National Science Olympiad Forum By SOF Olympiad Trainer - Page 387
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Pratheek from Null, Null
Subject :NSO    Class : Class 6

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Dushyant Singh from Shri Ram Centennial School, Indore
Subject :NSO    Class : Class 5

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Arushi from Indira National School, Pune
Subject :NSO    Class : Class 8

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Archishman Pal from Sri Krishna Mission School, Agartala
Subject :NSO    Class : Class 4

Ans 1:

mishika tripathi from DPS, Gurugram, Haryana
Class : Class 5
answer is C

Ans 2:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
meaning of piercing

Ans 3:

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

Ans 4:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 8
The correct answer is C.

Ans 5:

Ashlynn Bhatia from Modern Vidya Niketan Sr. Secondary School Sector - 17, FARIDABAD
Class : Class 4

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Archishman Pal from Sri Krishna Mission School, Agartala
Subject :NSO    Class : Class 4

Ans 1:

Arrni Das from St George School, New Delhi
Class : Class 8
Answer C is the right answer, as Boiling leads to water residue and fungal growth happens on storing. In the case of baking the food is dried up and can be stored for longer duration

Ans 2:

Twisha Arora from Modern Vidya Niketan, Sector - 17, Faridabad, Haryana, FARIDABAD
Class : Class 7
No, you are wrong @Arini Das. The correct answer is B. Baking is a method for cooking only whereas canning and drying are methods of preservation. Boiling is a method of cooking as well as preservation so B is the correct answer.

Ans 3:

jathin from national public school chikkabanavara, banglore
Class : Class 4
ANSWER IS B

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Archana from Opg World School, New Delhi
Subject :NSO    Class : Class 5

Ans 1:

Rishita kundu from Dav Public School taratala,Kolkata, Kolkata
Class : Class 5

Ans 2:

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

Ans 3:

Archana from Opg World School, New Delhi
Class : Class 7

Ans 4:

Hitanshi Behera from Loyola School , Bhubaneswar
Class : Class 4
oye balle balle dhe shava shava, balle balle dhe shava shava, pio pio re kava kava, gana khatham hua

Ans 5:

Subhang Deep Sahu from Chrysalis High Kadugodi . , Bangalore
Class : Class 7

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

Ans 1:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

Ans 5:

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

Ans 6:

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 7:

Sourangshu Mallick from GIIS, Singapore
Class : Class 2

Ans 8:

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 9:

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

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:

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

Ans 3:

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

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

Ans 1:

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

Ans 2:

MIERA SHARMA from DPS AGRA, AGRA
Class : Class 8

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

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