National Science Olympiad Forum By SOF Olympiad Trainer - Page 619

User Forum

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
C

Ans 2:

Class : Class 4

Ans 3:

Class : Class 3

Ans 4:

Class : Class 5
THE CORRECT ANSWER IS C OPTION

Ans 5:

Class : Class 7
THE CORRECT ANSWER IS C

Ans 6: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 7:

Class : Class 3

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

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.

Ans 2:

Class : Class 8

Post Your Answer

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

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3

Ans 2:

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

Ans 3:

Class : Class 3
D

Ans 4:

Class : Class 3
c is the correct answer

Ans 5:

Class : Class 3
It should be D

Ans 6:

Class : Class 3
NA

Ans 7:

Class : Class 7

Ans 8:

Class : Class 3
HE DID NOT EXPLAIN.

Ans 9:

Class : Class 1
D HE GAVE EXPLANATION

Ans 10:

Class : Class 9
c is the ans

Ans 11:

Class : Class 4
c maybe????

Ans 12:

Class : Class 3

Ans 13:

Class : Class 5
abcd are correct

Ans 14:

Class : Class 5

Ans 15:

Class : Class 7

Ans 16:

Class : Class 7
kunal is wrong

Ans 17:

Class : Class 9
C

Post Your Answer

Subject :NSO    Class : Class 3

Ans 1:

Class : Class 6
D

Ans 2:

Class : Class 8
all of these option(D)

Ans 3:

Class : Class 6
All of these

Ans 4:

Class : Class 9
D

Ans 5:

Class : Class 3
all of these

Ans 6:

Class : Class 5

Ans 7:

Class : Class 1
d and Gaurika actually chocolate contains fats

Ans 8:

Class : Class 9
A

Ans 9:

Class : Class 7
A is not correct D is correct

Ans 10:

Class : Class 7
D is correct

Ans 11:

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 12:

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

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
d

Ans 2:

Class : Class 7
I feel that it is D

Ans 3:

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

Ans 4:

Class : Class 9

Ans 5:

Class : Class 9
I think D is the correct answer

Ans 6:

Class : Class 10

Ans 7:

Class : Class 8

Ans 8:

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 9:

Class : Class 8
D

Ans 10:

Class : Class 10

Ans 11:

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

Ans 12:

Class : Class 8
d is correct answer

Ans 13:

Class : Class 6

Ans 14:

Class : Class 8
Definitely D

Ans 15:

Class : Class 4
Water is also correct

Ans 16:

Class : Class 10
The amount of water also matters right

Ans 17:

Class : Class 7
c should be the correct answer

Ans 18:

Class : Class 9
I do agree it's D

Ans 19:

Class : Class 5

Ans 20:

Class : Class 7
i think amount of water also nedd

Ans 21:

Class : Class 7

Ans 22:

Class : Class 8

Ans 23:

Class : Class 8
Option D is the correct answer

Ans 24:

Class : Class 9
D

Post Your Answer

Subject :NSO    Class : Class 6

Ans 1:

Class : Class 5

Ans 2:

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 3:

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 4:

Class : Class 6
It should be A

Ans 5:

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

Ans 6:

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 7:

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 8:

Class : Class 6

Ans 9:

Class : Class 6
It really should be A

Ans 10:

Class : Class 6
The answer is A.

Ans 11:

Class : Class 7
c is the correct answer

Ans 12:

Class : Class 8
answer is a

Ans 13:

Class : Class 6
A is the correct answer

Ans 14:

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

Ans 15:

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 16:

Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
answer is option c

Ans 2:

Class : Class 8
ans is option C

Ans 3:

Class : Class 7
Please explain it to me.

Ans 4:

Class : Class 8

Ans 5:

Class : Class 9
can someone explain why?

Ans 6:

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

Ans 7:

Class : Class 9
ans is option C

Ans 8:

Class : Class 7

Ans 9:

Class : Class 7

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
jk kj;

Ans 2:

Class : Class 5
Not kerwa its kewra. It is an extract that is distilled from the flower of the Pandanus plant. Kewra water is very similar to rosewater. It is used to flavour South Asian cuisine.

Post Your Answer