National Science Olympiad Forum By SOF Olympiad Trainer - Page 592
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Avantika Raj from Delhi Public School, Bengaluru
Subject :NSO    Class : Class 3

Ans 1:

Pankaj Rajput from RBK GLOBAL SCHOOL, THANE
Class : Class 4
HOW

Ans 2:

SHAUNAK from St Xaviers School, HAZARIBAG
Class : Class 3
B is the correct answer.

Ans 3:

Havi Jain from GEMS modern academy, Gurgaon
Class : Class 8
In thunder storms we see the lightning comes first and the sound comes after the lightning.

Ans 4:

Hargun Wadhwa from Manav Rachna International School, Sector 46 Gurgaon
Class : Class 4
yes true because mast of the time when we go to mountains are voice echo because as we are at the height and there is a gap between them so in the gap it is deep below us and there is water also like valley and when thunder comes it comes from water only and the voice echos every where

Ans 5:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 8
B

Ans 6:

akshitha from Euroschool, Bengaluru
Class : Class 3
how can that happen?

Ans 7:

Avantika Raj from Delhi Public School, Bengaluru
Class : Class 9

Ans 8:

Ananya from Chrysalis high school, Banglore
Class : Class 3
B

Ans 9:

akshitha from Euroschool, Bengaluru
Class : Class 3
yah B is the correct answer

Ans 10:

Karthik from TMS, Dubai
Class : Class 4
Answer is B

Ans 11:

Raghav Agarwal from Dinobli School, jharia
Class : Class 4
How B is correct

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daniel from whitefield global school, bangalore
Subject :NSO    Class : Class 3

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Jeronee from Christwood School, PERUMBAKKAM
Subject :NSO    Class : Class 5

Ans 1:

shaurya from St Gregorios High school, Mumbai
Class : Class 5
a

Ans 2:

from GIIS,
Class : Class 4
A is the ans

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MInnal Senthil from Prakriya, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

Dheer Bedarker from Green Valley High school , Vadodara
Class : Class 10
It can be all

Ans 2:

Kushal from Chirec, Hyderabad
Class : Class 7
c

Ans 3:

devansh gaurangi from Stella Maris School , Lucknow
Class : Class 8
It's answer could be C option.

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MInnal Senthil from Prakriya, Bangalore
Subject :NSO    Class : Class 6

Ans 1:

devansh gaurangi from Stella Maris School , Lucknow
Class : Class 8
It's answer could be A option because the mirror is above all 4 persons.

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Diya Jasmina from Samsidh MLZS, Bengaluru
Subject :NSO    Class : Class 3

Ans 1:

Sia Parekh from Pawar Public School, Mumbai
Class : Class 7
Sia Parekh from Pawar Public School BHANDUP Class: 3A

Ans 2:

Diya Jasmina from Samsidh MLZS, Bengaluru
Class : Class 4

Ans 3:

Anika Agarwal from Greenwood High International School, Bangalore
Class : Class 3

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 9
C

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Shubhith from Chaitanya Techno School, Gangavathi
Subject :NSO    Class : Class 6

Ans 1:

Kushal from Chirec, Hyderabad
Class : Class 7
i think the answer is winnowing and threshing

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OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Subject :NSO    Class : Class 5

Ans 1:

Vihaan Patil from Bombay Scottish School, Mahim Mumbai
Class : Class 6
what the heck is a solar cooker

Ans 2:

Mohammed Najl from Credence high school Dubai, Dubai
Class : Class 5
arent options A and D the same thing?

Ans 3:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is D because in this picture it is a pizza maker which was used in olden days.

Ans 4:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
the pic is not clear so i can not understand what they want to say.

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AADRITA DATTA from DELHI PUBLIC SCHOOL,HOWRAH, Howrah
Subject :NSO    Class : Class 4

Ans 1:

Ashwak from Cambridge, Jalandhar
Class : Class 9
A is the correct answer .....

Ans 2:

Amresh Patnaik from ODM PUBLIC SCHOOL, BHUBANESWAR
Class : Class 8

Ans 3:

Shubham Majhi from Sri Chaitanya Techno School, Bangalore
Class : Class 5
A

Ans 4:

Chinmayee from Dimensions , Singapore
Class : Class 4
D 'cause it's blurry

Ans 5:

Chinmayee from Dimensions , Singapore
Class : Class 4

Ans 6:

yashmit singh from la blossom school, jalandhar
Class : Class 6

Ans 7:

Aajani Datta from The Samhita Academy, Bangalore
Class : Class 5

Ans 8:

Arnav Raj Sharma from Dpsvk, Gurgaon
Class : Class 9
c

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Sanskriti Ranjan from SETH ANANDRAM JAIPURIA SCHOOL, Ghaziabad
Subject :NSO    Class : Class 7

Ans 1:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10
niten mohan : initially the reaction is neutral when lemon juice is added to magnesium hydroxide but if we kkep on adding more and more lemon juice one point will come when all the magnesium hydroxide will be neutrialised and the extra lemon juice will result acidic solution at the end. Ex : 25ml Mg(OH)2 35ml citric acid=acidic solution because 10 ml of extra citric acid.

Ans 2:

Niten Mohan from ,
Class : Class 2
when the resulting solution is neutral why is point 2- It turns blue litmus red,correct ?

Ans 3:

Manvik Singhal from KIS, noida
Class : Class 7
if we will add onlya drop of lemon juice to Mgoh then i would have a neutralizationb reactioj but it will not be very effective on it as it is a organic acid agais a strong acid

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