National Science Olympiad Forum By SOF Olympiad Trainer - Page 543
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B Ananda Sri Kaushal from Sentia, Hyderabad
Subject :NSO    Class : Class 9

Ans 1:

Raji Kesavadas from sree valluvanad vidya bhavan perinthalmanna, malappuram
Class : Class 9
B

Ans 2:

Anuj Bramhan from Satyajeet International English School , Mehkar
Class : Class 10
D

Ans 3:

Ethel shiju from National Public School Indiranagar, Bangalore
Class : Class 9
B

Ans 4:

Intekhab from Jamia senior secondary school, New Delhi
Class : Class 9
B

Ans 5:

D HARSHINI from ST MARTINS HIGH SCHOOL CHINTAL, HYDERABAD
Class : Class 10

Ans 6:

Naina Warjurkar from MDS Senior Secondary School , Udaipur
Class : Class 10
B

Ans 7:

Anuj Bramhan from Satyajeet International English School , Mehkar
Class : Class 10
D

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B Ananda Sri Kaushal from Sentia, Hyderabad
Subject :NSO    Class : Class 9

Ans 1:

Shreyas Bibhuty from D A V Public school thane, Mumbai
Class : Class 10

Ans 2:

Rishav from Elegant public school, Gaya
Class : Class 9
answer is "b"

Ans 3:

Shreyas Bibhuty from D A V Public school thane, Mumbai
Class : Class 10
the answer is 'b' .The plant cell does not burst in hypotonic solution because the plant cell wall exerts an equal pressure as exerted by the liquid in the cell.So this prevents it from bursting but after sometimes, the plant cell will burst.

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B Ananda Sri Kaushal from Sentia, Hyderabad
Subject :NSO    Class : Class 9

Ans 1:

Tanmay Mehta from Nirmala Convent high school, Renukoot
Class : Class 9
the correct answer is A it is given wrong in the test

Ans 2:

Hamza from Vels vidyasharam, KUNDRATHUR KANCHEEPURAM
Class : Class 9
The answer is B because initial temp is 0 the its heated to temp more than melting point so after melting it'll have latent heat of fusion ,therefore temp will be constant finally it will spike to a high temp shown by graph b

Ans 3:

Sampada from Hansraj model school, New Delhi
Class : Class 9
The correct answer is A

Ans 4:

timaan from sanskriti, delhi
Class : Class 6
The answer is A

Ans 5:

SHREYANKA from USHA MARTIN SCHOOL, MALDA
Class : Class 9

Ans 6:

Akshara from NPS, Bengaluru
Class : Class 8
Answer is A

Ans 7:

SONAL MUKUND SHINDE from PODAR INTERNATIONAL SCHOOL SANGLI, TASGAON
Class : Class 10

Ans 8:

TigerSounak from Kv cossipore, Kolkata
Class : Class 8
The answer is B

Ans 9:

Sohini Mondal from Apeejay School Noida , NOIDA
Class : Class 9
Why is the solution B? Can someone explain

Ans 10:

Meet vasani from HMP highschool, Dahanu
Class : Class 9

Ans 11:

Raghav Tyagi from birla vidya niketan, new delhi
Class : Class 10
the answer should be A. its given wrong in the test

Ans 12:

Bipasana from KV IIT Kanpur, Kanpur
Class : Class 9
Can someone explain the solution?

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Shreya Mahesh from Sri Sri Ravishankar Vidya Mandir, Bangalore
Subject :NSO    Class : Class 8

In the given figure, showing the ultrastructure of a plant cell, identify the parts marked as P and Q and select the correct option regarding these.

(i) Part P helps in osmoregulation.
(ii) Cellular respiration occurs in part Q.
(iii) Synthesis of sugars occurs in part Q.
(iv) Part P provides colour to flowers and fruits.

A (i) and (ii) only
B (i) and (iii) only
C (iii) and (iv) only
D (ii) and (iv) only


The figure is not clear for the students to identify the organelle

Ans 1:

Arnav Gangwar from DPS NOIDA, GAUTAM BUDH NAGAR
Class : Class 8
true

Ans 2:

Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Class : Class 8
its 'B'- Part P helps in osmoregulation and Synthesis of sugars occurs in part Q

Ans 3:

Adhrit from CHSV, Chennai
Class : Class 8
how the heck am i supposed to tell what q is, the figure is so blurry

Ans 4:

SAIRAM from TRIVENI TALENT SCHOOL, HYDERBAD
Class : Class 10

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Akshara from NPS, Bengaluru
Subject :NSO    Class : Class 5

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Akshara from NPS, Bengaluru
Subject :NSO    Class : Class 5

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Vibhor Mudgal from GBN School, Faridabad
Subject :NSO    Class : Class 4

Sarika read that woodlice are usually found under piles of damp rotting leaves. She suggested four possible explanations for this behaviour.
1. Woodlice need rotting leaves.
2. Woodlice find their food there.
3. Woodlice need dark conditions.
4. Woodlice need a damp environment.

The above diagram shows the experiment which Sarika had conducted. Which above explanation regarding the behaviour of the woodlice was tested by Sarika?

A 1
B 2
C 3
D 4


Ans.4

Ans 1:

Aarathy Sudhir Aarav Sudhir from Global Indian International School, Abu Dhabi
Class : Class 6
The Solution is not explaining in a way through which we can undestaand

Ans 2:

Vibhor Mudgal from GBN School, Faridabad
Class : Class 4
4

Ans 3:

Vibhor Mudgal from GBN School, Faridabad
Class : Class 4
4

Ans 4:

VISHISHT S PILLAI from Bethany High School, Bangalore
Class : Class 4
This question is too complicated

Ans 5:

Aryan Bomanwar from Chirec international School, HYDERABAD
Class : Class 6

Ans 6:

Arnesh from DPS Mathura Road , New Delhi
Class : Class 7
I also didn't understand the question.

Ans 7:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
tough

Ans 8:

Anantjit Chander from The Modern School, Sector 85, Greater Faridabad, Faridabad
Class : Class 8
Does anyone have an explanation here?

Ans 9:

Raunak from The Shriram Mellinium School, gurgaon
Class : Class 7
dont understand it

Ans 10:

Aarathy Sudhir Aarav Sudhir from Global Indian International School, Abu Dhabi
Class : Class 6
It is easy, read the solution propperly and then you find the answer

Ans 11:

Ishaan Singh from BBPS, Gurugram
Class : Class 7

Ans 12:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6

Ans 13:

Shaurya Srivastava from delhi public school, navi mumbai
Class : Class 6
COMPLICATED stuff!!!!!.......

Ans 14:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
I don't get it.I wish that the person who's answer is always labelled as Master Answer,Admin from reviwise comes and answers this question.

Ans 15:

Niharikaa Pande from BILLABONG HIGH INTERNATIONAL SCHOOL MALAD, Mumbai
Class : Class 6
Why is the answer D? This is because it says that woodlice are found typically under damp rotting leaves. For the test, Sanika kept rotting leaves on dry and damp soil. If you read the question carefully, you will find that Sanika had stated that woodlice needed a damp environment as a possible explanation as to why woodlice were found under damp rotting leaves. She even placed the woodlice pointing to the rotting leaves with damp soil under it. Based on this, she was most probably testing the 4th explanation she stated and so that, my friends, is why option D is the correct answer.

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samarveer from dpsg, dehradun
Subject :NSO    Class : Class 4

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dhruv jain from JAYSHREE PERIWAL international school, Jaipur
Subject :NSO    Class : Class 4

Ans 1:

Vibhor Mudgal from GBN School, Faridabad
Class : Class 4
There Are 6 LARGEST Fishes in The World.(1) Great White Shark.(2) Beluga.(3) Greenland Shark.(4) Basking Shark.(5) Giant Oarfish.(6) Whale Shark.

Ans 2:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
The answer is- The blue whale.

Ans 3:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
The answer is- The blue whale.

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Aditya Sai Vemparala from Amanora school, Pune
Subject :NSO    Class : Class 6

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