National Science Olympiad Forum By SOF Olympiad Trainer - Page 502
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Agustya vaid from Somerville school vasundhara enclave, Delhi
Subject :NSO    Class : Class 6

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Pragun goel from Venkateshwar International School, Delhi
Subject :NSO    Class : Class 5

Ans 1:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 2:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 3:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 4:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 5:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 6:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 7:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 8:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 9:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 10:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 11:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 12:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 13:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 14:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 15:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Ans 16:

akshaj das from NARAYANA E TECHNO kaggdaspura, Bengaluru
Class : Class 8

Post Your Answer

Fareeha siddiqua from Janki Devi public school , Mumbai
Subject :NSO    Class : Class 4

Ans 1:

PRANAB KUMAR from MARIAS PUBLIC SCHOOL, Guwahati
Class : Class 6
i did not understand anything/

Ans 2:

Krishika Madan Shanmugam from National Public School, Bangalore
Class : Class 5
Yes the answer is B

Ans 3:

Kavin from ISG , Muscat, Muscat
Class : Class 5
so did i pranab

Ans 4:

Saanchi singh from AVM BKC , Mumbai
Class : Class 4
X is carbon dioxide Y is chlorophyll Z is oxygen So then the correct answer would be B

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Dishamrutha from indian school of excellence, bangalore
Subject :NSO    Class : Class 5

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TEJASWANI from TIME SCHOOL, HYDERABAD
Subject :NSO    Class : Class 7

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Gitika from Ritchie Park elementary school, USA
Subject :NSO    Class : Class 5

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Shaurya Khurana from Suncity, Gurgaon
Subject :NSO    Class : Class 8

Ans 1:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
yes it is but it does not have ions that can conduct electricity

Ans 2:

Rhyin Mandal from Hem Sheela Model School, DURGAPUR
Class : Class 8
excuse me!!!! Is water not a liquid? :)

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Shaurya Khurana from Suncity, Gurgaon
Subject :NSO    Class : Class 8

Ans 1:

Shreyam Tripathy from Ann Mary School, Dehradun
Class : Class 10

Ans 2:

Shreyam Tripathy from Ann Mary School, Dehradun
Class : Class 10

Ans 3:

Aadi from Treamis World School, Bangalore
Class : Class 9
Nothing has been mentioned here, how are we supposed to know whether or not the object is placed at 2F(1) and its image is formed at 2F(2)

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swayam shah from delhi public school vadodara, Vadodara
Subject :NSO    Class : Class 8

Ans 1:

Nikita Sehgal from Apeejay School Mahavir Marg , Jalandhar
Class : Class 8
Yes the answer needs to b option B

Ans 2:

Dev Rawat from R D Rajpal School, New Delhi
Class : Class 8
I too did B but the answer according to sof is DPlease explain

Ans 3:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10
b?

Ans 4:

Simar Narula from Rishi Coaching Institute , Jaipur
Class : Class 8
The answer must be Option B

Ans 5:

Avyukth Radhakrishnan from TSRS, Gurgaon
Class : Class 10

Ans 6:

hrishikesh giri basumatary from marias public school, Guwahati
Class : Class 6

Ans 7:

ABDUL Rahman SIDDIQUI from Indian school al maabela , muscat
Class : Class 9

Ans 8:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
ya its b

Ans 9:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
no guys m sorry but their answer is correct as when we wear water goggle we can see clear. its fault our eyes not water.

Ans 10:

Anjisha Chakraborty from Mount Litera Zee School, Jabalpur
Class : Class 5
Option B

Ans 11:

Jasleen Kaur Brar from St Joseph's convent sen sec school, bathinda
Class : Class 9
Even i chose option B. Plz explain why would the answer be option D

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Aaryaman Pradhan from De paul School , Berhampur
Subject :NSO    Class : Class 4

Ans 1:

Isabelle Joy from The Shriram Millennium School Noida , Noida
Class : Class 4

Ans 2:

UMANG from spring dale college, Lucknow
Class : Class 7
the answer is D. because after the full moon, there comes the glibbous moon

Ans 3:

Sushree snehasikta behera from Mother's public school , Bhubaneswar
Class : Class 2
D is the correct answer as the moon takes approximately 3 days change from one phase to another. after new moon cresent moon comes.

Ans 4:

AVANTIKA V from St.joseph of Cluny school , Puducherry
Class : Class 6
D

Ans 5:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Given figures show the shapes of Moon seen from Earth on different nights:We know that the moon changes from one phase to the next in approximately 3 days. Same is shown by the above figures. Let’s see what all phases the moon has, and put the above given dates to the right phases:That means on January 17, it would be a crescent moon – waxing crescent moon.Hence, the right answer is Option D.

Ans 6:

AAYANSH from New horizon scholars school, Thane
Class : Class 10

Ans 7:

AAYANSH from New horizon scholars school, Thane
Class : Class 10

Ans 8:

AAYANSH from New horizon scholars school, Thane
Class : Class 10
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Ans 9:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
answer is d because after new moon cresent moon comes after 2 days

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