National Science Olympiad Forum By SOF Olympiad Trainer - Page 608
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Rushil Dubey from Acharyakulam, Haridvar
Subject :NSO    Class : Class 7

Ans 1:

Shriyam from Chinmaya vidyalaya Bokaro, Bokaro
Class : Class 7
Answer is C

Ans 2:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with D

Ans 3:

swagata ganguly from WWA COSSIPORE ENGLISH SCHOOL, KOLKATA
Class : Class 7
i wiil go with c

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Khushi singh from Presidium dwarka 22, Dwarka
Subject :NSO    Class : Class 7

Ans 1:

Dhruvan G from Indian School Al Ghubra, Muscat
Class : Class 8
It's (A) as evaporation causes cooling.

Ans 2:

Hritvi from Podar International School, Mumbai
Class : Class 7
A is the right option

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Mannat Verma from Vivek High School , Chandigarh
Subject :NSO    Class : Class 4

Ans 1:

Nishit Vaity from Euro School Airoli, Navi Mumbai
Class : Class 6

Ans 2:

Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Class : Class 4

Ans 3:

Sourish Mahakul from Delhi Public School Electronic City, Bengaluru
Class : Class 8
correct ans is b

Ans 4:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5
B😰

Ans 5:

Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Class : Class 4
ADMIN

Ans 6:

Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Class : Class 4

Ans 7: (Master Answer)

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

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Girish Jayan from National centre for excellence, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

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

Ans 2:

SOUVAGYA SAHA from De Nobili School, DHANBAD
Class : Class 10

Ans 3:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
c

Ans 4:

Girish Jayan from National centre for excellence, Bengaluru
Class : Class 5
http://www.sofolympiadtrainer.com/user/endTest/resultReport

Ans 5:

Shivangi from GEA, Mumbai
Class : Class 7
c

Ans 6:

Anay Misra from DPS Sector-122 Noida, Noida
Class : Class 6

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Pranav Kannan from Phoenix Greens, Hyderabad
Subject :NSO    Class : Class 3

Ans 1:

Pranav Kannan from Phoenix Greens, Hyderabad
Class : Class 3

Ans 2:

Eklavya Gondule from DPS Bhilai, BHILAI
Class : Class 7
w4aestdryuvghibj

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Aneesh Rajput from LOTUS VALLEY INTERNATIONAL SCHOOL, NOIDA
Subject :NSO    Class : Class 4

Ans 1:

Siddharth Laxmisha from The Study Lecole Internationale, PUDUCHERRY
Class : Class 8
No, Answer D is not correct. They are talking about red, blue, and green lights not red, blue, and green pigments in a leaf. Red and blue lights are efficient in photosynthesizing and the green pigment is also efficient in photosynthesizing. Here, they are talking about lights, not pigments in a leaf.

Ans 2:

vineet8026@gmail.com from dps, Doha
Class : Class 1
Thanks for the answer. ......

Ans 3:

vineet8026@gmail.com from dps, Doha
Class : Class 1
How???????

Ans 4: (Master Answer)

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

Ans 5:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Answer C is correct because Red and Blue light are absorbed and used for Photosynthesis . But in D it is written Green light is reflected ( correct ) but is used for Photosynthesis ( incorrect )

Ans 6:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
What????!!How?????!!!Please answer!!

Ans 7:

shreyansh2010 from Prudence, New Delhi
Class : Class 7
Answer D look like correct too

Ans 8:

shreyansh2010 from Prudence, New Delhi
Class : Class 7
Got it as green color reflected thus will not be used for photosynthesis

Ans 9:

Anushtubh Ashish Sonawane from Blue Ridge Public School, Pune
Class : Class 5
howwwwwwwww pls 4my sanity tell me

Ans 10:

Anantjit Chander from Apeejay School, Sector 15, Faridabad
Class : Class 10
But what is the explanation?

Ans 11:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 8

Ans 12:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Pls explainI agree with shreyansh2010

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Rikhil Gupta from Christ Academy, Bengaluru
Subject :NSO    Class : Class 9

Ans 1: (Master Answer)

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

Ans 2:

Kingshuk Gupta from RN Podar school, Mumbai
Class : Class 9

Ans 3:

from kv2, kalpakkam
Class : Class 9
i have got C

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nageshrc228 from sangameshwar public school, Solapur
Subject :NSO    Class : Class 4

Ans 1:

anu from Haralur, Bengaluru
Class : Class 5

Ans 2:

anu from Haralur, Bengaluru
Class : Class 5

Ans 3:

ikshika kumar from MVN SCHOOL, FARIDABAD
Class : Class 7
B) West

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sheetal Gupta from ,
Subject :NSO    Class : Class 5

Ans 1:

Siddhant Singhania from AGCS purulia, Puruliya
Class : Class 7

Ans 2:

Swarit from Indian School Wadi kabir, Muscat
Class : Class 6
this question is so hard

Ans 3:

Yash Tulshyan from Sterling school, New Mumbai
Class : Class 5

Ans 4:

Swarit from Indian School Wadi kabir, Muscat
Class : Class 6
Observe the given diagram carefully which shows a reflex arc. The diagram is show a finger touching the flame of the burning candle. The Sensory Neuron P takes the message of the burning finger to the Relay Neuron R in spinal cord. The Motor Neuron Q takes the message from the Relay Neuron R to the related muscle to act accordingly and pull the finger away. Now, if the orientation of Motor Neuron Q is changed (red arrow) and made as that of Sensory Neuron P, that means message from Motor Neuron Q will go from Muscle to the Relay Neuron R. Now, let’s check the following options to see what will happen: A.All voluntary movements of body including reaction to heat will stop. ----- Incorrect. Reaction to heat is an involuntary reflex response. It will stop if the orientation of Motor Neuron Q is changed. But voluntary movements of the body, which are in control of our brain, will go on. B.The sensory receptor will not get stimulus from the candle. ----- Incorrect. The orientation of Sensory Neuron P is still the same, so sensory receptors in spinal cord will continue to get the stimulus of heat from the candle. C.The motor organ will not be able to get instructions from the spinal cord. ----- Correct. The orientation of Motor Neuron Q has been changed, so instruction from spinal cord will not reach the motor organ (muscle). It will go from muscle to the spinal cord instead. D.None of these ----- Incorrect. Hence, the right answer is Option C.

Ans 5:

HIMANISH BASU from APS BANGALORE , Bangalore
Class : Class 7

Ans 6:

Pragun goel from Venkateshwar International School, Delhi
Class : Class 8

Ans 7:

Khushie from Gdgps gurugram, Gurgaon
Class : Class 5
C is correct

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sheetal Gupta from ,
Subject :NSO    Class : Class 5

Ans 1:

Khushie from Gdgps gurugram, Gurgaon
Class : Class 5
C

Ans 2:

JOVITA MERIN JOBI from BHAVANS VIDYA MANDIR ELAMAKKARA, KOCHI
Class : Class 5
The answer is C Because Tadpoles breath through gills but gills are not given in the grid

Ans 3:

SHAURYA SINHA from GREEN FIELDS SCHOOL , NEW DELHI
Class : Class 5
Ans- C

Ans 4:

Manasvi Nagpal from blooming dales international school, sri ganganagar
Class : Class 5
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