National Science Olympiad Forum By SOF Olympiad Trainer

User Forum

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Spinal cord sometimes acts as brain

Ans 2:

Class : Class 5

Ans 3:

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

Ans 4:

Class : Class 5
without brain how will we move

Ans 5:

Class : Class 6
the brain should be there

Ans 6:

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

Ans 7:

Class : Class 6
without brain's indicator how nerves will pull hands?

Ans 8:

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

Ans 9:

Class : Class 4
Where is brain

Ans 10:

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

Ans 11:

Class : Class 4
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 12:

Class : Class 4
What about Brain?

Ans 13:

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 14:

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

Ans 15:

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

Ans 16:

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

Ans 17:

Class : Class 3
No Answer: D were is brain

Ans 18:

Class : Class 3
It can never be like that.

Ans 19:

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

Ans 20:

Class : Class 3
OH,Nooooooooooooooooooooooooooooooooooooooooooooooooooooooooo|

Ans 21:

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

Post Your Answer

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
asteroids have a highly elliptical orbit unlike planets. planets have round orbits.

Ans 3:

Class : Class 5
c

Ans 4:

Class : Class 6
Option C and A are both correct

Ans 5:

Class : Class 6
option A is the correct answer

Ans 6:

Class : Class 7
Option C is the correct answer

Ans 7:

Class : Class 5
It cannot be A as asteroids orbit the sun

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

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 2:

Class : Class 5

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 6
ORION IS THE ANSWER TO THIS QUESTION

Ans 5:

Class : Class 6
It is Orion but it is showing c

Ans 6:

Class : Class 5

Ans 7:

Class : Class 6

Ans 8:

Class : Class 7
orionit must have been a mistake to write c on both.

Ans 9:

Class : Class 6

Ans 10:

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

Ans 11:

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

Ans 12:

Class : Class 6
Orion

Ans 13:

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 14:

Class : Class 8
YES,IT ISORION,THE GREAT

Ans 15:

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

Ans 16:

Class : Class 6
click d they have done mistake

Ans 17:

Class : Class 6
YES THE ANSWER IS ORION

Ans 18:

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 19:

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 20:

Class : Class 6

Ans 21:

Class : Class 8
Orion

Ans 22:

Class : Class 5
part c

Ans 23:

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

Ans 24:

Class : Class 5
orion

Ans 25:

Class : Class 5

Ans 26:

Class : Class 5
with my luck ,i did D

Ans 27:

Class : Class 5

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
B

Ans 2:

Class : Class 6
B

Ans 3:

Class : Class 5
B

Ans 4:

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

Ans 5:

Class : Class 6
B is the answer

Ans 6:

Class : Class 8

Ans 7:

Class : Class 1

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 5
a

Ans 3:

Class : Class 6
Yes Fareeha siddiqua the answer is D

Ans 4:

Class : Class 5

Ans 5:

Class : Class 5

Ans 6:

Class : Class 6

Ans 7:

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

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
what is gggggggggg you are mad?

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
you are fully mad ? 555

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
how???

Ans 2: (Master Answer)

Class : Class 1
Mechanical Force.

Ans 3:

Class : Class 5
Mechanical force

Ans 4:

Class : Class 5

Ans 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

Class : Class 7

Ans 9:

Class : Class 6
Mechanical Force

Ans 10:

Class : Class 5

Ans 11:

Class : Class 5
It is mechanical

Ans 12:

Class : Class 3
c is correct

Ans 13:

Class : Class 8
mechanical

Ans 14:

Class : Class 7
How the answer is D . Mechanical force

Ans 15:

Class : Class 5
How is it mechanical? Please explain

Ans 16:

Class : Class 4
answer D

Ans 17:

Class : Class 8
mechanical

Ans 18:

Class : Class 5

Ans 19:

Class : Class 6
It is frictional force

Ans 20:

Class : Class 5

Ans 21:

Class : Class 7

Ans 22:

Class : Class 6
It is option C

Ans 23:

Class : Class 5

Ans 24:

Class : Class 7
how is it mechanical force?

Ans 25:

Class : Class 8
mechanical

Ans 26: