National Science Olympiad Forum By SOF Olympiad Trainer - Page 599
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Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Subject :NSO    Class : Class 5

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Aryan Goyal from DPS , Dwarka, New Delhi
Subject :NSO    Class : Class 3

Ans 1:

PRABAL PANDEY from ,
Class : Class 3
D

Ans 2:

Kashika Goel from DPS Noida, Noida
Class : Class 6

Ans 3:

Arjun Gourineni from CHIREC International School, Hyderabad
Class : Class 7

Ans 4:

SS from meridian, hyderabad
Class : Class 5
ohh

Ans 5:

Kashika Goel from DPS Noida, Noida
Class : Class 6

Ans 6:

Ashwak from Cambridge, Jalandhar
Class : Class 8
A

Ans 7:

Advay Agarwal from Bal Bharati Public School , PITAMPURA
Class : Class 4
d

Ans 8:

Sneha Sarkar from South city international school, Kolkata
Class : Class 7

Ans 9:

Utsavi Priya from DPS RUBY PARK, KOLKATA
Class : Class 8
A

Ans 10:

PONMANIKANDAN PONRAJ from FAIPS, KUWAIT
Class : Class 3
The answer is A

Ans 11:

Sneha Sarkar from South city international school, Kolkata
Class : Class 7

Ans 12:

SHAUNAK from St Xaviers School, HAZARIBAG
Class : Class 3
The answer is A.

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Nilanjana De from Delhi Public School North, Bengaluru
Subject :NSO    Class : Class 7

An electric kiln has a device in it to prevent the kiln from getting too hot. The metals in the bimetallic strips expand at different rates and bend when heated. The contact points move apart and electric current stops flowing.

This device works when, _______.

AQ expands more than R, and P expands more than S
BR expands more than S, and Q expands more than P
CP expands more than Q, and R expands more than S
DP expands more than R, and S expands more than Q


Can someone explain this question with diagram?

Ans 1:

Vedang Darbari from Shiv Nadar School, Noida
Class : Class 8

Ans 2:

Praveen kumar from GD DAV Public school Bhandarkola Deoghar, deoghar
Class : Class 8
option B because of expansion the contact point get diverted

Ans 3:

Praveen kumar from GD DAV Public school Bhandarkola Deoghar, deoghar
Class : Class 8
option B because of expansion the contact point get diverted

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RISHIRAJ SONI from DELHI PUBLIC SCHOOL,RAIPUR, Raipur
Subject :NSO    Class : Class 6

Ans 1:

swapnil bhowmik from thakur public school, mumbai
Class : Class 6
not all physical changes are reversible

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Gaurav Mediratta from SRGS, Bengaluru
Subject :NSO    Class : Class 4

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Gaurav Mediratta from SRGS, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Rishita Sivakumar from Indian High School, Karama Dubai
Class : Class 9
d

Ans 3:

Aaryaman Pradhan from De paul School , Berhampur
Class : Class 5
d

Ans 4: (Master Answer)

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

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Gaurav Mediratta from SRGS, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Debarpan Das from Delhi Public School , Durgapur
Class : Class 9
Please tell the answer of this question

Ans 2:

SAMRIDDHI from Chirec International School, Hyderabad
Class : Class 4
A is write suvanjot check solution

Ans 3:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi
Class : Class 7
A IS RIGHT ANSWER

Ans 4:

Rachel from Mount litera Zee School Goa, Goa
Class : Class 7
Could somebody explain the meaning of the question.

Ans 5:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
Roshni is right

Ans 6:

suvanjot from spring dales, amritsar
Class : Class 4
B SHOULD BE THE RIGHT ANSWER BECAUSE WE ARE PLOTTING NO. OF DEATHS AND NOT NO. OF ORGANISMS...SO AS THE AMOUNT OF REFUSE INCREASES THE NO. OF DEATHS WILL INCREASE TILL ALL THE ORGANISMS DIE AND THUS THE DEATHS DECEASE

Ans 7:

SAMRIDDHI from Chirec International School, Hyderabad
Class : Class 4

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Gaurav Mediratta from SRGS, Bengaluru
Subject :NSO    Class : Class 4

Harshit wanted to find out among the four locations - playground, science laboratory, school garden and the bus stop outside his school - which is the most polluted. He placed four glass tiles smeared with petroleum jelly at the four locations for the same period of time for one day and recorded his observation. However, his teacher told him that his experiment was not reliable because he did not ________.

AWet the glass tiles
BUse tiles made of different materials
CRepeat the experiment over a few days
DExamine the tiles with hand lens


c

Ans 1:

niyati from kv 2, delhi
Class : Class 4

Ans 2:

Bushra aslam from uttam, Ghaziabad
Class : Class 8

Ans 3: (Master Answer)

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

Ans 4:

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

Ans 5:

SAMRIDDHI from Chirec International School, Hyderabad
Class : Class 4
how????????????

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Gaurav Mediratta from SRGS, Bengaluru
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

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

Ans 2:

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

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from Dav public school brs nagaR ludhiana, LUDHIANA
Subject :NSO    Class : Class 4

Ans 1:

yashmit singh from la blossom school, jalandhar
Class : Class 6
What the fuck

Ans 2:

Amogha from Hindustan international school, Guindy, Chennai
Class : Class 8

Ans 3:

Anay Shah from City Pride School, Pune
Class : Class 5

Ans 4:

Aneesh Rajput from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Class : Class 5

Ans 5:

shreyansh2010 from Prudence, New Delhi
Class : Class 7

Ans 6:

yashmit singh from la blossom school, jalandhar
Class : Class 6
Answer is fuck

Ans 7:

Aryan Swain from Kendriya Vidyalaya, Barimul, Kendrapara
Class : Class 5

Ans 8:

Nishchita from Gems Modern Academy , Dubai
Class : Class 8
I think the answer is C

Ans 9:

Aahana Agarwal from NPS Koramangala, Bengaluru
Class : Class 6
I didn't understand this . What does it mean ???

Ans 10:

TRINABH PANDA from NPSI, Chennai
Class : Class 6

Ans 11:

Student from School, City
Class : Class 8

Ans 12:

shreyash rawat from podar international school, pune
Class : Class 8

Ans 13:

aarush from A p international school, thane
Class : Class 4

Ans 14:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
aahana, do you know the ring of fire? if you do , you will know the answer

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