National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 4

Ans 2:

Class : Class 3
Where is brain

Ans 3:

Class : Class 3
without brain how will we move

Ans 4:

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

Ans 5:

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

Ans 6:

Class : Class 3
B - Skin → Nerves → Spinal cord → Nerves → Hand is pulled back

Ans 7:

Class : Class 3
What about Brain?

Ans 8:

Class : Class 3
It can never be like that.

Ans 9:

Class : Class 6
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 10:

Class : Class 3
skin ,nerves ,spinal cord ,brain,Spinal cord, Nerves, Hand is pulled back

Ans 11:

Class : Class 4
yeeeeeeeeeeeessssssssssss!!!!!!!!!!!!!

Ans 12:

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

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Option C is the correct answer

Ans 2:

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.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
the answer is orion but in laptop cassiopeia and orion are c so i clicked c but my answer is wrong

Ans 2:

Class : Class 5

Ans 3:

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 4:

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

Ans 5:

Class : Class 4
Orion

Ans 6:

Class : Class 3
YES,IT ISORION,THE GREAT

Ans 7:

Class : Class 5
orionit must have been a mistake to write c on both.

Ans 8:

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

Ans 9:

Class : Class 5

Ans 10:

Class : Class 6
Orion

Ans 11:

Class : Class 5
orion

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6

Ans 2:

Class : Class 5
(b) Planet Venus is the hottest planet in our solar system

Ans 3:

Class : Class 1

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5

Ans 2:

Class : Class 5

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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 6

Ans 2:

Class : Class 5
how?

Ans 3:

Class : Class 5
how???

Ans 4:

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

Ans 5:

Class : Class 5
Can somebody explain why it is mechanical force ????

Ans 6:

Class : Class 5

Ans 7:

Class : Class 5
It is mechanical

Ans 8:

Class : Class 5
Mechanical force is the only correct answer .

Ans 9:

Class : Class 4
answer D

Ans 10:

Class : Class 6
mechanical

Ans 11:

Class : Class 5
Mechanical Force

Ans 12:

Class : Class 7

Ans 13:

Class : Class 7
how is it mechanical?

Ans 14:

Class : Class 6
how is it mechanical force?

Ans 15:

Class : Class 6
mechanical

Ans 16:

Class : Class 5

Ans 17:

Class : Class 6
mechanical

Ans 18:

Class : Class 5

Ans 19: (Master Answer)

Class : Class 1
Mechanical Force.

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 5

The given graph shows the changes in the population of an insect found on a Jackfruit tree after four different sprayings of the same insecticide.

What conclusion can you draw from the graph?

A The insecticide had no effect on the insects at all.
B The insect population had become resistant to the insecticide.
C The insect population increased as the wrong type of insecticide was used.
D The insecticide helped to reduce the number of insects permanently.


Ans 1:

Class : Class 5
IF B IS ANSWER THAN GRAPH SHOULD BE ALMOST UNIFORM.. THE GROWTH IS INCREASING AFTER 3RD-4TH SPRAYING

Ans 2:

Class : Class 5

Ans 3:

Class : Class 5
The pesticide is partially effective because there is a drop in population after each spraying. Hence, B CANNOT BE THE CORRECT ANSWER.

Ans 4:

Class : Class 4
b

Ans 5:

Class : Class 5
Wrong answer given by SOF !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 6:

Class : Class 5

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