwarka, delhi
Class : Class 6
yes the answer should be B

Ans 7:

Arnav Diwan from F.A.I.P.S Kuwait, Kuwait
Class : Class 10
Answer should have been both ii and iii but there isn't such an option

Ans 8:

Tejashree Colvalcar from Sharda Mandir School, PANAJI GOA
Class : Class 7
the answer is B because fire is caused due to friction not because it gives ot heat and light energy. Sof , could you please clear my doubt

Ans 9:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
I think the question is talking about friction so look for the points which are related to both heat and friction

Ans 10:

Akshara from NPS, Bengaluru
Class : Class 8
Yes answer should be B...

Ans 11:

Rishabh Singh Rawat from I D D A V Public School, Hisar
Class : Class 8
they are wronganswer is B

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

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Pankaj Rajput from RBK GLOBAL SCHOOL, THANE
Subject :NSO    Class : Class 3

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