National Science Olympiad Forum By SOF Olympiad Trainer - Page 549
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Harshit Singh from Dehli Public School, Sector-102A, Gurgaon, Gurgaon
Subject :NSO    Class : Class 3

Ans 1:

Soumyajit Das from Hariyana Vidya Mandir, NORTH 24 PARGANAS
Class : Class 6
R. Fragile S. Allows light to pass T. Flexiblecorrect answer: option 'b'

Ans 2:

AARNA GARG from bethany high school, Bangalore
Class : Class 4
yes

Ans 3: (Master Answer)

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

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

Ans 1:

ANANYA.MUKHERJEE.5.lvisn from lvis, noida
Class : Class 5
Because a tv converts electrical energy and not chemical energy.

Ans 2:

AREEN from BOLTON, HYDERABAD
Class : Class 6
Ans is C because bomb has chemicals and whan a bomb bursts, it creates sound energy, and raditions, which is light energy.

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Harshit Singh from Dehli Public School, Sector-102A, Gurgaon, Gurgaon
Subject :NSO    Class : Class 3

Ans 1:

Aathmika Shetty from Shriniketana School, Sirsi
Class : Class 4

Ans 2:

Kashika Goel from DPS Noida, Noida
Class : Class 6

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 8
Yes , the correct answer is B .

Ans 4: (Master Answer)

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

Ans 5:

samarth kshatriya from delhi public school,bhilai, bhilai
Class : Class 3
class - 3

Ans 6:

Adya from DPS Noida, Noida
Class : Class 4

Ans 7:

Krishiv Chandan Sukul from Seven 11 Scholastic School, Mumbai
Class : Class 5

Ans 8:

samarth kshatriya from delhi public school,bhilai, bhilai
Class : Class 3
the correct answer is B

Ans 9:

Aathmika Shetty from Shriniketana School, Sirsi
Class : Class 4
Yes correct the answer is B

Ans 10:

Dripto Goswami from Aditya Academy Secondary, Barasat, Barasat
Class : Class 7

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Ishaan Roy from Sri Chaitanya Techno School, Bengaluru
Subject :NSO    Class : Class 6

Refer to the given paragraph.
The two main types of root are X and Y. X roots are mostly found in plants having leaves with reticulate venation, while Y roots are mostly found in plants having leaves with parallel venation.
Select the incorrect statement regarding X and Y.

A Radish, turnip and carrot are modifications of X.
B X is found in gram while Y is found in barley.
C X spreads horizontally hence cannot provide strong anchorage whereas Y penetrates very deep into the soil hence provides strong anchorage.
D In Y, primary root is short-lived while X has persistent primary root.


Ans 1:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
question very difficult especially for only 20 mins test time

Ans 2:

Samitha Kumar from Boaz Public School , Chennai
Class : Class 10

Ans 3:

NISHTHA GUPTA from DPS R K Puram, newdelhi
Class : Class 10
shut up ! stop giving weird question where we gunna find da answers weirdos

Ans 4:

Archana from Opg World School, New Delhi
Class : Class 7

Ans 5:

Utsavi Priya from DPS RUBY PARK, KOLKATA
Class : Class 8
so bad and lengthy questions ??!!

Ans 6:

LAVANYA DADHWAL from BLOOM PUBLIC SCHOOL, South West Delhi
Class : Class 7
Usually leaves having reticulate venation have tap roots and leaves having parallel venation have fibrous root, hence the answer is c because tap roots provide better anchorage than fibrous root

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Devang Bansal from St Kabir Public School, Chandigarh
Subject :NSO    Class : Class 9

Ans 1:

venkatt ramanaw from DePaul School ICSE Ukkunagaram, Visakhapatnam
Class : Class 9
C-It remains constant throughout.

Ans 2:

from , Nanded
Class : Class 10
C- It must remain constant through out.

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Harshit Singh from Dehli Public School, Sector-102A, Gurgaon, Gurgaon
Subject :NSO    Class : Class 3

Ans 1:

Anaahad Mehar Satsangi from Delhi Public School Agra, Agra
Class : Class 3
The answer is a

Ans 2:

kalra Shaleen from Jalandhar, Jalandhar
Class : Class 5
The answer is A

Ans 3:

Aryaveer And Shaurya Shinde from Goldcrest High Vashi, Navi Mumbai
Class : Class 9
Answer: AExplanation: Food is masticated with teeth and partially digested by the action salivary juices in the mouth (P).

Ans 4:

Shrihan Koley from Radiant International School , Patna
Class : Class 3

Ans 5:

Shrihan Koley from Radiant International School , Patna
Class : Class 3

Ans 6: (Master Answer)

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

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Ishaan Roy from Sri Chaitanya Techno School, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
uhhhhhhhhhhh how is opening of a bud a chemical change? the chemical compound does not change still so answer should be only 4 i think

Ans 2:

Ashwak from Cambridge, Jalandhar
Class : Class 8
Arnav opening of bud is a chemical change because then it turns into flower and is irreversible

Ans 3:

Shruthi Sanya from DPS, Bangalore
Class : Class 6

Ans 4:

Vedant from DON BOSCO, CHENNAI
Class : Class 2

Ans 5:

Devavrat Sharma from Podar International School Powai, Mumbai
Class : Class 7

Ans 6:

Iba khan from DPS GBN, Noida
Class : Class 6

Ans 7:

Himanshi yadav from St. Francis convent school,sikandra Agra, AGRA
Class : Class 7

Ans 8:

Arya Kiran from PSBB KK NAGAR, Chennai
Class : Class 9

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Gauri Chaturvedi from St. Joseph Convent, Jabalpur
Subject :NSO    Class : Class 6

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Both of them will fall because box II will come down due to gravity and box I will become heavier

Ans 2:

Ojas Patil from Vikhe Patil Memorial School Pune, Pune
Class : Class 7
c because of gravity 1 will fall. imbalance and so other will also fall

Ans 3:

Arushi from Indira National School, Pune
Class : Class 9
Both blocks will fall because there will be nothing to hold them.It is like a sea-saw balanced in the middle.If one person gets up,the other will go down.

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Dharini Manimaran from BVM Global @ Bollineni Hillside, Chennai
Subject :NSO    Class : Class 7

Kanav took two test tubes marked as I and II. In test tube I, he put calcium carbonate and hydrochloric acid while in test tube II, he put zinc granules and hydrochloric acid. He passed the gas coming out from both the test tubes in lime water. What would be his observation?


A The gas coming out from test tube I turned lime water milky.
B The gas coming out from test tube II turned lime water milky.
C The gases coming out from both the test tubes turned lime water milky.
D None of these.


it could have been simpler

Ans 1:

ansh rai from delhi public school, Bhilai
Class : Class 4
Answer should be A as zinc granules don’t react and produce co2 gas so it’s simple and answer should be A

Ans 2:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
A is the answer

Ans 3:

Pari Shiddam from PIS Powai, MUMBAI
Class : Class 7
they should have said correct statements. So the answer should be A

Ans 4:

ARIJIT SINGH from SAT PAUL MITTAL SCHOOL , Ludhiana
Class : Class 7

Ans 5:

Dhruvan G from Indian School Al Ghubra, Muscat
Class : Class 8
If it could have been simpler, then you don't have to study for these Olympiads as its too difficult. And I don't think it is very difficult and the option is (A) i think.

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prerak from cambridge court high school, jaipur
Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

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

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