National Science Olympiad Forum By SOF Olympiad Trainer - Page 693
  1. Home
  2. /  Forum

User Forum

Ask Your Question
Supreet Birdi from Global Indian International School, Bangalore
Subject :NSO    Class : Class 5

Ans 1:

Praket Tejas from Delhi Public School Indira Nagar Lucknow, Lucknow
Class : Class 4
iojkbn

Ans 2:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
Yes, it is true, we can compare the movement to the joint mentioned as "P" with that of a joystick. It is a ball-socket joint, and it is found in the shoulders and the hips.

Ans 3:

Pratham Gupta from P G Garogdia, Mumbai
Class : Class 5
Correct answer is C

Ans 4:

anita from Manan Vidya Ranchi, Ranchi
Class : Class 4
D

Ans 5:

bharati nath from Springdale high school, Kalyani
Class : Class 6

Ans 6:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7
SOF is wrong . The answer should be C as Ball and socket joint is only found in arms and legs . It cannot come in the skull . Smita De is also absolutely right .

Ans 7:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7
WTH?

Ans 8:

Mathamagician from BGSNPS, Bengaluru
Class : Class 6
EASY. It is a). FOund it very quickly. I wonder why many of you put c)

Ans 9:

Ashee Srivastava from APEEJAY SCHOOL NOIDA , NOIDA
Class : Class 7
I did it c but according to SOF, it is a.

Ans 10:

Ashwak from Cambridge, Jalandhar
Class : Class 9
I think the answer is A

Ans 11:

Smita De from Bishop Cotton Girls School, BANGALORE
Class : Class 6
correct answer is supposed to be C. But according to SOF it is A.

Ans 12:

Ashee Srivastava from APEEJAY SCHOOL NOIDA , NOIDA
Class : Class 7
But a is the answer .

Ans 13:

Ashwak from Cambridge, Jalandhar
Class : Class 9

Ans 14:

Rimi from TLISK, pune
Class : Class 9
OH mene to d kiya tab laga ki sab wrong the.oh my god now acinfusing yar

Ans 15:

Syeda Safina Taj from Federal public school, Bengaluru
Class : Class 4
Answer a

Ans 16:

Advaith from National Public School, HSR Layout , Bengaluru
Class : Class 8
The question is asking to select the incorrect question, but option C is correct and option A is wrong so A is the correct answer

Ans 17:

Goutham Ram from Lecole' Chempaka International, Trivandrum
Class : Class 5

Ans 18:

Yashasvika from Euro World School, Sri Ganganagar
Class : Class 5
the answer is a but i did it c

Ans 19:

KONDURU TEJESH from Sri chaitanya international school, Bangalore
Class : Class 4
p is not pivot joint but a ball and socket joint but according to me c is the correct ans

Ans 20:

Pratham Dave from GNS, Bangalore
Class : Class 7
All of them are incorrect so the answer is D

Ans 21:

Agastya Tripathi from dps gurgaon, Gurgaon
Class : Class 4

Ans 22:

Ayushmaan from D, B
Class : Class 5
Nice question

Ans 23:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5

Ans 24:

Arav Gupta from Delhi Public School Gurgaon, Gurgaon
Class : Class 8
And the question said to find the incorrect option! So a.

Ans 25:

Riya from Bhavan Vidyalaya, Chandigarh
Class : Class 8
good question sligjhtly tricky

Ans 26:

Preeti tanwar from DON BOSCO ACADEMY, Patna
Class : Class 9
c

Ans 27:

harry potter from Hogwarts school of witchcraft and wizardry , london
Class : Class 5
but read the question... you have to select the incorrect ans

Ans 28:

Rimi from TLISK, pune
Class : Class 9
its a

Ans 29:

Niveideeta Cour from Suncity World School, Gurgaon
Class : Class 5
The correct answer is A) according to SOF

Ans 30:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
The correct answer is a but i did it wrong... (i did ans C)

Ans 31:

Biju Pappachan from Rkc , Raipur
Class : Class 1
The correct ans is A.

Ans 32:

marika from VTS, Mumbai
Class : Class 4
cool question

Ans 33:

Prerona Chatterjee from Delhi Public School North Kolkata, Kolkata
Class : Class 5
actually the picture P is wrong . they want to express it as pivot joint.

Ans 34:

Ashwak from Cambridge, Jalandhar
Class : Class 9
It's simple

Ans 35:

Devasree from Presidium, Ghaziabad
Class : Class 10
Soumya raj is correct answer should be c as ball and socket joint is only found in legs and arms and it is definitely not found in the skull .

Ans 36:

Rohan TR from Sri Aurobindo memorial school, Bangalore
Class : Class 6
Soumya raj is correct

Post Your Answer

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

Ans 1:

Shivam Dave from JAMNABAI NARSEE SCHOOL, Gandhinagar
Class : Class 7
It would be conducted on either 9th or 23rd November. Ask your school Olympiad Coordinator.

Ans 2:

Shivam Dave from JAMNABAI NARSEE SCHOOL, Gandhinagar
Class : Class 7
It would be conducted on either 9th or 23rd November. Ask your school Olympiad Coordinator.

Post Your Answer

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

Ans 1:

Shaurya Veer from Army Public School ASC C and C , Bangalore
Class : Class 10
i agree@anurag

Ans 2:

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

Ans 3:

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.

Post Your Answer

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

Ans 2:

Mahadevan from KV Rubber Board Kottayam, Kottayam
Class : Class 9
answer is C

Ans 3:

Hari Govind from Delhi Public School Chandigarh , Chandigarh
Class : Class 6
d

Ans 4:

Sri Susrutha Chowdary Karnati from Vibgyor high , Bangalore
Class : Class 8
ANSWER IS D

Ans 5:

Srishti Verma from Basava International School, New delhi
Class : Class 5

Ans 6:

Durva Shah from SSRVM, Ahmedabad
Class : Class 6
Option DThe film of soapy water will burst as the water will get evaporated........

Ans 7:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
a b c d e f g h i j k l m n o p q r s t u v w x y z.......... Confusing .......... z y x w v u t s r q p o n m l k j i h g f e d c b a

Ans 8:

Rishi from Deens Academy, BENGALURU
Class : Class 7
mo the film will pop so ans is d

Post Your Answer

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

Ans 1:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
I Don't Understand?

Ans 2:

Jeevi Ran from THANGAM MOUNT litera zee school at AYOTHIYAPATTINAM , Salem
Class : Class 6
A

Ans 3:

Raghav from DPS Gurgaon, Gurgaon
Class : Class 5
A

Ans 4:

avighna wuthoo from The bishop school , PUNE
Class : Class 7

Ans 5:

yajur from dps vk, delhi
Class : Class 3

Ans 6:

Aryan Swain from Kendriya Vidyalaya, Barimul, Kendrapara
Class : Class 5
A is not a mirror image. @SOF Please change the answer.

Ans 7:

Jeet Anandani from Pawar public school, Mumbai
Class : Class 4
aa

Ans 8:

Alisha from Delhi Public School , bopal, Ahemdabad
Class : Class 8
A IS NOT A MIRROR IMAGE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 9:

Ava from trio, bangalore
Class : Class 2
C

Ans 10:

SRISANTH from Edify, Tirupathi
Class : Class 5
A is almost a symmetrical figure

Ans 11:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 9

Ans 12:

Jeet Anandani from Pawar public school, Mumbai
Class : Class 4
a

Ans 13:

Harishchandra C from narayana e techno school, chennai
Class : Class 5
THEY CAN TELL THAT WHICH IS NOT MIRROR IMAGE OR MIRROR IMAGE

Ans 14:

Jordan Cole from NCS Arakkonam, Arakkonam
Class : Class 3

Ans 15:

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

Ans 16:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 8
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 17:

TARA NAUTIYAL from CONVENT OF JESUS AND MARY, DEHRADUN
Class : Class 4
A is not a mirror image

Ans 18:

Soorya Tej R from Delhi Public School, Hyderabad
Class : Class 6

Ans 19:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Yes A is not a mirror image SOF change answer

Ans 20:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
In A the mirror image of B is wrong and in D it is not a mirror image.In fact A and D both are not mirror images .Hence, the confusion between A and D

Ans 21:

Samaira from Global Indian International School, Bangalore
Class : Class 8
I don’t understand how can d be the answer

Ans 22:

lavanya from bcm chd road, Ludhiana
Class : Class 5

Ans 23:

Shreeya Mangla from ASN Senior Secondary School, New Delhi
Class : Class 9

Ans 24:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
answer can be b

Ans 25:

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

Ans 26:

Rishik De Sarkar from Delhi Public School Gurgaon, Gurgaon
Class : Class 7
A

Post Your Answer

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

Ans 1:

Syeda Safina Taj from Federal public school, Bengaluru
Class : Class 4
Second lever

Ans 2:

Preeti tanwar from DON BOSCO ACADEMY, Patna
Class : Class 9
Second class lever

Ans 3:

Preeti tanwar from DON BOSCO ACADEMY, Patna
Class : Class 9
Second class lever

Ans 4:

Aryan Sirohi from Mount LItera Zee School, Bangalore
Class : Class 8
Second class lever.

Post Your Answer

ATHARVAA PAUNIPAGAR from VIBGYOR HIGH, GOREGAON, MUMBAI, Mumbai
Subject :NSO    Class : Class 1

Ans 1:

Anurag SARKAR from Julien Day school GANGANAGAR MADYAMGRAM, madyamgram ganganagar
Class : Class 5
PICTURE IS NOT CLEAR AT ALL

Ans 2:

ishan singh from gems modern academy , gorakhpur
Class : Class 2
I could not understand the plants

Ans 3:

Hanita from Freedom International school , Bangalore
Class : Class 5
What is the name of plant in A

Ans 4: (Master Answer)

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

Post Your Answer

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

Post Your Answer

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

Ans 1:

Trishar Das from Amity International School Noida, Noida
Class : Class 7
The d image also has striaght lines at the corners, so that could also be the answer. The answer choices are not correct.

Ans 2:

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

Post Your Answer

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

Ans 1:

Navneeth Reejish from Yuvabharati International school, Singapore
Class : Class 7
D is wrong.

Ans 2:

Twisha Arora from Modern Vidya Niketan, Sector - 17, Faridabad, Haryana, FARIDABAD
Class : Class 7
@Soumya Bajaj is right. @Vansh Garg, have you measured the sound's frequency in Decibels? The correct answer is A because the thinner the rubber band, the more it will strech and the more it will strech, the more sound it will produce.(Master Answer)

Ans 3:

Aarav Gupta from TSRS Aravali, Gurugram
Class : Class 7
The answer should be d because the rubber band is wider so it is striking back on the wooden piece on more area.

Ans 4:

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 5:

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 6:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
I will also agree with Ayushi

Ans 7:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
GIVE SOLUTION

Ans 8: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 9:

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

Ans 10:

Aarav Gupta from TSRS Aravali, Gurugram
Class : Class 7
The answer will be D because big rubber band so more sound as the wide rubber band is striking back on more part of the wooden piece.

Ans 11:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4
I have done some practical observations and found that the fatter rubber band produces louder sound than A,B,C .Correct ans... is D

Ans 12:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
D D D IT IS D I WILL TELL YOU IT IS DI WILL TELL YOU THAT I AGREEWITH SOMEONE OVER HERE CALLED AYUSHI

Post Your Answer