National Science Olympiad Forum By SOF Olympiad Trainer - Page 491
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Pranav Kiran Rajarathna from The Samhita Academy, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Tanishka Laha from Euroschool, Bengaluru
Class : Class 5
(A) cannot be the right answer as once the water vaporizes, there is no scope for sedimentation. (B) cannot be the right answer as once the mixture is filtered, the sand shall be collected on the filter paper while the clean water shall be collected in a beaker.Evaporation is not required. The answer is (C) because sand is heavier than water and shall settle down at the bottom of the beaker.This process is called sedimentation.Subsequently,the clear water from the top can be decanted out. (D) cannot be the right answer as once decantation is done, the clear filtrate shall be left over and filtration is not required.

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HARSHAL KUTE from cambridge school buldhana, Buldhana
Subject :NSO    Class : Class 7

Ans 1:

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

Ans 2:

Vedang Shridhar Sasturkar from Vasant Valley School, New Delhi
Class : Class 7
It is correct as vaporisation increases with increased wind speed

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Ira from Modern Vidya Niketan, Faridabad
Subject :NSO    Class : Class 7

Ans 1:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option d .....

Ans 2:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
ans is D

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Ira from Modern Vidya Niketan, Faridabad
Subject :NSO    Class : Class 7

Ans 1:

Nivriti from Euro, Mumbai
Class : Class 8
Ans is A

Ans 2:

Aryansinh Vadher from Nirma vidyavihar , Ahmedabad
Class : Class 7

Ans 3:

Parva Vyas from Navrachana, Vadodara
Class : Class 7

Ans 4:

Punit Singla from Birla Shishu Vihar , Loharu
Class : Class 7

Ans 5:

ARIHAAN SAMANTA from Springdale High School, KALYANI
Class : Class 8

Ans 6:

Puravk from DELHI SCHOOL OF EXCELLENCE, HYDERABAD
Class : Class 8
P will have as it is the end of a terminal

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Gatik Garv Anand from St Francis School, Indirapuram
Subject :NSO    Class : Class 6

Ans 1:

Aaryav Tiwari from DPS VK, Delhi
Class : Class 5
Name of a bike

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Aditya singh from AKSHARA INTERNATIONAL SCHOOL, pune
Subject :NSO    Class : Class 7

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Yashna Badiye from sagar public school saket nagar, Bhopal
Subject :NSO    Class : Class 7

Ans 1:

priyanka from kendriya vidalaya kathmandu, JHAJJAR
Class : Class 8
option c ......

Ans 2:

sankalp from Gyan Bharti School, Saket, Delhi
Class : Class 10

Ans 3:

Prachi Todalge from New India School, Pune
Class : Class 7
Option C is correct.

Ans 4:

Krishna Patidar from Advanced Academy, Indore
Class : Class 8

Ans 5:

Tanushree from Asian International School, Colombo
Class : Class 7

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abhijeet mishra from bhubaneswar model public school, bhubaneswar
Subject :NSO    Class : Class 9

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Sabhya Kumar from Suncity School, Gurgaon
Subject :NSO    Class : Class 7

Ans 1:

Nandu from The Asian School, Bahrain
Class : Class 3
B-B is t-the A-ans

Ans 2:

Hassan ahmad khan from Bal Bhavan School, Bhopal MP
Class : Class 7
b

Ans 3:

Riddhima Das from GIIS, Singapore
Class : Class 8
It can be c too

Ans 4:

Preethi from KKIS, Singapore
Class : Class 6
How there is no explanation

Ans 5:

Prisha Gupta from Lokhandwala Foundation School, Mumbai
Class : Class 7
answer is b

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Joe Koshy from PSBB LLA, Bengaluru
Subject :NSO    Class : Class 8

Ans 1:

Divij Narang from ,
Class : Class 9

Ans 2:

Divij Narang from ,
Class : Class 9

Ans 3:

Ahdiya Sharik from St Thomas public school, Trivandrum
Class : Class 8
If you meant incorrect statements option d would be correct but in the question it says correct statementsPLEASE RECTIFY THIS ERROR

Ans 4:

NIVED PRAKASH NAIR from SARVODAYA, THIRUVANANTHAPURAM
Class : Class 8
Under normal circumstances, Amoeba undergoes binary fission. Also ,in multiple fission, the organism divides into four daughter cells. Please correct this error

Ans 5:

Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Class : Class 8
(C)

Ans 6:

midhuna from ABCD, Hyderabad
Class : Class 8
I think u meant incorrect not correcttestes only produces sperm in external temperaturesit cannot produce gametes in internal temperatures so it is present out side not in the cavityamoeba undergoes multiple fissionand what you gave has nothing to do with mensuration.please correct these mistakes!!

Ans 7:

Het Aryan from Podar International School , Pune
Class : Class 9

Ans 8:

Sharanyaa Tripathi from Uttam school for girls, Ghaziabad
Class : Class 8
amoeba undergoes BINARY FISSION!! as per NCERT

Ans 9:

VIDULA SINGH from MOUNT CARMEL SCHOOL DWARKA, NEW DELHI
Class : Class 8

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