National Science Olympiad Forum By SOF Olympiad Trainer - Page 619

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 9
I agree with you Zayed

Ans 2:

Class : Class 5
THERE'S A WEIRD PATTERN IN THERE... in figure 1 and two they skip a figure, in figure 3 and 4 they skip two figures and so on so forth.

Ans 3:

Class : Class 6

Ans 4:

Class : Class 8
oh yeah

Ans 5:

Class : Class 4
In the picture there is a pattern . Between problem figure 1&2,it moves 1 step ahead.Between problem figure 2&3, it moves 2 steps ahead.Between problem figure 3&4,it moves 3 steps ahead.Between problem figure 4&5,it moves 4 steps ahead.So in the next problem figure 5&6,it will move 5 steps ahead .So the right option is-(A). It is so easy!!!!!!!!!!!!!!!!! Put your brains!!!!!

Ans 6:

Class : Class 2

Ans 7:

Class : Class 6
Who do you think you are?

Ans 8:

Class : Class 7
A Add 45 degrees in subsequent figures. Add 225 deg in the fourth fig to reach at A

Ans 9:

Class : Class 6

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
THE CORRECT ANSWER IS C OPTION

Ans 2:

Class : Class 3

Ans 3:

Class : Class 4

Ans 4:

Class : Class 3

Ans 5: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 6:

Class : Class 6
C

Ans 7:

Class : Class 7
THE CORRECT ANSWER IS C

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8

Ans 2:

Class : Class 6
Ans is A because lungs send oxygen-rich blood to the heart and this oxygen-rich blood is sended to all body parts and the carbondioxide-rich blood goes back to the heart from the body this carbondioxide-rich blood is sended to the lungs.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
4 th blank will be filled with fertilisation correct ans is b Pollen grains are deposited on stigma and not style

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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 3

Ans 1:

Class : Class 7

Ans 2:

Class : Class 5

Ans 3:

Class : Class 7
kunal is wrong

Ans 4:

Class : Class 3
ahh... very easy answer is d

Ans 5:

Class : Class 9
C

Ans 6:

Class : Class 3

Ans 7:

Class : Class 1
D HE GAVE EXPLANATION

Ans 8:

Class : Class 3

Ans 9:

Class : Class 3
NA

Ans 10:

Class : Class 5
abcd are correct

Ans 11:

Class : Class 3
D

Ans 12:

Class : Class 3
c is the correct answer

Ans 13:

Class : Class 7

Ans 14:

Class : Class 3
HE DID NOT EXPLAIN.

Ans 15:

Class : Class 9
c is the ans

Ans 16:

Class : Class 3
It should be D

Ans 17:

Class : Class 4
c maybe????

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
D is correct

Ans 2:

Class : Class 3
all of these

Ans 3:

Class : Class 1
d and Gaurika actually chocolate contains fats

Ans 4:

Class : Class 9
D

Ans 5:

Class : Class 9
A

Ans 6:

Class : Class 8
all of these option(D)

Ans 7:

Class : Class 5

Ans 8:

Class : Class 6
All of these

Ans 9:

Class : Class 7
A is not correct D is correct

Ans 10:

Class : Class 2
Fruits (2) contain minerals and vitamins and are protective food. They help in recovering from illness. Overeating of fried food (1) leads to obesity as it contains fat that gets stored in the body. Chocolates (3) contain a lot of carbohydrates which give us energy when hungry.

Ans 11:

Class : Class 5
Everyone thinks that a option is correct but it is wrong.The correct answer is d part.Everyone will think that chocolate is junk food.How can it give us the energy but chocolate contains fat.That's why when when we are hungry it gives us a lot of energy

Ans 12:

Class : Class 6
D

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
D, amount of water matters the most out of all.

Ans 2:

Class : Class 8
shape of dish also should be included. Amount of water poured doesnt matter as long as you are collecting equal volume in all dishes. Hence similar dishes is important.

Ans 3:

Class : Class 10

Ans 4:

Class : Class 8

Ans 5:

Class : Class 10
The amount of water also matters right

Ans 6:

Class : Class 8

Ans 7:

Class : Class 7
i think amount of water also nedd

Ans 8:

Class : Class 9
D

Ans 9:

Class : Class 7
c should be the correct answer

Ans 10:

Class : Class 7

Ans 11:

Class : Class 7
I feel that it is D

Ans 12:

Class : Class 5

Ans 13:

Class : Class 4
Water is also correct

Ans 14:

Class : Class 9
d

Ans 15:

Class : Class 8
D

Ans 16:

Class : Class 8
Definitely D

Ans 17:

Class : Class 8
d is correct answer

Ans 18:

Class : Class 9
I do agree it's D

Ans 19:

Class : Class 9

Ans 20:

Class : Class 10

Ans 21:

Class : Class 6

Ans 22:

Class : Class 9
I think D is the correct answer

Ans 23:

Class : Class 7
All the given factors are required for a fair test ; So option D would be the correct answer

Ans 24:

Class : Class 8
Option D is the correct answer

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
A is the correct answer

Ans 2:

Class : Class 6

Ans 3:

Class : Class 6
Yes ,Because chemical means change in the properties but there is no change .The answer is A

Ans 4:

Class : Class 6
C because we can get clay back from a wet pot by smashing it,but once it heats up, it dries the clay and makes it stone hard.

Ans 5:

Class : Class 6
IF WE SHARP A PENCIL IT IS A PHYSICAL IRREVERSIBLE CHANGE .SO,IF WE HEAT A POT IS PHYSICAL IRREVERSIBLE CHANGE. BUT IT COULD HAPPEN THAT THE COMPOSITION OF CLAY MIGHT CHANE BECAUSE OF HEATING AS THE MOLECULES STICK TO EACH OTHER

Ans 6:

Class : Class 6

Ans 7:

Class : Class 7
A is correct because it just turns hard but it is still clay only.And also chemical change doesn't mean that it is irreversible,Chemical change means that the identity of the substance we started with is lost.Here the identity is not lost.So A is correct.

Ans 8:

Class : Class 6
It really should be A

Ans 9:

Class : Class 6
It should be A

Ans 10:

Class : Class 7
c is the correct answer

Ans 11:

Class : Class 9
C,because- it is a chemical change. after baking we can break it into smaller particles but it won't form the same clay, with same properties again

Ans 12:

Class : Class 5

Ans 13:

Class : Class 6
on heating, the clay pot doesn't turn into stone,right?it doesn't change composition once heated , it is still clay ! answer is "A"

Ans 14:

Class : Class 7
a is the correct answer because chemical composition dose not change

Ans 15:

Class : Class 8
answer is a

Ans 16:

Class : Class 6
The answer is A.

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
Option D is correct. I dont know why. Please explain

Ans 2:

Class : Class 7
answer is option c

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8

Ans 5:

Class : Class 9
ans is option C

Ans 6:

Class : Class 9
can someone explain why?

Ans 7:

Class : Class 8
ans is option C

Ans 8:

Class : Class 7
Please explain it to me.

Ans 9:

Class : Class 7

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