National Science Olympiad Forum By SOF Olympiad Trainer - Page 646
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A Kumar from SNSVM, East Singhbhum
Subject :NSO    Class : Class 7

Ans 1:

Hritvi from Podar International School, Mumbai
Class : Class 7
Answer is D. There is no way it can be C because the temperature of iron ball is greater than that of water

Ans 2:

arvin from KC INTERNATIONAL SCHOOL JAMMU, Jammu
Class : Class 7
In Question of Snow The answer is C and not A

Ans 3:

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi
Class : Class 10
Answer is D. 35 C = 308 K , but in question it says 305 K.

Ans 4:

A Kumar from SNSVM, East Singhbhum
Class : Class 8
who lol written this

Ans 5:

Ryan Ganguly from Ebenezer International School, Bangalore
Class : Class 8

Ans 6:

ANUSHKA PARIDA from INDIRA NATIONAL SCHOOL, PUNE
Class : Class 9
answer is wrong. u yourself have written that ball has higher temperature.so the answer should be C

Ans 7:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7

Ans 8:

Joahanna Gabriel from Christwood school, Chennai
Class : Class 9

Ans 9:

Akshara from NPS, Bengaluru
Class : Class 8
The answer is D only.. They have changed it.

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siddarth from DPS Ecity, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
B

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

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siddarth from DPS Ecity, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
C

Ans 2:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
C

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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Debeesmita Lenka from DAV PUBLIC SCHOOL CHANDRASEKHARPUR, BHUBANESWAR
Subject :NSO    Class : Class 5

Ans 1:

Aswath Krishna from DPS EAST, Bengaluru
Class : Class 6
C is the correct answer as comparatively wind will make the clothes dry the fastest.

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Sayyed Saad Aman from Gurukul English School,Beed, Beed
Subject :NSO    Class : Class 3

Ans 1:

Vidit Kishore from Johnson Grammar School, Hyderabad
Class : Class 4

Ans 2:

Advaith from Lvis, Gurgaon
Class : Class 5

Ans 3:

Sagnik Roy from Nava Nalanda Santiniketan Shakha, Bolpur
Class : Class 8
C

Ans 4:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4
C is then answer not D

Ans 5:

aarav m from kumarans, bengaluru
Class : Class 3
Yes,answer is D

Ans 6:

Priyanshi Pritam from Vibgyor High, Bangalore
Class : Class 4
d

Ans 7:

Santina Suzanne from owis, bangalore
Class : Class 4
it is very hard

Ans 8:

Ashwak from Cambridge, Jalandhar
Class : Class 9
The correct answer is D not C .

Ans 9:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Answer is D , look at the Venn diagram once .

Ans 10:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Answer is D because Y is Duck and X is Penguin both are correct . Hence , answer D is correct .

Ans 11:

anu from The Amaatra Academy, Bengaluru
Class : Class 5
solve 5 56465685=

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

Saranya Kapoor from Shikshantar, Gurugram
Class : Class 10
the answer is (d), as calcium hydroxide is a base and it neutralises the effect of the acids in wastewater

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Praket Tejas from Delhi Public School Indira Nagar Lucknow, Lucknow
Subject :NSO    Class : Class 4

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Abhay rajvanshi from Delhi Public School, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

Vedant from DON BOSCO, CHENNAI
Class : Class 2
Answer is d

Ans 2:

Aaditya Nair Sujith from Mayoor Private School, Abudhabi, AbuDhabi
Class : Class 5
option a, because The graph shows that place X has temperatures in the range of 35 to 50°C thus it must be a hot and dry place. Animals living here adapt themselves to reduce sweating in order to prevent water loss from body.

Ans 3:

Shaurya Shinde from Goldcrest High Vashi, Navi Mumbai
Class : Class 8
1)When option 'a' choosed SOF shows option 'b' as correct answer and vica-versa. 2) In the book the correct answer is 'a' but over here it is showing as 'b'.

Ans 4:

Biju Pappachan from Rkc , Raipur
Class : Class 1

Ans 5:

Jibran Noorshah from Christ Academy, Bangalore
Class : Class 5

Ans 6:

NeilRaphaelVeigas from Rockwell International School, Hyderabad
Class : Class 6

Ans 7:

Rimi from TLISK, pune
Class : Class 9
Aryaveer and shourya shinde, maybe it be a technical error. But you are right

Ans 8:

Jibran Noorshah from Christ Academy, Bangalore
Class : Class 5
Answer is "A". Since there are technical glitches it shows it as "B"

Ans 9:

Nilarka Pahari from Young Horizons School, Kolkata
Class : Class 4

Ans 10:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5
ANSWER IS A I WROTE IT WRONG IN FORUM IT SHOWS A BRUH ;-;

Ans 11:

Biju Pappachan from Rkc , Raipur
Class : Class 1

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Pushti Shah from mount carmel, ahmedabad
Subject :NSO    Class : Class 6

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Gauri Singh from St Johns School Marhauli, Varanasi
Subject :NSO    Class : Class 5

Ans 1:

SelvaSundari Sundara Murugan from kendriya vidyalaya, chennai
Class : Class 5
Stomach will grind the food particles into smaller one and in small intestine only finally digestion will takes place and the nutrients will absorbed by blood.

Ans 2:

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

Ans 3:

Shivangi from St. Michael's High School, Patna
Class : Class 5
Small Intestine

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