National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 2
without brain there would be no reflex. Spinal cord is just a carrier through neurons..it's the brain which signals to pull back the hand from a hot kettle...not any other organs.

Ans 2:

Class : Class 3
Spinal cord sometimes acts as brain

Ans 3:

Class : Class 3
OH,Nooooooooooooooooooooooooooooooooooooooooooooooooooooooooo|

Ans 4:

Class : Class 3
It can never be like that.

Ans 5:

Class : Class 4
skin ,nerves ,spinal cord ,brain,Spinal cord, Nerves, Hand is pulled back

Ans 6:

Class : Class 5
without brain's indicator how nerves will pull hands?

Ans 7:

Class : Class 7
The answer B is correct because the Spinal Cord controls the Reflex Actions and if we touch a hot kettle and move our hand back, its a Reflex Action of course!!!

Ans 8:

Class : Class 6
the brain should be there

Ans 9:

Class : Class 3
skin-nerve-spinal cord-brain-nerve-hand pulled back

Ans 10:

Class : Class 6
how will the other parts get signal ?

Ans 11:

Class : Class 5
without brain how will we move

Ans 12:

Class : Class 3
The hand can't move without the signals of brain

Ans 13:

Class : Class 3
The option 'B' is the correct answer.

Ans 14:

Class : Class 5

Ans 15:

Class : Class 5
B - Skin → Nerves → Spinal cord → Nerves → Hand is pulled back

Ans 16:

Class : Class 4
it will be none of the above because there is no brain

Ans 17:

Class : Class 5
yeeeeeeeeeeeessssssssssss!!!!!!!!!!!!!

Ans 18:

Class : Class 4
Where is brain

Ans 19:

Class : Class 3
What about Brain?

Ans 20:

Class : Class 3
The option 'B' is the correct answer.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 4
Asteroids are small, irregular lumps of rock that move in orbits around the Sun. Most asteroids lie in a vast ring between the orbits of Mars and Jupiter. This is called asteroid belt that holds millions of asteroids. Asteroids can be classified into two broad groups based on their composition and location-carbon rich asteroids dominate the outer part of asteroid belt whereas metal rich asteroids dominate the inner part of belt.

Ans 2:

Class : Class 5
option A is the correct answer

Ans 3:

Class : Class 5
asteroids have a highly elliptical orbit unlike planets. planets have round orbits.

Ans 4:

Class : Class 6
Option C and A are both correct

Ans 5:

Class : Class 7
Option C is the correct answer

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Orion

Ans 2:

Class : Class 5
the answer is Orion but in laptop Cassiopeia and Orion are c so i clicked c but my answer is wrong. Same thing happened to me

Ans 3:

Class : Class 5
it is Orion luckily i did not see the option letter is wrong and clicked option D

Ans 4:

Class : Class 4
ORION IS THE ANSWER TO THIS QUESTION

Ans 5:

Class : Class 8
Orion

Ans 6:

Class : Class 5
Yes, the correct answer is Orion as Ursa Major, Ursa Minor and Cassiopeia are different in my iPads net. Don't worry I also got worried seeing the net but to me Orion is the right answer. Thank you.

Ans 7:

Class : Class 5
orion

Ans 8:

Class : Class 4

Ans 9:

Class : Class 5
with my luck ,i did D

Ans 10:

Class : Class 5
It is very bad I said d but it landed on a for some reason

Ans 11:

Class : Class 5
Pavitt Singh from Jodhamal Public Schoolthe correct answer is D

Ans 12:

Class : Class 5
I clicked d because Orion was the last but when the result came it was showing it wrong and it was marked like this your answer D correct answer D and it was showing wrong for me

Ans 13:

Class : Class 5
YES, it is indeed Orion the Great. Wrong answer was put in the system , but now it is corrected.

Ans 14:

Class : Class 6

Ans 15:

Class : Class 5
It is Orion but it is showing c

Ans 16:

Class : Class 6
orionit must have been a mistake to write c on both.

Ans 17:

Class : Class 6
the answer is orion but in laptop cassiopeia and orion are c so i clicked c but my answer is wrong

Ans 18:

Class : Class 7
YES,IT ISORION,THE GREAT

Ans 19:

Class : Class 5
click d they have done mistake

Ans 20:

Class : Class 6
YES THE ANSWER IS ORION

Ans 21:

Class : Class 5

Ans 22:

Class : Class 6

Ans 23:

Class : Class 4
Orion Orion Orion Orion Orion Orion!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 24:

Class : Class 5
part c

Ans 25:

Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
B

Ans 2:

Class : Class 8

Ans 3:

Class : Class 3
(b) Planet Venus is the hottest planet in our solar system

Ans 4:

Class : Class 4
B

Ans 5:

Class : Class 6
B is the answer

Ans 6:

Class : Class 1

Ans 7:

Class : Class 6
B

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 4
Yes Fareeha siddiqua the answer is D

Ans 3:

Class : Class 5

Ans 4:

Class : Class 6

Ans 5:

Class : Class 5
Venus and uranus rotate in clock wise direction but uranus is a gaseous planet so answer is D

Ans 6:

Class : Class 5
a

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
what is gggggggggg you are mad?

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
you are fully mad ? 555

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
How is it mechanical? Please explain

Ans 2:

Class : Class 5
Mechanical force

Ans 3:

Class : Class 5
how?

Ans 4:

Class : Class 8
mechanical

Ans 5:

Class : Class 6
Mechanical force is the only correct answer .

Ans 6:

Class : Class 7
how is it mechanical force?

Ans 7:

Class : Class 5
how???

Ans 8: (Master Answer)

Class : Class 1
Mechanical Force.

Ans 9:

Class : Class 8
mechanical

Ans 10:

Class : Class 5

Ans 11:

Class : Class 6

Ans 12:

Class : Class 5
how???????????????????????????????????????????????????????????????????????????is mechanical?????????????????????????????????????????????????????????????????

Ans 13:

Class : Class 4
It is option C

Ans 14:

Class : Class 5
It is mechanical

Ans 15:

Class : Class 8
how is it mechanical?

Ans 16:

Class : Class 5

Ans 17:

Class : Class 5

Ans 18:

Class : Class 6
How the answer is D . Mechanical force

Ans 19:

Class : Class 6
Can somebody explain why it is mechanical force ????

Ans 20:

Class : Class 5

Ans 21:

Class : Class 1
I did C frictional force but SOF says it is D mechanical force. How is it mechanical force?

Ans 22:

Class : Class 5
the corect answer is C

Ans 23:

Class : Class 5
The answer given by SOF is wrong so they have not given the solution to this question.

Ans 24:

Class : Class 5

Ans 25:

Class : Class 7

Ans 26:

Class : Class 4
answer D

Ans 27:

Class : Class 6
Mechanical Force

Ans 28:

Class : Class 5
push and pull are examples of mechanical force

Ans 29:

Class : Class 8
mechanical

Ans 30:

Class : Class 5
It is frictional force

Ans 31:

Class : Class 3
c is correct

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