National Science Olympiad Forum By SOF Olympiad Trainer - Page 626

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Subject :NSO    Class : Class 9

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Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Class : Class 1
The correct answer is B.

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
The correct option is C as all compasses are controlled by Earth's magnetic field.

Ans 2:

Class : Class 5

Ans 3:

Class : Class 6
Earth's magnetic field (C)

Ans 4:

Class : Class 8
I still don't understand this question after reading the solution.😬😱

Ans 5:

Class : Class 5
answer is option c

Ans 6:

Class : Class 7
C is the answer to this question

Ans 7:

Class : Class 5
C is the answerIf you open synopsis in this chapter,it is clearly written that a compass works with the help of earth's magnetic field

Ans 8:

Class : Class 8
Earth's magnetic field.

Ans 9:

Class : Class 7
C (EARTH'S MAGNETIC FIELD)

Ans 10:

Class : Class 5
sanskriti nagar is correct

Ans 11:

Class : Class 1
If u don’t understand after reading the solution tell Siri to explain u

Ans 12:

Class : Class 7
ANSWER SHOULD BE C

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
the last option is not understandable

Ans 2:

Class : Class 4
d is incomplete

Ans 3:

Class : Class 10
D IS INCOMPLETE OPTION.

Ans 4:

Class : Class 9
D is incomplete answer

Ans 5:

Class : Class 7
the last option is incomplete the complete option should be Both B and C

Ans 6:

Class : Class 7
D is an incomplete option

Ans 7:

Class : Class 7
D is an incomplete option

Ans 8:

Class : Class 3

Ans 9:

Class : Class 3
so it is both b and c now ok guys.

Ans 10:

Class : Class 9
Where is D?

Ans 11:

Class : Class 8
OPTION D SHOULD BE ''BOTH B AND C

Ans 12:

Class : Class 8
d is grammatically incorrect

Ans 13:

Class : Class 7
d is incomplete

Ans 14:

Class : Class 9
d is an incomplete answer

Ans 15:

Class : Class 10

Ans 16:

Class : Class 3
Turmeric indicator remains yellow in acidic (vinegar) and neutral solutions (common salt solution) and turns red in basic solution (soap solution and baking soda).

Ans 17:

Class : Class 8
The whole statement isn't mentioned

Ans 18:

Class : Class 7
please explain

Ans 19:

Class : Class 7
D is an incomplete option .

Ans 20:

Class : Class 10
the answer is d

Ans 21:

Class : Class 10
Yes,it is wrong. Incomplete option

Ans 22:

Class : Class 7
They have not written: Both B and C in the D option. Whereas, B is important in the D option.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
nope you are telling the opposite

Ans 2:

Class : Class 1
The correct Ans is B and I did B but SOF is telling me I did C. Impossible and I am telling the truth I swear.

Ans 3:

Class : Class 5
From Athiya Mahapatra: option)c As the Upper layer of Earth is called Crust. The liquid which flows outside a volcano is called lava and Richter Scale is used to measure intensity of earthquakes.

Ans 4:

Class : Class 10
the answer is b

Ans 5:

Class : Class 7
Totally agree with you Mannat

Ans 6:

Class : Class 7
When it's inside a volcano, it's called magma. When it's out, it's called lava.

Ans 7:

Class : Class 10
The answer is (C), but (B) can also be the answer.

Ans 8:

Class : Class 7

Ans 9:

Class : Class 10
I feel the (B) should be the correct answer, so please explain why (C) is the correct one.

Ans 10:

Class : Class 10
ans should be b

Ans 11:

Class : Class 10
Sorry, I had was to mark this one only, but instead of (C), I clicked on (B)!

Ans 12:

Class : Class 4

Ans 13:

Class : Class 6
Volcano is an opening on the surface of Earth’s crust. There are three types of volcanoes: (i) Active volcanoes are those which are currently erupting or have erupted in the last 10,000 years. (ii) The dormant volcanoes are in a state of sleep. This means that they had erupted in the past but can erupt again, however, at the moment they are asleep. (iii) Extinct volcanoes are those that have been inactive for thousands of years and are not expected to erupt again. The liquid that comes out of a volcano is called lava. Richter scale measures magnitude of earthquakes and was developed by Charles Richter in 1935.

Ans 14:

Class : Class 6
nope you are telling the opposite

Ans 15:

Class : Class 7
ok

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
First of all, fish, crocodile and snakes, all these three are egg laying animals. Secondly, all of them are cold blooded animals. And thirdly, all of them are covered with scales. And therefore, statements 1, 2 & 3 are correct. That is why option C is correct.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
YOYOYOYOOOO

Ans 2:

Class : Class 5
got a little confused here but sorted it out

Ans 3:

Class : Class 6
Ans is C because 0 minutes was 20 degrees celsius. Then, we were adding 6 after 2, 4, 6 minutes and so on. 1 is half of 2, and 1+2=3. So we should take normally 26 degrees celsius+(Half of 6) degrees celsius=26 degrees celsius+3 degrees celsius=29 degrees celsius.

Ans 4:

Class : Class 2

Ans 5:

Class : Class 8
syu

Ans 6:

Class : Class 5

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Novosti

Ans 2:

Class : Class 6
Novosti

Ans 3:

Class : Class 7

Ans 4:

Class : Class 7
Novosti

Ans 5:

Class : Class 9
Novosti

Ans 6:

Class : Class 5
Novosti

Ans 7:

Class : Class 8
urenrjrjkvnm

Ans 8:

Class : Class 5
Fishing rod changes speed of the fish

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Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Class : Class 1
The correct answer is C.

Ans 2:

Class : Class 10

Ans 3:

Class : Class 8

Ans 4:

Class : Class 8

Ans 5:

Class : Class 4
It should be a

Ans 6:

Class : Class 8
please explain

Ans 7:

Class : Class 10
shouldnt it be a

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