National Science Olympiad Forum By SOF Olympiad Trainer - Page 388
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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 4

Ans 1:

Sourangshu Mallick from GIIS, Singapore
Class : Class 2

Ans 2:

Isha singh from Delhi public school , Raipur
Class : Class 3

Ans 3:

Ishan Manjith from Loyola ICSE, THIRUVANANTHAPURAM
Class : Class 4
Silver fish is not fish dumbosIt is insect it acts like a ground moth it eats fabric

Ans 4:

vineet8026@gmail.com from dps, Doha
Class : Class 1

Ans 5:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6
How come 'Silverfish' has 6 legs?Ankush

Ans 6:

Rishit goyal from St Peter's College, Agra
Class : Class 8

Ans 7:

Manjeer Chakraborty from La Martinierefor Girls,Kolkata, Kolkata
Class : Class 5
Yes silverfish has 6 legs . I think it is an insect not a fish . I checked the google

Ans 8:

Samarth Vijay Yeliathaya from Shri Kumarans Children home,cbse, Bangalore
Class : Class 5
this is crazy

Ans 9:

Archishman Pal from Sri Krishna Mission School, Agartala
Class : Class 9

Ans 10:

vineet8026@gmail.com from dps, Doha
Class : Class 1

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Sarah Ishika Dowerah from Delhi Public School, Numaligarh
Subject :NSO    Class : Class 7

Ans 1:

DIVYA SRIRAM from YUVABHARATHI INTERNATIONAL SCHOOL, SINGAPORE
Class : Class 9
Magnetic separation can only be used in the cases in which one constituent is magnetic and the other is not. In case one Copper is not magnetic and iron is. In the second case Aluminium is not magnetic and Steel is. nIn the third case both the objects gold and the glass marble are non magnetic objects and hence magnetic separation cannot be used in this case. In the last case both Nickel as well as Steel are magnetic and thus magnetic separation cannot be used. So, magnetic separation can only be used in case 1 and case. Hence the answer is A

Ans 2:

Arin Das from Delhi Public School Nacharam, Hyderabad
Class : Class 8
The correct option is answer c Containers 1,2,4

Ans 3:

Shayan Bari from Kendriya Vidyalaya, Katihar
Class : Class 7
It should be 1 and four, the option of which is not given.

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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 4

Ans 1:

MIERA SHARMA from DPS AGRA, AGRA
Class : Class 8

Ans 2:

mishika tripathi from DPS, Gurugram, Haryana
Class : Class 5
ans C

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Sarah Ishika Dowerah from Delhi Public School, Numaligarh
Subject :NSO    Class : Class 7

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Daksh Jain from Deens Academy, Bangalore
Subject :NSO    Class : Class 3

Ans 1:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 8
A

Ans 2:

smithy from ybis, singapore
Class : Class 3
the answer is a

Ans 3:

Ava from trio, bangalore
Class : Class 2
A

Ans 4:

Prisha from Kr mamgalam world school vaishali, Gzb
Class : Class 4

Ans 5:

akshitha from Euroschool, Bengaluru
Class : Class 3
how? A is the correct answer? how?

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ICHALKARANJI from dkte, ichalkranji
Subject :NSO    Class : Class 9

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Daksh Jain from Deens Academy, Bangalore
Subject :NSO    Class : Class 3

Ans 1:

Anushtubh Ashish Sonawane from Blue Ridge Public School, Pune
Class : Class 5
A is correct

Ans 2:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
The correct answer is A.

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Yojas bhagwat from Global Indian International School , Pune
Subject :NSO    Class : Class 6

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Niteen Jit Sahu from Diya Academy of Learning, Bengaluru
Subject :NSO    Class : Class 4

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Bhargav from City Pride School, Nigdi
Subject :NSO    Class : Class 7

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