National Science Olympiad Forum By SOF Olympiad Trainer - Page 327
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Arav Jain from Global edge school, Hyderabad
Subject :NSO    Class : Class 7

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Dripto Goswami from Aditya Academy Secondary, Barasat, Barasat
Subject :NSO    Class : Class 3

Ans 1:

Agrim Singh Pal from DPS, Bangalore
Class : Class 3
I AM AGRIM IT IS EASY WRITH LET'S GO

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

A

Granite is very hard to break while chalk can be easily powdered using hands.


Ans 3:

NAAYSHA from DPS NOIDA, NOIDA
Class : Class 4

Ans 4:

Havi Jain from GEMS modern academy, Gurgaon
Class : Class 8
A

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Shreshta from Presidium, Ghaziabad
Subject :NSO    Class : Class 4

Ans 1:

jathin from national public school chikkabanavara, banglore
Class : Class 4
the answer is : C

Ans 2:

jathin from national public school chikkabanavara, banglore
Class : Class 4
the answer is : C

Ans 3:

Chinmaya Ratnagiri from DPS, HYderabad
Class : Class 4
There is no correct answer to this question.

Ans 4:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
C C C

Ans 5:

Chinmaya Ratnagiri from DPS, HYderabad
Class : Class 4

Ans 6:

ADVAY DHUA from DPS Noida, Noida
Class : Class 5
no correct answer for this bogus question. Mentioned that ant eaters lay eggs whereas they do not. they are mammals but they are not monotrems. answer can be c as butterfly lays eggs,platypus is a monotreme mammal so lays eggs, and flying lizard has wings.

Ans 7:

Vivaan A V from Loyola school, Jamshedpur
Class : Class 4
SOF got it right Some anteaters lay eggs; they did not say that it is related to normal anteaters who do not lay eggs

Ans 8:

delakshi from chrysalsis high, bangalore
Class : Class 4
the answer is not c because lizard dont have wings

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Shweta Garg from Vibgyor high, Vadodara
Subject :NSO    Class : Class 6

Ans 1:

Deeptajit Roy from Gems Modern Academy, Dubai
Class : Class 10
answer is D, air density decreases on increse in height

Ans 2:

A S Neeraj from K V 2, Chennai
Class : Class 6
No ans is not D it's B because air is a mixture not an element.

Ans 3:

Souradeepto Das Mandal from Hyderabad Public School, Hyderabad
Class : Class 6

Ans 4:

Vasu tyagi from St Joseph's High school, Panvel
Class : Class 6
Answer is D.

Ans 5:

Manaswini Aradhyula from DELHI PUBLIC SCHOOL BANGALORE EAST, Bengaluru
Class : Class 7

Ans 6:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10
ans is not option D as air is not an element , air is a mixture of many elements and compounds......further more statement 2 is correct as air density decreases with increasing altitude i.e air density decreases with increase in height

Ans 7:

Kavyam Rustagi from Delhi Public School, Ethalbari , Binnaguri
Class : Class 4

Ans 8:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 9:

Siddhani Nayak from DPS Paradip Refinery, Paradip
Class : Class 6

Ans 10:

Nuvin Khanna from Mount Olympus School, Gurgaon
Class : Class 6

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Bhavya Agrawal from Cambridge Court High School , JAIPUR
Subject :NSO    Class : Class 5

Ans 1:

Dushyant Singh from Shri Ram Centennial School, Indore
Class : Class 6

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

The layer of the Earth, which is made up of solid and molten rocks and contains magnesium and iron is mantle, and is represented by R. Earth's mantle is made up of rock and molten lava containing silicon, iron, magnesium, aluminium, oxygen and other minerals.


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KEERTHANA SHIBU from INDIAN SCHOOL GHOUBRA, Oman
Subject :NSO    Class : Class 6

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Amol Athawale from WoodRidge High, aurangabad
Subject :NSO    Class : Class 8

Ans 1:

Gaurish Singla from DPS School Sector 19, Faridabad
Class : Class 8

Ans 2:

Sreevatsa Rajesh from Indian School Al Maabella, Oman
Class : Class 8
SHORT STRECHED AND THIN STRINGS OF GUITAR PRODUCE NOTE OF HIGH PITCH AND VICE VERSA

Ans 3:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
yes

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Aanya Mehta from Gems Modern Academy, South City -2, Gurgaon, Gurgaon
Subject :NSO    Class : Class 4

Ans 1:

Ryan from YBIS , SINGAPORE
Class : Class 5

Ans 2:

jathin from national public school chikkabanavara, banglore
Class : Class 4
the correct answer is D because if we throw untreated industrial waste the water bodies the water might get polluted and cannot be safe for drinking and for our uses as it can cause some harmful diseases like cholera and jaundice and also harms the plants and animals in the water

Ans 3:

Aanya Mehta from Gems Modern Academy, South City -2, Gurgaon, Gurgaon
Class : Class 4
4 ans is D cause if we throw untreated industrial wastes in water bodies they will get polluted and we won t be able to drink it

Ans 4:

Ayushman Atreya from Little Heart Toddlers Academy, Angul
Class : Class 3
hhjj

Ans 5:

Ayushman Atreya from Little Heart Toddlers Academy, Angul
Class : Class 3

Ans 6:

TARA NAUTIYAL from CONVENT OF JESUS AND MARY, DEHRADUN
Class : Class 4
d is the correct answer because if we throw untreated industrial waste it harms the water we drink

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SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Subject :NSO    Class : Class 4

Ans 1:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
B

Ans 2:

jathin from national public school chikkabanavara, banglore
Class : Class 4
the correct answer is : B

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Shreya Shruti from Airforce school , Bengaluru
Subject :NSO    Class : Class 3

Ans 1:

Shreya Shruti from Airforce school , Bengaluru
Class : Class 8

Ans 2:

Ashutosh Baral from mother public school , Bhubaneswar
Class : Class 8

Ans 3:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
How it is C?Malaria is a water-borne disease spread by mosquitoes.They come near polluted water and may leave infectious germs.

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