National Science Olympiad Forum By SOF Olympiad Trainer - Page 381
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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:

rethish from Veltech, Avadi
Class : Class 3

Ans 2:

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

Ans 3:

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

Ans 4:

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,.

Ans 5:

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

Ans 6:

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

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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:

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

Ans 2:

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

Ans 3:

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

Ans 4:

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

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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:

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.

Ans 3:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5

Ans 4:

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

Ans 5:

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

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

Ans 1:

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

Ans 2:

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

Ans 3:

ARIHAAN SAMANTA from Springdale High School, KALYANI
Class : Class 7
bro a crying baby makes way more noise pollution haha

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:

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

Ans 2:

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

Ans 3:

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..

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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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Mohammed Kashif Ahamed from Smt Kamalabai Educational Trust, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Adithya Sathyanarayanan from Chennai Public School, Chennai
Class : Class 6

Ans 2:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10
By mistake I wrote the wrong answer because I did not seem the question that it was return metal ball

Ans 3:

Shikhar Mallick from Holy Cross School, Agartala
Class : Class 7

Ans 4:

sarag bordoloi from dps numaligarh, golaghat
Class : Class 9

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