National Science Olympiad Forum By SOF Olympiad Trainer - Page 479
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Labonyo Sen from Calcutta Girls High School, KOLKATA
Subject :NSO    Class : Class 8

Ans 1:

Shreyam Tripathy from Ann Mary School, Dehradun
Class : Class 10
answer is A since speed of sound in air is more than that in water

Ans 2:

Prerona Chatterjee from DPS North Kolkata, Kolkata
Class : Class 9
Speed of light in water is less as compared to that of air as water is optically denser than air.

Ans 3:

Shreyans Mondal from Sri Chaitanya Techno School Kaggadasapura Campus 1, Bengaluru
Class : Class 10
Yes its A

Ans 4:

Aditya Anmol from Delhi Public School Ruby Park Kolkata, Kolkata
Class : Class 8
The answer should be A but it is showing C

Ans 5:

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

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Prerona Chatterjee from Delhi Public School North Kolkata, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

Sharvil Pankaj from Sanksriti School, Pune
Class : Class 4
ANSWER IS ABCD

Ans 2:

Deveshi Sachdev from venkateshwar international school, New Delhi
Class : Class 5

Ans 3:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
d

Ans 4:

Sashrika Pasunoori from KV Gachibowli, Hyderabad
Class : Class 5
Answer is D

Ans 5:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
correct answer is D

Ans 6:

Archita Moi from The Newtown School, Kolkata
Class : Class 4
Thank You !

Ans 7:

Deveshi Sachdev from venkateshwar international school, New Delhi
Class : Class 5

Ans 8:

NAMISH AGRAWAL from KV calicut, calicut
Class : Class 4
why it is not A

Ans 9:

Deveshi Sachdev from venkateshwar international school, New Delhi
Class : Class 5

Ans 10:

Shreshta from Presidium, Ghaziabad
Class : Class 3
A

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Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Srivatsa from Sri Sri Ravishankar Vidya Mandir, Bangalore
Class : Class 7
Option c X shows a tap root system while y shows a fibrous root system

Ans 2:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Option c

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Prerona Chatterjee from Delhi Public School North Kolkata, Kolkata
Subject :NSO    Class : Class 4

Ans 1:

Payal Porwal from St John gola, Gola
Class : Class 6
A

Ans 2:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4
stererega

Ans 3:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7

Ans 4:

Payal Porwal from St John gola, Gola
Class : Class 6
C

Ans 5:

Payal Porwal from St John gola, Gola
Class : Class 6
B

Ans 6:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
This is not correct answer!

Ans 7:

Deveshi Sachdev from venkateshwar international school, New Delhi
Class : Class 5

Ans 8:

AAYANSH from SMT.L.B.JOSHI ENGLISH HIGH SCHOOL, Thane
Class : Class 4

Ans 9:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Let’s check the given statements and find if they are correct:Statement 1: Snake and crocodile are cold blooded animals. ----- Correct. Snakes and crocodiles are reptiles. Reptiles are cold-blooded animals, and cannot control their body temperature. They regulate their body temperature by lying in the sun to warm up, or moving into the shade to cool down.Statement 2: Snake and crocodile breathe through moist skin mostly. ----- Incorrect. Snakes and crocodiles breathe through lungs. That is where the exchange of gases takes place.That means Statement 1 is correct but Statement 2 is incorrect.Hence, the right answer of Option C.The correct answer is C.

Ans 10:

Payal Porwal from St John gola, Gola
Class : Class 6
C

Ans 11:

Yatindra G from SBOA, Chennai
Class : Class 4
Ishit the answer is "C"

Ans 12:

ishit from EUROSCHOOL THANE, THANE WEST
Class : Class 7
Can you tell the answer to this question please please!!!!

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Samridhi from Delhi Public School, BANGALORE
Subject :NSO    Class : Class 7

Ans 1:

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

Ans 2:

KRITHIGHA SHRI M P from KAMALA NIKETAN MONTESSORI SCHOOL, TRICHIRAPPALLI
Class : Class 8
Chipko movement was started in 1973 and not in 1972

Ans 3:

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

Ans 4:

HARSHAL KUTE from cambridge school buldhana, Buldhana
Class : Class 6
Ans is b

Ans 5:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
answer is c. divya- management is not complete denial but better, reduced and wiser user of forest products.Hence all three are wrong and answer is c richa- chipko movement started in 1973nandini- She is wrong. what she told is not soil pollution but soil errosion

Ans 6:

Chaitanya L K from SKCHEC, bangalore
Class : Class 8
actually,the answer is B. Chipko movement was started in 1973....and what nandini says in soil erosion and not soil pollution.so the answer is B

Ans 7:

Geetha Shyam Cheepurubilli from SRI GOWTHAMI SMART SCHOOL, RAJAHMUNDRY
Class : Class 8
Answer.c chipko movement is started at 1973

Ans 8:

Soumyajit Roy from Delhi Public School Jamnagar, Jamnagar
Class : Class 9
But Divya is also incorrect

Ans 9:

Akshar Modi from Lpsi, Surat
Class : Class 7
Chipko movement started on 1973

Ans 10:

TRIYA SOUMIK NATH from SYMBIOSIS PRIMARY SCHOOL, PUNE
Class : Class 6
The right answer is C because conservation is not complete denial, chipko movement started in 1973 and it is not soil pollution but soil erosion.

Ans 11:

Samridhi from Delhi Public School, BANGALORE
Class : Class 7
thanks

Ans 12:

Sharanyaa Tripathi from Uttam school for girls, Ghaziabad
Class : Class 8
Divya is wrong because she says denial or utilization and utilization is good use in the right amt which is the opposite.Richa is wrong because Chipko movement started in 1973.Nandini is wrong because the answer is soil erosion, not soil pollution.Therefore, the correct answer is C- Divya, Richa and Nandini all are wrong. Please check and fix it SOF.

Ans 13:

Sahil Ray from Podar International School, Thane
Class : Class 7
answer is A I got it correct

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Akhil Vasanth from VIDYA MANDIR SENIOR SECONDARY SCHOOL CHENNAI TAMIL NADU, Chennai
Subject :NSO    Class : Class 3

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aarav m from kumarans, bengaluru
Subject :NSO    Class : Class 3

Ans 1:

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

Ans 2:

Bhavesh from Loyola School, Bhubaneshwar
Class : Class 3
c

Ans 3:

aarav m from kumarans, bengaluru
Class : Class 3
C

Ans 4:

Bhavesh from Loyola School, Bhubaneshwar
Class : Class 3
c

Ans 5:

Anupama from Gurukula international school , Javagal
Class : Class 3
C

Ans 6:

Arpit Sahoo from SAI International School, Bhubaneswar
Class : Class 7
C

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Tanush from presidency east, Bangalore
Subject :NSO    Class : Class 8

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Ashwak from Cambridge, Jalandhar
Subject :NSO    Class : Class 3

Ans 1:

Sushree snehasikta behera from Mother's public school , Bhubaneswar
Class : Class 2
option C is correct one

Ans 2:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 3:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 4:

AARAV TOMAR from PRUDENCE ASHOK VIHAR , DELHI
Class : Class 3
D

Ans 5:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 6:

Karthika Nayanar from Choice school Kozhikode , Kozhikode
Class : Class 2

Ans 7:

Anupama from Gurukula international school , Javagal
Class : Class 3
D

Ans 8:

Sushree snehasikta behera from Mother's public school , Bhubaneswar
Class : Class 2
option C is correct one

Ans 9:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 10:

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

Ans 11:

Vinay Dev Jhari from Delhi Public School, Noida
Class : Class 4
D

Ans 12:

Atharva from Dpsk, Guwahati
Class : Class 3
Ans. is D)

Ans 13:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 14:

Anaahad Mehar Satsangi from Delhi Public School Agra, Agra
Class : Class 3
The D option is correct as none of the options are incorrect

Ans 15:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 16:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 17:

Karthika Nayanar from Choice school Kozhikode , Kozhikode
Class : Class 2
answer is d

Ans 18:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 19:

Trina from Ganges Valley School, Hyderabad
Class : Class 10

Ans 20:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 21:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

Ans 22:

Mayank Paul from Saint Edmunds School, Shillong
Class : Class 3
C

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shaurya aggarwal from scholars rosary senior secondary school, rohtak
Subject :NSO    Class : Class 5

Ans 1:

Pratham Dave from GNS, Bangalore
Class : Class 7
Yes Ayushree Barman the answer to this question is B and not C

Ans 2:

Mehar from NCS, Vasco
Class : Class 5
Doesn't ice conduct electricity?

Ans 3:

harry potter from Hogwarts school of witchcraft and wizardry , london
Class : Class 5
yes, ice is the frozen form of water abut it still conducts electricity although it is a poor conductor

Ans 4:

Devina kashyap from TPS, Mumbai
Class : Class 4
B is also correct as none of them in column W is magnetic

Ans 5:

shaurya aggarwal from scholars rosary senior secondary school, rohtak
Class : Class 9

Ans 6:

Srija Das from Sent Joseph Convent Chandannagar, Serampore
Class : Class 10
option B can also come

Ans 7:

Shreyasi Padihary from The Cambridge International School , Bangalore
Class : Class 7
I think it is B

Ans 8:

Swastik Panda from Orchid International school, Pune
Class : Class 5
Yes, of course, the answer should be B

Ans 9:

Shreyasi Padihary from The Cambridge International School , Bangalore
Class : Class 7
Answer should not be B as zinc and aluminium are not magnetic.

Ans 10:

Ayushree Barman from Sri Sri Academy, Kolkata
Class : Class 6
The correct answer should be B. Ice is the frozen form of water, which is a good conductor. So C cannot come as the answer.

Ans 11:

Karthika from isg, Muscat
Class : Class 7
option B also can come

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