National Science Olympiad Forum By SOF Olympiad Trainer - Page 407
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Aaryaman Pradhan from De paul School , Berhampur
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

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

Ans 3:

AVANTIKA V from Amrita Vidyalayam Puducherry , Puducherry
Class : Class 4
D

Ans 4:

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.

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Naman surana from Witty international udaipur, Udaipur
Subject :NSO    Class : Class 8

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Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Subject :NSO    Class : Class 4

Which of the following statements is INCORRECT?

APlant and animals help to maintain the balance of oxygen and carbon dioxide in nature.
BCamouflage is the ability of an animal to change its colour to blend or merge with its surrounding.
CDue to the extreme heat and lack of food, some animals survive the summer season by going into a kind of deep sleep called hibernation.
DFew animals living in cold Arctic and Antarctic region have a thick layer of fat called blubber under their skin.


correct ans C

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Naman surana from Witty international udaipur, Udaipur
Subject :NSO    Class : Class 8

Ans 1:

Aryan Raina from MGN Public School, Jalandhar
Class : Class 8
answer b is right

Ans 2:

swayam shah from delhi public school vadodara, Vadodara
Class : Class 4
it will be option b light falls on screen in reverse order of VIBGYOR after dispersion

Ans 3:

Akshara from NPS, Bengaluru
Class : Class 8
Option b is the correct answer .

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Naman surana from Witty international udaipur, Udaipur
Subject :NSO    Class : Class 8

Ans 1:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
Answer is A

Ans 2:

Ashmi Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
SOF has given c as correct option in its own contentPlz verify and check...

Ans 3:

Akshara from NPS, Bengaluru
Class : Class 8
correct answer is c

Ans 4:

Naman surana from Witty international udaipur, Udaipur
Class : Class 8

Ans 5:

Student from School, City
Class : Class 5
The beam is parallel, so the light should not show any change whether it is near or away.

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Jayaditya singh from Delhi Public School, gurgaon
Subject :NSO    Class : Class 3

Ans 1:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4
b

Ans 2:

Yashaswin from KV afs begumpet, Hyderabad
Class : Class 3
C

Ans 3:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
B

Ans 4:

Raghav Srinivasan from new horizon, bangalore
Class : Class 3

Ans 5:

Jayaditya singh from Delhi Public School, gurgaon
Class : Class 6
B

Ans 6:

FAIZA AMIN from SAINT XAINS INTERNATIONAL SCHOOL ANANTNAG, ANANTNAG
Class : Class 3
D

Ans 7:

divita saxena from bhavans vidya mandir ashti , nagpur
Class : Class 4
d as graphite is used to make pencil lead and bulb is made up of tungsten

Ans 8:

Avyukta Saraswat from St Francis School , Greater noida west
Class : Class 3
what is silca

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Jayaditya singh from Delhi Public School, gurgaon
Subject :NSO    Class : Class 3

Ans 1:

divita saxena from bhavans vidya mandir ashti , nagpur
Class : Class 4
b chalk powder

Ans 2:

EASHAAN K SURESH from KANGEER VALLEY ACADEMY, Raipur
Class : Class 4
B

Ans 3:

Bhavikaa kedia from Anand Nikeitan Satellite, Ahmedabad
Class : Class 4
B

Ans 4:

Jayaditya singh from Delhi Public School, gurgaon
Class : Class 6
A

Ans 5:

Arohan chatterjee from Bharatiya vidya bhavan salt lake, Kolkata
Class : Class 8
Ans. B

Ans 6:

Anaahad Mehar Satsangi from Delhi Public School Agra, Agra
Class : Class 3
Class = 3B chalk powder

Ans 7:

Avyukta Saraswat from St Francis School , Greater noida west
Class : Class 3
the correct answer is option d

Ans 8:

FAIZA AMIN from SAINT XAINS INTERNATIONAL SCHOOL ANANTNAG, ANANTNAG
Class : Class 3
B

Ans 9:

FAIZA AMIN from SAINT XAINS INTERNATIONAL SCHOOL ANANTNAG, ANANTNAG
Class : Class 3
B

Ans 10:

Arth Karna from Presidium, New Delhi
Class : Class 3
VERY GOOD !!!!!!""""""""""

Ans 11:

SIDDHARTH SOMANI from Vibgyor High, Mumbai
Class : Class 5
B

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Saranyaa Adak from Delhi Public School, Durgapur
Subject :NSO    Class : Class 8

Ans 1:

Iba Khan from DPS , Noida
Class : Class 8

Ans 2:

Pravir Mishra from National Public School, Bengaluru
Class : Class 8

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Agastya Tripathi from dps gurgaon, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

Devina kashyap from TPS, Mumbai
Class : Class 4
i am not satisfied with the answer D is also correct

Ans 2:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4

Ans 3:

gautam from GIIS KL, Kuala Lumpur
Class : Class 5
how is d correct deforestation destroys habitats while afforestation is planting trees which does the opposite.the answer is a

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Jinisha Mahajan from Delhi Public School Jalandhar , Jalandhar
Subject :NSO    Class : Class 5

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