National Science Olympiad Forum By SOF Olympiad Trainer - Page 415
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Raghav Tyagi from birla vidya niketan, new delhi
Subject :NSO    Class : Class 9

Ans 1:

PRIYA from Shri O.P. Jindal Vidya Niketan, Mundra
Class : Class 10
A

Ans 2:

Gayathri from DAV Public School, Thane
Class : Class 9
Correct answer is -A

Ans 3:

PRIYA from Shri O.P. Jindal Vidya Niketan, Mundra
Class : Class 10
A

Ans 4:

Yash Bindal from Global Indian International School, Singapore
Class : Class 9
Correct answer is A

Ans 5:

sujal saronit from Delhi Public School , rourkela
Class : Class 9
A is the answer

Ans 6:

Ajay from Kendriya Vidyalaya No.2 Calicut, Calicut
Class : Class 9
Ya but IT is showing c

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Harshad Kumar from Rajagiri Public School, Doha
Subject :NSO    Class : Class 4

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Tanushree from Asian International School, Colombo
Subject :NSO    Class : Class 7

Ans 1:

nishka Alpesh Lad from U S Ostwal English Academy, Mumbai
Class : Class 7

Ans 2:

siddarth from DPS Ecity, Bengaluru
Class : Class 8
formation of clouds is irreversible

Ans 3:

Surbhi Raul from DPS Bangalore East, BENGALURU
Class : Class 7

Ans 4:

Dhruv Singh from VIBGYOR HIGH HORAMAVU, BANGALORE
Class : Class 9

Ans 5:

rethish from Veltech, Avadi
Class : Class 3

Ans 6:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
Clouds when heavier fall as rain(Liquid). This rain water when runs off in the water bodies and gets heated under sun will again evaporate to the sky to form clouds again. So it is a reversible change. Hope its clear,.

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Anagha s Karnis from vijaya vittala vidyashala, MYSORE
Subject :NSO    Class : Class 7

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Anagha s Karnis from vijaya vittala vidyashala, MYSORE
Subject :NSO    Class : Class 7

Ans 1:

Anagha s Karnis from vijaya vittala vidyashala, MYSORE
Class : Class 8
During OP, distance travelled is maximum for a small period of time. Hence answer is B

Ans 2:

Rohan David from Oakridge International school, Hyderabad
Class : Class 7

Ans 3:

Rohan David from Oakridge International school, Hyderabad
Class : Class 7

Ans 4:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
b is answer

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arnab chatterjee from dps gurgaon, gurgaon
Subject :NSO    Class : Class 5

Ans 1:

Hari Govind from Delhi Public School Chandigarh , Chandigarh
Class : Class 6

Ans 2:

Saanjh Puthran from Dr. Pillai Global Academy, Mumbai
Class : Class 5
It is slightly confusing :-(

Ans 3:

Sumit Biswal from Dps gandhinagar, Gandhinagar
Class : Class 7
Yes it was a little confusing

Ans 4:

Abhigyan Panja from HEMSHEELA MODEL SCHOOL, DURGAPUR
Class : Class 5
NO IT WAS

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Bhavya Jain from K.R Manglam World School, Ghaziabad
Subject :NSO    Class : Class 5

Ans 1:

Pragya Mahajan from BCM Arya Model Sr Sec School, Ludhiana
Class : Class 8

Ans 2:

Dola Sai Anushka from Global Indian International school, singapore
Class : Class 7

Ans 3:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5

Ans 4:

Fiza from ABCD, Cochin
Class : Class 7
A is opaque, B is translucent and C is transparent.

Ans 5:

Saanjh Puthran from Dr. Pillai Global Academy, Mumbai
Class : Class 5
B.Because it allows us to see only a hazy picture of the boy's face.

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Anirudh from Modern senior secondary school , CHENNAI
Subject :NSO    Class : Class 5

Ans 1:

ARIHAAN SAMANTA from Springdale High School, KALYANI
Class : Class 8
bro a crying baby makes way more noise pollution haha

Ans 2:

suday ghai from DPS NOIDA, GAUTAM BUDDHA NAGAR
Class : Class 5

Ans 3:

Pratham Dave from GNS, Bangalore
Class : Class 7
C is the answer to this question

Ans 4:

Tanmay kaushal from ICSE, Mumbai
Class : Class 5

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Bhavya Jain from K.R Manglam World School, Ghaziabad
Subject :NSO    Class : Class 5

Ans 1:

Koustavi Chakraborty from DELHI PUBLIC SCHOOL, PUNE
Class : Class 5
sublimation as it is the process of solid changing to gas directly..so c is the correct answer..

Ans 2:

Pratik Gupta from MPS, Abu Dhabi
Class : Class 5
yes

Ans 3:

Bhavya Agrawal from Cambridge Court High School , JAIPUR
Class : Class 8

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Abhinha Ajay Ovhal from Podar International School, Latur
Subject :NSO    Class : Class 1

Ans 1:

Saiansh Biswas from Little Flower School, Jamshedpur
Class : Class 4
Wrong answer provided.

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