National Science Olympiad Forum By SOF Olympiad Trainer - Page 330
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Vihaan kohli from MVN Aravali, Faridabad
Subject :NSO    Class : Class 3

Ans 1:

SPRIHA SINGH from KV BEML Nagar, KGF
Class : Class 4
The correct answer is B.

Ans 2:

Ava from trio, bangalore
Class : Class 2
B

Ans 3:

Achyut Rai from THE KHAITAN SCHOOL, NOIDA
Class : Class 7
B

Ans 4:

Shruti from ,
Class : Class 1
B

Ans 5:

AADYA TANDON from DPS NOIDA SEC-30, Noida
Class : Class 5
B

Ans 6:

Advita Ghelani from Rustomjee Cambridge, Mumbai
Class : Class 3
Beena, Ashu and Shuchi because Kiwi, Ostrich, Emu cannnot fly Penguins have a thin coat of feathers All birds lay eggs THEY ALL HAVE BEAKS AND A BACKBONE

Ans 7:

Jivyan from KIIT world school, Gurgaon
Class : Class 3
b

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Syed Mohammad Hussain from ISAM, Muscat
Subject :NSO    Class : Class 5

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

When a bomb explodes, chemical energy stored in the chemicals that form the bomb converts into heat, sound and light energy.


Ans 2:

Shreejith from EuroSchool , Bangalore
Class : Class 7
CWhen a bomb explodes,chemical energy stored in the chemicals that form the bomb converts into heat, sound and light energy.

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Amol Athawale from WoodRidge High, aurangabad
Subject :NSO    Class : Class 8

Ans 1:

Daksha Swaminathan from Horiozon Scholars and Neo Kids, Mumbai
Class : Class 8

Ans 2:

Student from School, City
Class : Class 8
Silver can also react with SO2, sulphur dioxide, to tarnish.

Ans 3:

Ankit kumar Jha from Ryan International School , Ghaziabad
Class : Class 9
ans D is the correct answer as silver turns black after reaction to hydrogen sulphide

Ans 4:

Kaushik Srivatsa H from Bala Vidya Mandir Global, Bangalore
Class : Class 7
Silver turns black, not green. And also silver does not react with water. So, obviously D is the answer.

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aadityaarmaan from KVS Chabua, Dibrugarh
Subject :NSO    Class : Class 7

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
20 mL multiplied by 10 equals 200 ml.. likewise, multiply 1 min by 10. the answer is 10 minutes or 600 seconds.

Ans 2:

aarav shankar from st xaviers high school, gurugram
Class : Class 7

Ans 3:

Raksha Pankaj Jangam from Millennium National School , Karve naga pune
Class : Class 7

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saisavit from sri kumaran ps, bangalore
Subject :NSO    Class : Class 3

Ans 1:

akshitha from Euroschool, Bengaluru
Class : Class 3
d is the answer

Ans 2:

Ivan Tyagi from Chirec International School , Hyderabad
Class : Class 8
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Vedant Sharma from JPHS, Jaipur
Subject :NSO    Class : Class 5

Ans 1:

Dhairya from GREEN FIELDS SCHOOL, DELHI
Class : Class 8
a b c d

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ADITYA KISHOR from dps, gaya
Subject :NSO    Class : Class 9

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ADITYA KISHOR from dps, gaya
Subject :NSO    Class : Class 9

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ADITYA KISHOR from dps, gaya
Subject :NSO    Class : Class 9

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ADITYA KISHOR from dps, gaya
Subject :NSO    Class : Class 9

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