National Science Olympiad Forum By SOF Olympiad Trainer - Page 776
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kenisha from Venkat international public school, Bengaluru
Subject :NSO    Class : Class 3

Ans 1:

Kavin Karthick M from DPS bangalore east, Bengaluru
Class : Class 6
BOTH MASS AND LENGTH SHOULD BE SAME.

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kenisha from Venkat international public school, Bengaluru
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

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

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kenisha from Venkat international public school, Bengaluru
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

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

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Arnav Verma from Deens Academy, Bengaluru
Subject :NSO    Class : Class 5

Ans 1:

Sharad Jain from Presidium, Ghaziabad
Class : Class 5
It is option Q because when we heat it up , the solubility increases .

Ans 2:

abhinav from d a v public school, Angul
Class : Class 5
tell in experiment form

Ans 3:

abhinav from d a v public school, Angul
Class : Class 5

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VANI SHARMA from D.P.S. NOIDA, Noida
Subject :NSO    Class : Class 3

Ans 1:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4
please explain how

Ans 2:

Ishan Priyadarsi from Euro School, bangalore
Class : Class 6

Ans 3:

Shreya Shruti from Airforce school , Bengaluru
Class : Class 8

Ans 4:

Sourish Mahakul from Delhi Public School Electronic City, Bengaluru
Class : Class 8
Option C is correct

Ans 5:

Raunak Jeswani from Centre point Katol road , Nagpur
Class : Class 3
PLEASE EXPLAIN HOW

Ans 6:

Aayan Choudhry from Yuvabharthi international school, Singapore
Class : Class 3
Both North and South have the sunlight from morning to afternoon so maximum time of sunlight. East has only morning and west has only afternoon so they have lesser time

Ans 7:

Dhruv Sachdev from Bhavan Vidyalaya, chandigarh
Class : Class 8
ANS IS C

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ankitadasgupta from dps, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

Kavyam Agrawal from Delhi Public School Nerul, Navi Mumbai
Class : Class 7

Ans 2: (Master Answer)

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

Ans 3:

Keratin from Chrysalis High, Bangalore
Class : Class 8
The correct answer is B. In 4sec the objet increases its speed to 200m/s . Acceleration=(200-0)÷4 = 50m/s^2. S=ut 1/2×at^2. Solve it you'll get 400m. a=acceleration(50), t=time(4), u=initial velocity(0) and s is displacement(consider it distance travelled)

Ans 4:

Arnav Ranka from Gyan Bharati School, Saket, New Delhi
Class : Class 9
How is it 200m? I am getting 800m.

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KADALI VAMSIKRISHNA from BVM GLOBAL AT BOLLINENI HILLSIDE, Chennai
Subject :NSO    Class : Class 5

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Pratyush Chandra from Bal Bhavan Public School, New Delhi
Subject :NSO    Class : Class 8

Ans 1:

Anjisnu Raha from SBOA School and Junior College, Chennai
Class : Class 9
sea weed and bird only are in line with the laser. we can see only these.

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Preetha Joshi from ,
Subject :NSO    Class : Class 8

Ans 1:

Dr Anupa Ghosh from ,
Class : Class 8
Coal is a fuel with high carbon content derived from destructive distillation of coal.

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Preetha Joshi from ,
Subject :NSO    Class : Class 8

Ans 1:

prabhkhelSingh from Hra international school, Gurdaspur
Class : Class 6
correct answer is D because in the reactivity series,copper lies below hydrogen which means that hydrogen cannot be displaced by copper from its salt solution.

Ans 2:

Dr Anupa Ghosh from ,
Class : Class 8
The correct option is D. Because if you see the reactivity table copper is placed below hydrogen.So it is not more reactive than hydrogen and cannot replace it from its compound.

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