National Science Olympiad Forum By SOF Olympiad Trainer - Page 562

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7

Ans 2:

Class : Class 4
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Ans 3:

Class : Class 7
we realized the saree style is called Nawaree and its worn by a Maharashtrian lady. However its not NorthIndian its Western style

Ans 4:

Class : Class 4
the answer should be D because the sarre is Maharastrain so the answer should D.

Ans 5:

Class : Class 7
The correct answer is A

Ans 6:

Class : Class 9

Ans 7:

Class : Class 4
Hmm... But A and B almost makes similar sense.

Ans 8: (Master Answer)

Class : Class 1
The correct answer is A.

Ans 9:

Class : Class 9
its not the same saree .Nauvari saree is 9 meters against the 6 meters north indian saree

Ans 10:

Class : Class 4

Ans 11:

Class : Class 5

Ans 12:

Class : Class 8
This is a dress worn by Maharstrian ladies. Maharasthra is not in the north India.It is part of Central India so, the correct answer should have been D.

Ans 13:

Class : Class 5
the corret ans shold be d not a

Ans 14:

Class : Class 5
There are wrong options...The woman is wearing a Maharashtrian saree

Ans 15:

Class : Class 6
D

Ans 16:

Class : Class 8

Ans 17:

Class : Class 6
Admin is right.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
d is the ans

Ans 2:

Class : Class 6
D

Ans 3: (Master Answer)

Class : Class 1

The correct answer is D.


Ans 4:

Class : Class 5
No, Ayva and my other friends who have a doubt... Remember that whenever any liquid while heating or boiling will not make its quantity decrease or increase. For Example -I heat 200ml of water until it started evaporating completely...it will not increase or decrease as I said earlier...it will remain 200ml only. That's why the answer is D.

Ans 5:

Class : Class 7
The correct answer is D

Ans 6:

Class : Class 5
d because all the water is evaporated

Ans 7:

Class : Class 7
some vapour will condense in the tube before they reach flask q making it 350 ml. and is b

Ans 8:

Class : Class 5
b's the answer

Ans 9:

Class : Class 8
The correct answer is D

Ans 10:

Class : Class 6
Ayva is correct

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 8
A

Ans 2:

Class : Class 4
C

Ans 3:

Class : Class 3
B

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Subject :NSO    Class : Class 6

Refer to the given dichotomous key and select the incorrect statement regarding P, Q, R, S and T.

(i) (A) It is a natural fibre.- Go to (ii)
(B) It is a man-made fibre. -
(ii) (A) Fibre is obtained from plants.
- Go to (iii)
(B) Fibre is obtained from animals.
- Go to (iv)
(iii) (A) Fibre obtained from stem. -
(B) Fibre obtained from seed. -
(iv) (A) Fibre obtained by harming source organism. -
(B) Fibre obtained without harming source organism. -

A Fibre P is quick burning and shrinks away from flame giving slightly sweet chemical odour.
B Q could be obtained from Corchorus capsularis while R could be obtained from Gossypium hirsutum.
C Fibre S is obtained from an insect whereas fibre T is obtained from a mammal.
D Fabric made of S can be worn in all seasons whereas fibre Q can be used to make a raincoat.


Can't silk worn in all seasons???????????

Ans 1:

Class : Class 7
C is the answer

Ans 2:

Class : Class 7
(D) is totally false . raincoat is made from plastic only which is a man made fiber .

Ans 3:

Class : Class 6
D is false as silk cannot be worn in all seasons .

Ans 4:

Class : Class 10
Silk can't be worn in monsoon and winter, because it is not waterproof and it does not trap heat.

Ans 5:

Class : Class 8
D -

Ans 6:

Class : Class 8

Ans 7:

Class : Class 10
D SHOULD BE THE CORRECT ANSWER

Ans 8:

Class : Class 9
C

Ans 9:

Class : Class 1
D cannot be an answer because raincoat cannot be made of jute

Ans 10:

Class : Class 10
That is why Silk cannot be worn in all seasons

Ans 11:

Class : Class 10
D

Ans 12:

Class : Class 9
c should be the answer as silk is obtained from silkworm(insect) by harmingand wool,angora wool , etc are obtained without harming the mammal

Ans 13:

Class : Class 8
d

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3

Ans 2:

Class : Class 4
B

Ans 3:

Class : Class 3
I cant understand why this question is wrong .

Ans 4:

Class : Class 8
No, the question is not wrong . X is a Gibbous moon . The correct answer is B.

Ans 5:

Class : Class 6

Ans 6:

Class : Class 4
the correct answer is C. As I feel there`s a miss print in a b c and d.

Ans 7:

Class : Class 4
Nothing has changed correct answer is B

Ans 8:

Class : Class 6

Ans 9:

Class : Class 6

Ans 10:

Class : Class 3

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3

Ans 2:

Class : Class 3
I acseped my mistake

Ans 3:

Class : Class 9
It should be new moon,because full moon takes 2 weeks to change into new moon.

Ans 4:

Class : Class 3

Ans 5:

Class : Class 3
I feel it is still not new moon as there are a couple of days for it to become a new moon.

Ans 6:

Class : Class 4
I accepted my mistake.But still think there are a couple of days for it to become a new moon.

Ans 7:

Class : Class 8
The correct answer is A.

Ans 8:

Class : Class 4

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
C) x y

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Subject :NSO    Class : Class 6

Read the given passage where some of the words have been italicised.
Cotton plant is annual shrub. It grows best in cold climate. Black soil is best suited for the cultivation of cotton plant. The stems of cotton plant are called cotton bolls. The seeds with cotton fibres are picked from the cotton bolls by hand. After picking the fibres are separated from the seeds by a process called combing.
Select the correct option regarding this.

A Annual should be replaced by biennial.
B Cold should not be replaced as it is correctly mentioned.
C Black should be replaced by yellow and stems should be replaced by fruits.
D Combing should be replaced by ginning.


answer is D

Ans 1:

Class : Class 8
CORRECT ANS IS D guys

Ans 2:

Class : Class 10
ans is D

Ans 3:

Class : Class 10
Ginning is a process used to separate cotton fibres from seeds while combing is the process of disentangling fibres

Ans 4:

Class : Class 6
It's D for sure guys

Ans 5:

Class : Class 6
yes combing should be replaced because combing is the process of of straitning cotton fibers

Ans 6:

Class : Class 6
d is the answer

Ans 7:

Class : Class 6
correct ans is d

Ans 8:

Class : Class 8
d

Ans 9:

Class : Class 6
D is correct, combing should be replaced by ginning

Ans 10:

Class : Class 6
correct answer should be d

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