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Harini senthilkumar from Maharishi vidhya mandir, Chennai
Subject :NSO    Class : Class 5

Ans 1:

Niketu Dave from JAMNABAI NARSEE SCHOOL, Gandhinagar
Class : Class 6
It would be conducted on either 9th or 23rd November. Ask your school Olympiad Coordinator.

Ans 2:

Niketu Dave from JAMNABAI NARSEE SCHOOL, Gandhinagar
Class : Class 6
It would be conducted on either 9th or 23rd November. Ask your school Olympiad Coordinator.

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Achintya k j from KENDRIYA VIDYALAYA GOLE MARKET, NEW DELHI
Subject :NSO    Class : Class 7

Ans 1:

Anurag Peddi from Niraj International School, Hyderabad
Class : Class 9
I think the answer is C. If it contains H+ ions less than OH- ions, the substance is a base.

Ans 2:

Anurag Peddi from Niraj International School, Hyderabad
Class : Class 9
base turns yellow with methyl orange.

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John Calvin from vaels billabong, kottiwakkam
Subject :NSO    Class : Class 5

Ans 1:

Vihaan malhotra from The shriram school, New delhi
Class : Class 5
C

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Shruti Rajshree from NPS Indiranagar, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 4
They were trying to show the mirror image but OptionA is not shown correctly as the mirror image. Hence the confusion. between A and D.

Ans 2:

avighna wuthoo from The bishop school , PUNE
Class : Class 5

Ans 3:

lavanya from bcm chd road, Ludhiana
Class : Class 4

Ans 4:

Harsh Sobti from ABC, BLR
Class : Class 5
answer can be b

Ans 5:

atharv from bluebells international, delhi
Class : Class 4

Ans 6:

Adit Aggarwal from Vibgyor High, Bengaluru
Class : Class 5
A is not a mirror image. Requesting SOF to correct the same.

Ans 7:

SRISANTH from Edify, Tirupathi
Class : Class 4
A is almost a symmetrical figure

Ans 8:

Harishchandra C from narayana e techno school, chennai
Class : Class 4
THEY CAN TELL THAT WHICH IS NOT MIRROR IMAGE OR MIRROR IMAGE

Ans 9:

Arnav Thombare from DAV Public School Thane, Thane
Class : Class 4

Ans 10:

Jordan Cole from NCS Arakkonam, Arakkonam
Class : Class 3

Ans 11:

Samaira from Global Indian International School, Bangalore
Class : Class 4
I don’t understand how can d be the answer

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Mridul Jain from Shishukunj International School Indore, Indore
Subject :NSO    Class : Class 4

Ans 1:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 5
D is the answer.

Ans 2:

Samaira from Global Indian International School, Bangalore
Class : Class 4
There is a mistake in the question..........the option a and b are repeatedI reported an error on this...

Ans 3:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 4
Sorry the correct answer is C

Ans 4:

Ishit Rai from EUROSCHOOL THANE, THANE WEST
Class : Class 5
Can you tell the answer of this question

Ans 5:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 4
C IS THE ANSWER

Ans 6:

Samaira from Global Indian International School, Bangalore
Class : Class 4

Ans 7:

Aajani Datta from The Samhita Academy, Bangalore
Class : Class 4

Ans 8:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA
Class : Class 4
THE CORRECT ANSWER IS D

Ans 9:

BHAVESH PATRA from MOTHERS PUBLIC SCHOOL, BHUBANESWAR
Class : Class 5
Muddy water cannot be clarified by filtration as it contains fine particles such as clay .Sedimentation followed by decantation is the more suitable process for it.

Ans 10:

Maniska nayak from KIIT international, Bhubaneswar
Class : Class 4
filtration should be done when there are floating particles. here it should be decantation.

Ans 11:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 4
I AGREE THERE IS A MISTAKE BUT THE BEST METHOD IS FILTRATION

Ans 12:

Harish Divakar from Chennai public school global school, Chennai
Class : Class 4
I think evaporation could solve the problem

Ans 13:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 5
?????????????????????????????????

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DIYA NOBY from VISWAJYOTHI CMI PUBLIC SCHOOL, ANGAMALY
Subject :NSO    Class : Class 5

Ans 1:

Preeti tanwar from DON BOSCO ACADEMY, Patna
Class : Class 6
Second class lever

Ans 2:

Preeti tanwar from DON BOSCO ACADEMY, Patna
Class : Class 6
Second class lever

Ans 3:

Aryan Sirohi from Mount LItera Zee School, Bangalore
Class : Class 6
Second class lever.

Ans 4:

Syed zubair from Federal public school, Bangalore
Class : Class 6
Second lever

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ATHARVAA PAUNIPAGAR from Mainadevi Bajaj International School, Mumbai
Subject :NSO    Class : Class 1

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Yes. A is the answer.

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kalra Shaleen from Jalandhar, Jalandhar
Subject :NSO    Class : Class 2

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kalra Shaleen from Jalandhar, Jalandhar
Subject :NSO    Class : Class 2

Ans 1:

S.R.POORNA from Padma Seshadri Bala Bhavan Senior Secondary School, Chennai
Class : Class 2
d

Ans 2:

Trishar Das from Kothari International School, Noida
Class : Class 4
The d image also has striaght lines at the corners, so that could also be the answer. The answer choices are not correct.

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Navneeth Reejish from Yuvabharati International school, Singapore
Subject :NSO    Class : Class 4

Ans 1:

Yoshna from Orchids the international School , Thane
Class : Class 5

Ans 2:

Ambit Biswas from Oriental Public School, Kalyani, Kalyani
Class : Class 5
The answer is D because A, B and C have thin rubber band and in D, the rubber band is Fat.

Ans 3:

Soumya Bajaj from Rainbow Internatinal School, kopergaon
Class : Class 4
AS THINNER RUBBER WOULD BE PULLED TO A MAXIMUM DISTANCE HENCE MORE SOUND.

Ans 4:

Ayushi from DPS Noida, Noida
Class : Class 4
Ans A would be right if it says Sharpest sound !Ans D is correct in this case as it ask loudest sound

Ans 5:

Navneeth Reejish from Yuvabharati International school, Singapore
Class : Class 6
D is wrong.

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