National Science Olympiad Forum By SOF Olympiad Trainer - Page 338

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 10

Ans 2:

Class : Class 9
I think density of paint is less than density of water (0.9 : 1.0 g/cm3 ratio )

Ans 3:

Class : Class 9
Oh actually it does sorry for asking wrong doubt

Ans 4:

Class : Class 9

Ans 5:

Class : Class 9
Does paint float on water? Actually it sinks right?

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 5

Three friends Mayank, Siddharth and Satish share a room. For last few months, Mayank and Siddharth are suffering from different diseases. Mayank has anaemia while Siddharth has diabetes. Now, from few days Satish is also feeling feverish. What could be the reason for this?

ASatish is ill as he has contracted the disease from Mayank.
BSatish is ill as he has contracted the disease from Siddharth.
CSatish is ill due to some other cause.
DEither A or B


d is the ans

Ans 1:

Class : Class 7
oh this is very very very very very easy! correct option is c

Ans 2:

Class : Class 7
aiaiyooo !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
Boiling point is 100 Degree Celsius C and D are eliminated and if he heats it for 15 min level should be less than 100 ml so A is eliminated so answer is B Don't you know boiling point and freezing point? Boiling point 100 degree celsius Freezing point 0 degree celsius so easy search on google

Ans 2:

Class : Class 5

Ans 3:

Class : Class 7
Yes Ashmi ,you are right.One should know the boiling point and freezing point if that person has qualified for level 2.This is so easy-peasy.You can even search on the Google.You will see that me and Ashmi are correct.It is not that you know or not, it is that you should know.And even if you did know, then it is about applying your knowledge at the right place.Also you should know that when we boil water, the water becomes lesser.If you knew both the things then you must have thought that 'B' and 'D' are the same.It happens with me too.I also think the answer should be option 'B'.

Ans 4:

Class : Class 5

Ans 5:

Class : Class 9
Ashmi and Mohhika are are right . If the person has qualified for level 2 then he / she should know the boiling and freezing point of water . If you don't know the boiling and freezing point of water you can also search it in Google and get some more information about this topic . Then you can clearly see that Me , Mohhnika and Ashmi are correct . If you say that A and B are same , then you are wrong because when water boils some of that water evaporates .

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Subject :NSO    Class : Class 3

Match the columns and select the correct option.

Column I Column II
a. Run on petrol 1. Bullock-cart
b. Run by electricity 2. Tonga
c. Driven by animals 3. Scooter
d. Run by man power 4. Rickshaw
  5. Metro rail
  6. Boat
  7. Motorcycle
  8. Bicycle


A a - 6, 7; b - 4, 8; c - 1, 3; d – 2, 5
B a - 3, 7; b - 5, 8; c - 2, 4; d – 1, 6
C a - 5, 7; b - 3, 6; c - 1, 2; d – 4, 8
D a - 3, 7; b - 5; c - 1, 2; d - 4, 6, 8


It is D only.

Ans 1:

Class : Class 3
answer should be c

Ans 2:

Class : Class 4
ans 4 :

Ans 3:

Class : Class 3

Ans 4:

Class : Class 8
It is D only.

Ans 5:

Class : Class 3
Yay answer is D

Ans 6:

Class : Class 6

Ans 7:

Class : Class 3
I am smart

Ans 8:

Class : Class 8
answer is (D)

Ans 9:

Class : Class 1
d d d dundun daaaaaaaaaaaaaaaa

Ans 10:

Class : Class 6
ITS D BECAUSE OF IN B ITS 2 NOT CORECT OOPS THAT WAS CLOSE

Ans 11:

Class : Class 4
Advait don't boast about yourself

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6

Ans 2:

Class : Class 8
C

Ans 3:

Class : Class 5
I don't have explanation but answer is C

Ans 4:

Class : Class 6
c

Ans 5:

Class : Class 9
Admin , all know the answer . But can give the explanation , you always write the answer only

Ans 6: (Master Answer)

Class : Class 1

C


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