National Science Olympiad Forum By SOF Olympiad Trainer - Page 779
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Murukesh from KV Jipmer Campus Shift 2, Pondicherry
Subject :NSO    Class : Class 5

Post Your Answer

Ashher Pervez from DPS Bhilai, Bhilai
Subject :NSO    Class : Class 5

Ans 1:

Shivani Shivu Singh from Pawar Public School Chandivali , Mumbai
Class : Class 8
b

Ans 2:

dhairya mittal from vidyashram international school jodhpur, Jodhpur
Class : Class 5
C IS CORRECT

Ans 3:

aatmaj sharma from HAPS HAMIRPUR HP, HAMIRPUR
Class : Class 9

Ans 4:

Adarsh Kamath from DPS Whitefield, Bangalore
Class : Class 6
you both are wrong.the correct answer is B

Ans 5:

ABCDE from admin, Noida
Class : Class 5
c is the correct answer

Ans 6:

sauradeep from j v m Shyamali , ranchi
Class : Class 10
B

Ans 7:

Sharanya Saini from Frank Anthony Public school, New Delhi
Class : Class 5
the answer is option D

Ans 8:

Ybbn from Alphabet International School, Chennai
Class : Class 3
I DON'T UNDERSTAND, CLARIFY MY DOUBT QUICKLY SIR OR MADAM

Ans 9:

Shreejit Hadavale from Sanskriti School, Pune
Class : Class 5
Dd

Ans 10:

Hari Govind from Delhi Public School Chandigarh , Chandigarh
Class : Class 6
answer should be B

Ans 11:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
if you have problem please report it

Ans 12:

Aaditva from Vasant Valley School, New Delhi
Class : Class 5
B is the correct answer. According to me

Ans 13:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
where is the solution

Ans 14:

Shanaya Siddhartha from Bal Bharati Public School, Navi Mumbai
Class : Class 3
clearly answer B is correct

Ans 15:

Taksh from Delhi Public School, Secunderabad
Class : Class 6
answer should be b

Ans 16:

Shivani Shivu Singh from Pawar Public School Chandivali , Mumbai
Class : Class 8
b

Ans 17:

Ybbn from Alphabet International School, Chennai
Class : Class 3
The answer is d because they ask which is " INCORRECT", AND OPTION B IS THE CORRECT OPTION, AND BOTH A AND C ARE INCORRECT. AS THEY HAVE ASKED INCORRECTLY, THE ANSWER IS D, AS BOTH A AND C ARE WRONG.

Ans 18:

Ishaan Ahuja from TSMS, Noida
Class : Class 6
the ans is *BBBBBBBBBBBBBBB*

Ans 19:

Anil sinha from DPS, Chandigarh
Class : Class 4

Ans 20:

anirudh pratap singh parihar from RAMJAS SCHOOL ANAND PARVAT, DELHI
Class : Class 7
well we can say that ans d is correct because emu has both the features mentioned in the question while option b describes only one of them

Ans 21:

Mystic Girl from NPS, Bnagalore
Class : Class 6
The correct answer is D

Ans 22:

Lakshana from SBOA School and Junior College, Chennai
Class : Class 6
D is only correct as in option B they have given that Z can be emu but emu has both wings and feathers and it is a flightless bird

Ans 23:

Ronav Kerkar from Jamnabai Narsee School, Mumbai
Class : Class 7
SHOULD BE B

Ans 24:

Taksh from Delhi Public School, Secunderabad
Class : Class 6
answer should be b right

Ans 25:

Aditya from Glendale Academy, Hyderabad
Class : Class 5
it is 'b'

Ans 26:

Anika Saha from New Town School, KOLKATA
Class : Class 6
the answer is B

Ans 27:

marika from VTS, Mumbai
Class : Class 4

Ans 28:

Ayush Yadav from Salwan Public School, Gurgaon
Class : Class 6

Ans 29:

Aarnav from FIA, Nashik
Class : Class 6
According to me the answer is B.

Ans 30:

Prath from Vibgor High, Bangalore
Class : Class 10
Even I think the correct answer is B

Ans 31:

Anaisha from Hsss, Chennai Dr
Class : Class 5
B is correct

Ans 32:

Ayush Yadav from Salwan Public School, Gurgaon
Class : Class 6
Answer D is correct

Ans 33:

Saipriya from Sankara, Chennai
Class : Class 9
A is only correct

Ans 34:

from ,
Class : Class 5
Answer is b

Ans 35:

madhav from null, null
Class : Class 5
it is written select the incorrect statement

Ans 36:

MAHARU KAWATO from GLOBAL INDIAN INTERNATIONAL SCHOOL, TOKYO
Class : Class 5
I think my answer is right

Ans 37:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
But the correct answer according to SOF is option D

Ans 38: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 39:

Anahita Baruah from DPS Bangalore East, Bengaluru
Class : Class 3
Bats have wings and no feathers. Ostriches and Emus have both feathers and wings, but they can’t fly mainly due to their huge size. Penguins have feathers and flippers (not wings). “A” is incorrect as bats doesn’t have feathers. “B” is incorrect as penguins doesn’t have wings. “C” is incorrect as there are birds that has both feathers and wings. “D” is the correct answer

Ans 40:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
A is correct

Ans 41:

Rimi from TLISK, pune
Class : Class 9
B is the correct answer.

Ans 42:

Dhriti Das Purkayastha from Inventure Academy, Bangalore
Class : Class 7
the correct answer is D as in B there is no mention on what X is

Ans 43:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
b answer, wrong question

Ans 44:

Syed Mohammad Hussain from ISAM, Muscat
Class : Class 8
d

Ans 45:

Adarsh Kamath from DPS Whitefield, Bangalore
Class : Class 6
you both are wrong.the correct answer is B

Ans 46:

Deeptajit Roy from Gems Modern Academy, Dubai
Class : Class 10
Organism X is actually emu, because it has wings AND feathers. So correct answer is D.Answer B however is wrong, as it tells emus ONLY have feathers. Answer C is wrong as organism X can be any bird, even penguins. And answer A is also wrong as bats don't have feathers and ostriches have wings too.

Ans 47:

Mathamagician from BGSNPS, Bengaluru
Class : Class 6
I thought it was c), but it is d). People who think it is b), are all fools

Ans 48:

Sai Lakshmi Rao from Maneckji Cooper Education Trust, Mumbai
Class : Class 4
The answer has to be b. Come on SOF.

Ans 49:

D M Sarvesh from Narayana Group of Schools, Mogappair
Class : Class 4

Ans 50:

Amaan Alam from JSS Private School , Dubai
Class : Class 5
B is the correct answer

Ans 51:

Prisha Shah from Euroschool Airoli, Mumbai
Class : Class 6
The correct ans is B

Ans 52:

Riya Nambiar from The Sanskaar Valley School, Bhopal
Class : Class 10
Fe facts:1) Ostriches have wings, though it is not used for flying.2) Bats do not have feathers. They have hairs like other mammals.3) Emu has wings and again not used for flying.4) A penguin has feathers.5) Almost all birds have wings and feathers.So, option D is the only one that seems right.

Ans 53:

aatmaj sharma from HAPS HAMIRPUR HP, HAMIRPUR
Class : Class 9
according to me the correct answer is B

Ans 54:

Rimi from TLISK, pune
Class : Class 9
Mathamagician, we should not say anyone fool. Please keep in mind

Ans 55:

Mannan from Sherwood High, Bengaluru
Class : Class 7
Hey many people are thinking answer B is right .well, yeah according to me ans B is right .these SOF people really need to improve and update this app

Post Your Answer

PRIYANSH PAL from GRM, BAREILLY
Subject :NSO    Class : Class 9

Ans 1:

pm from amity , noida
Class : Class 9
oil has a low boiling point than water. Therefore we use oil to make the cooking process faster and easier

Ans 2:

pm from amity , noida
Class : Class 9
oil has a low boiling point than water. Therefore we use oil to make the cooking process faster and easier

Ans 3:

Aditya Prasad from Notre Dame , Gumla
Class : Class 9
We fry stuff in oil because oil has much higher boiling point in comparison to water. So after heating when oil reaches temperatures greater than the boiling point of water (100 C) it instantly vaporize the water present in food into steam. ... Oil fries it and gives a crispy texture.

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Vihaa Sharma from Global Indian International School Tokyo, Tokyo
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

Post Your Answer

SAANVI.SHUKLA from DELHI PUBLIC SCHOOL, NOIDA
Subject :NSO    Class : Class 2

Ans 1:

Manit Aggarwal from St. Patricks Academy Bengaluru, Bangalore
Class : Class 8
a is the answer

Ans 2:

muskan kapoor from muskan kapoor, Amritsar
Class : Class 8

Ans 3:

Arnav Basu from faps, Bengaluru
Class : Class 6
a is theaa is the answer.

Ans 4:

Kitika Kothari from Ramniwas Bajaj High School, Mumbai
Class : Class 4
The answer is D as the pictures given have different hazards.

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Sanjana Iyer from HFS Powai, Mumbai
Subject :NSO    Class : Class 6

Ans 1:

SUHANI PANDA from DE PAUL SCHOOL, BERHAMPUR
Class : Class 8
I think it's option (C) as plastic bags are harmful for environment.

Ans 2:

SUHANI PANDA from DE PAUL SCHOOL, BERHAMPUR
Class : Class 8
I think it's option (C) as plastic bags are harmful for environment.

Post Your Answer

robinbijo from Sri Sankara Senior Secondary High School, Chennai
Subject :NSO    Class : Class 6

Ans 1:

Tanishkchamp from Saint Francis English medium school, Bandikui
Class : Class 8
because when we plant a tree , it absorb water from the soil and sun absorb water from leaf and in sky it made cloud and rain occur

Ans 2:

SUHANI PANDA from DE PAUL SCHOOL, BERHAMPUR
Class : Class 8
Water absorbed from roots of plants is trasported to leaves of plant. excess water escapes into atmosphere in the process of traspiration which forms clouds and thus help in raining.

Post Your Answer

Ayush Kumar from Maria Assupta Sr. Sec. Convent School, KASHIPUR
Subject :NSO    Class : Class 5

Ans 1:

Archit srivastava from Rbk school, Mumbai
Class : Class 4

Ans 2:

D Murari from Indian School of Excellence, Bangalore
Class : Class 9

Ans 3:

Rishika Budhiraja from TSMS Noida, Noida
Class : Class 4

Ans 4:

MANAS.KUMAR from Dehli Public School Noida, NOIDA
Class : Class 5
can anyone tell me

Ans 5:

Krithi Manasvini from Alwin Memorial Public School, Chennai
Class : Class 7
As there are 2 magnets and 2 non magnet rings, only one space can be obtained between the 2 magnets with similar poles repelling each other. Option A shows two spaces between rings. This configuration is not possible.

Ans 6:

SANVI ROHILLA from The little shri, Rohtak
Class : Class 5

Ans 7:

Nayanika Sadhish from CL Metha Sishya OMR, Chennai
Class : Class 9
I do not understand this qustion

Ans 8:

Vivaan Patra from PODAR INTERNATIONAL SCHOOL, mumbai
Class : Class 1

Ans 9:

A Venkata Sai Pranav from Podar International School, Bhusawal
Class : Class 9
How

Ans 10:

Vedanth S from Kumarans Childrens Academy, Bangalore
Class : Class 6
correct answer:D

Ans 11:

Jeronee from Christwood School, PERUMBAKKAM
Class : Class 5
FUCKU

Ans 12:

Kyraa Singh from dpsnoida, Noida
Class : Class 5
All apart from c are correct

Ans 13:

Akshara from NPS, Bengaluru
Class : Class 8

Ans 14:

BHUVANESH2010 from MAYOOR PRIVATE SCHOOL, ABU DHABI
Class : Class 5

Ans 15:

Arnav kaul from Chirec, Hyderabad
Class : Class 2

Ans 16:

Rishika Budhiraja from TSMS Noida, Noida
Class : Class 4
so difficult

Ans 17:

Anant Saxena from Delhi public school Gandhinagar , Gandhinagar
Class : Class 9
the simplest solution is there there are two magnets so only 1 or 0 gaps should be there... in a: there are two gaps so a is the answer .. on the other hand look at the textures

Ans 18:

RC from Vibgyor, Navi Mumbai
Class : Class 9

Ans 19:

Sunita from Dps, Greater Noida
Class : Class 9
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Ans 20:

Sunita from Dps, Greater Noida
Class : Class 9
haha

Ans 21:

Adyanshu Panigrahi from Montfort School, Dhenkanal
Class : Class 6

Ans 22:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5
The correct answer is A. I wrote it wrong as D

Ans 23:

Vihaan from K R Mangalam World School Vaishali, Ghaziabad
Class : Class 9
hjkhkrywiury4uyiyyrryeurdfieuuiufiuiukhjhwaste hamnmhj mangfeme nt lieowuioelbiruuwilruy3r73673 b7647li 764u3ilq 8oo47b ,l3iy4rbc iluryb ejkty4uqib4ucyri4k7r q4ktry srbuyeurv cyuikray4rv, kvyrbv4 yr34uq6 ivee4uiyrbueywruy4uyiuyyuyuiyiuy

Ans 24:

VAIBHAVH RAMESH from NARAYANA ETECHNO WHITEFIELD, BANGALORE
Class : Class 5

Ans 25:

SANVI ROHILLA from The little shri, Rohtak
Class : Class 5

Ans 26:

shivan iyer from dr pillai global academy, MUMBAI
Class : Class 4
a

Ans 27:

Avighna Shastri from doha modern indian school, doha
Class : Class 2

Post Your Answer

arijit paul from New Town School, Kolkata
Subject :NSO    Class : Class 7

Ans 1:

Neevedita Singh from Auxilium Convent School Dum Dum, Kolkata
Class : Class 7
A

Ans 2:

Khwahish Sharma from Oakfield Public School , Jaipur
Class : Class 7
The answer should be C because during the last 10 seconds [ 40 second ] the distance is 10 meter not 5 meter.

Post Your Answer

Debarpan Das from Delhi Public School , Durgapur
Subject :NSO    Class : Class 3

Ans 1:

Ashwak from Cambridge, Jalandhar
Class : Class 9

Ans 2:

Aarathy Sudhir Aarav Sudhir from Global Indian International School, Abu Dhabi
Class : Class 7
Tailor Bird 's Nest Is Made Of 2 Leaves Not Like This One Gotcha!

Ans 3:

Shiven Dinkar from DPS NOIDA Sector 30, Delhi
Class : Class 4
what????

Ans 4:

Aditi Mahanti from DPS North Kolkata, Kolkata
Class : Class 3
It should be a tailorbird

Ans 5:

Diya Jasmina from Samsidh MLZS, Bengaluru
Class : Class 4
WHAT!!!!!! IT SHOULD BE (A).

Ans 6:

SS from meridian, hyderabad
Class : Class 5
yes the answer is tailor bird

Ans 7:

Ashwak from Cambridge, Jalandhar
Class : Class 9
They are right it should be [B] .

Ans 8:

Sreenath from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 5
Tailor bird that is A

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