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Rishit Verma from CMR NPS, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Sujal Satish Motagi from AJ Public School, Bengaluru
Class : Class 9
Answer is (c). Because flax is used to make linen which is obtained from flax stem. Wool is made from sheep's hair without harming it.

Ans 2:

Sarvesh I from Chennai Public School, Chennai
Class : Class 6
ANS is (a)and(c)Flax is obtained from plant stemSilk is obtained by harming silkworm

Ans 3:

Apeksha Singh from Cambridge School , Noida
Class : Class 3
Answer is option - (C)

Ans 4:

Amara Bhatia from HFSI, Mumbai
Class : Class 7
answer should be [d] since Jute comes from the stem of the jute plant and wool is sheared from sheeps etc. without harming the animal.

Ans 5:

Ritvik Nainawatee from Freedom International School, BANGALORE
Class : Class 6
Answer should be (c). Flax is obtained from stem of flax stem and wool is obtained without harming the sheep

Ans 6:

SAMRA BISWAS from KENDRIYA VIDYALAYA BARRACKPORE AIRFORCE, BARRACKPORE
Class : Class 9
Answer should be C ......

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Rishit Verma from CMR NPS, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

archit from Chinmaya Vidyalaya, Raibareli
Class : Class 8

Ans 2:

Sof Team from Sof Olympiad Trainer Helpdesk, Bangalore
Class : Class 7
cotton' is the cheapest natural fibre

Ans 3:

archit from Chinmaya Vidyalaya, Raibareli
Class : Class 8

Ans 4:

B HARI PAVAN from BHAVAN'S ARR SCHOOL, HYDERABAD
Class : Class 6
I think cotton is the cheapest, but the answer says jute is cheapest. So which is right C or D?

Ans 5:

Utkarsh Chakravarty from Pinnacle High International School, Mumbai
Class : Class 6
i did c because they are from seeds too but most are stems so d

Ans 6:

Ahamed Shayaan from Sree Gokulam public school , Calicut
Class : Class 6

Ans 7:

Shourya Ganesh from The Green Acres Academy, Mumbai
Class : Class 9
Answer is d

Ans 8:

Mrityunjay from Heritage International Xperiential School, Gurugram
Class : Class 8
I think Cotton is the cheapest fibre and someone from SOF help desk also says the same and the process of seperating cotton from cotton seeds is called Ginning only

Ans 9:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
The answer is b right?

Ans 10:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8

Ans 11:

SOUMYA SHAMBHAVI JHA from PODAR INTERNATIONAL SCHOOL, MUMBAI
Class : Class 6
The answer is not b

Ans 12:

Apeksha Singh from Cambridge School , Noida
Class : Class 3
The Answer is option D because Jute is known as the golden fibre and the process mentioned in the question is known as ginning

Ans 13:

Ritvik Nainawatee from Freedom International School, BANGALORE
Class : Class 6

Ans 14:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Flax is obtained from stem and jute is the cheapest natural fibre . So , the answer is D

Ans 15:

SOUMYA SHAMBHAVI JHA from PODAR INTERNATIONAL SCHOOL, MUMBAI
Class : Class 6
Jute is the cheapest natural fibre,not cotton!

Ans 16:

Snigdha swaminath from Christ nagar higher secondary school , Trivandrum
Class : Class 7
Cotton is the cheapest right??

Ans 17:

Aditya Kaushal from Delhi Public School Ruby Park , Kolkata
Class : Class 7
I think that cotton is the cheapest natural material , not jute and so does a sof help desk employee

Ans 18:

amogh from DELHI PUBLIC SCHOOL NOIDA, Ghaziabad
Class : Class 6
The correct answer is (D) as jute is the cheapest fibre . and stem of the flax plant provides fibres

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Rishit Verma from CMR NPS, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Saanvi from rvk, bengaluru
Class : Class 9
correct answer is a

Ans 2:

Jahnvi Bajpai from Vibgyor High, Banagalore
Class : Class 6
angora wool is obtain by angora rabbit and not angora sheep. Coir is obtained by the husk of a coconut

Ans 3:

Ojaswi from SAINT JOHNS CONVENT SCHOOL LANSDOWNE, DELHI
Class : Class 6
angora wool is obtain by angora rabbit and not angora sheep. Coir is the outer covering of coconut

Ans 4:

Aadhira from velammal new gen school, Medavakkam, Chennai
Class : Class 6
The correct answer is (A)

Ans 5:

UMA Subramanian from Global Indian International School, Singapore
Class : Class 7

Ans 6:

Anushka Srivastava from Cjm, Dehradun
Class : Class 7

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Rishit Verma from CMR NPS, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Krithi Manasvini from Alwin Memorial Public School, Chennai
Class : Class 7
The correct Ans is D because In the given flow chart, P is an animal fibre like wool or silk. Q could be jute, flax or hemp. R is sisal and S is cotton. Wool is used in winter clothing while cotton is used for summer clothing. Plant stem fibres like jute, flax, hemp are generally used for making bags, ropes, carpets, etc. Sisal which is a leaf fibre is also used for almost same purposes.

Ans 2:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6
cotton fibre is obtained from the fruit of the cotton plant

Ans 3:

Saipriya from Sankara, Chennai
Class : Class 9
Bengluru poor science schools

Ans 4:

Darsh Singh from The Deens Academy, Bengaluru
Class : Class 6

Ans 5:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 6:

Madhav from Kendriya Vidyalaya Ernakulam, Ernakulam
Class : Class 8

Ans 7:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 9

Ans 8:

Dushyant Singh from Shree Ram Centenial School, Indore
Class : Class 9
d

Ans 9:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10

Ans 10:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 11:

Aahan Jain from ,
Class : Class 1

Ans 12:

Saipriya from Sankara, Chennai
Class : Class 9
how can wool/silk and cotton be excellent winter clothing. WOrst option. And Nishka Rawat - Fibres from cotton are obtained from seeds. WOrst science readers................. Worst option too for Sof trainer

Ans 13:

Rishit Verma from CMR NPS, Bengaluru
Class : Class 6

Ans 14:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune
Class : Class 9
there were multiple wrong answers

Ans 15:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 16:

Kashvi Rawat from Gear Innovative International School, Bengaluru
Class : Class 3
Cotton is not obtained from seed of plant so cotton can not be S!

Ans 17:

Rishit Verma from CMR NPS, Bengaluru
Class : Class 6

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prarthana nath from Gundecha education academy, Mumbai
Subject :NSO    Class : Class 3

Ans 1:

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

Ans 2:

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

Ans 3:

Darshini Chakravarty from Pinnacle High International School, Mumbai
Class : Class 4

Ans 4:

Anagh Agrawal from Billabong high, JABALPUR
Class : Class 3
Yessssss

Ans 5:

Riddhiman Bose from Don Bosco School, Kolkata
Class : Class 5
yessssssssssssssssss

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Kavitharini Joseph from HUS, Chennai
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Aamena Shahid Ansari from St. Xavier's high school, Vapi, Gujarat
Class : Class 4
The answer is option “c”. see it was boiling water, she poured first into container “a” so it will be having the highest temperature than she poured to container b than to c and finally to container d so during this experiment the boiling water goes to lowest temperature and the last container was container d . So container a will be having the highest temperature and container d will be having the lowest temperature.

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Garima shokeen from N K Bagrodia Public School, New Delhi
Subject :NSO    Class : Class 9

Ans 1:

Shalin Jain from NKDAV Sidheegram, Sidheegram
Class : Class 9
Option D

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Garima shokeen from N K Bagrodia Public School, New Delhi
Subject :NSO    Class : Class 9

Ans 1:

Shrestha Dutta from Julien Day School, KALYANI
Class : Class 10
opt c is correct

Ans 2:

SAKSHI KOTHARI from NAVRACHNA SCHOOL SAMA, Vadodara
Class : Class 7
a

Ans 3:

Shalin Jain from NKDAV Sidheegram, Sidheegram
Class : Class 9
Option A

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AKSHITA DIXIT from R K SARDA VIDYA MANDIR, RAIPUR
Subject :NSO    Class : Class 6

Ans 1:

SOUMYA SHAMBHAVI JHA from PODAR INTERNATIONAL SCHOOL, MUMBAI
Class : Class 6
centrifugation is a process in which a substance is spun at a very high speed to separate minute particles. For eg. Blood is spun at a high speed to separate particles such as red and white blood cells, plasma platelets, and plasma.

Ans 2:

Anika Saha from New Town School, KOLKATA
Class : Class 6
the answer is A.

Ans 3:

Advait talnikar from Dhruv Global School, Sangamner
Class : Class 6
The answer is A

Ans 4:

Srinwanti from Ekya, bangalore
Class : Class 8

Ans 5:

Atul Sanjeev from Indian School Al Ghubra, Muscat
Class : Class 9
What is centrifugation

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Shridhar from G G International school, Pune
Subject :NSO    Class : Class 3

Ans 1:

SARTHAK.SHUKLA from Delhi Public School, Noida, Noida
Class : Class 3
The question has all mirror images...... So answer has to be a mirror image.

Ans 2:

Punita Ghosh from Billabong High International School, mumbai
Class : Class 5
c as it is facing opposite side

Ans 3:

nandini from father agnel school, Noida
Class : Class 7
option c is opposite like all the letters in the figure

Ans 4:

Ashwak from Cambridge, Jalandhar
Class : Class 9

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Yes , the answer is C .

Ans 6:

nandini from father agnel school, Noida
Class : Class 7
becase in the figure all the letters seem to be in the opposite direction while options a b and d are not showing them in th opposite direction and option c is showing

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