National Science Olympiad Forum By SOF Olympiad Trainer - Page 368

User Forum

Subject :NSO    Class : Class 4

Post Your Answer

Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
The answer is option A

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
Answer is B because the formation of dew takes place through condensation.In this image, 3 refers to condensation.

Ans 2:

Class : Class 8
Answer is B because the formation of dew takes place through condensation.In this image, 3 refers to condensation.

Ans 3:

Class : Class 7
option b- 3

Ans 4:

Class : Class 7

Ans 5:

Class : Class 10
answer is B

Ans 6:

Class : Class 10

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 6

Post Your Answer

Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
C

Ans 2:

Class : Class 6
C option or c alphabet in technology ?

Ans 3:

Class : Class 5
c

Post Your Answer

Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
stupid

Post Your Answer

Subject :NSO    Class : Class 7

Read the given statements and select the correct option.
Statement 1: Many cut fruits, when kept in open turn brown.
Statement 2: Browning of fruits is due to a chemical reaction.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true and statement 2 is false.
D Both statements 1 and 2 are false.


Ans 1:

Class : Class 7
Option C is correct

Ans 2:

Class : Class 8
Answer is A

Ans 3:

Class : Class 7
option a is the correct answer

Post Your Answer

Subject :NSO    Class : Class 5

A ship is made of iron but still it floats in water. This is because of its shape. A ship is hollow in the middle. When it is in water, the entire volume of the ship, including the hollow portion displaces water to make space for itself. The volume of water displaced is much more than the volume of iron in the ship. Therefore, the ship floats in water.
Which of these rules can be deduced from the above given passage?

A If the upthrust is more than the weight, the body sinks in water.
B If the weight is more than the upthrust, the body floats in water.
C If the upthrust is less than the weight, the body floats in water.
D If the weight is more than the upthrust, the body sinks in water.


Ans 1:

Class : Class 5
What is the meaning of upthrust and Archimedes' principle

Ans 2:

Class : Class 8
Archimedes principle

Ans 3:

Class : Class 7

Ans 4:

Class : Class 3
Refer Archimedes principle.

Ans 5:

Class : Class 9
that's true this is based on Archimedes principle:Archimedes' principle states that the upward buoyant force that is exerted on a body immersed in a fluid, whether fully or partially submerged, is equal to the weight of the fluid that the body displaces. Archimedes' principle is a law of physics fundamental to fluid mechanics

Ans 6:

Class : Class 3
Refer Archimedes principle.

Post Your Answer

Subject :NSO    Class : Class 5

The heart is made up of muscle tissue. However, the tissue in the heart is different from the tissue in the leg. Infer the reason for the difference.

A The heart must beat all the time, so its tissue should be able to contract and relax continuously without getting tired.
B The leg is much larger than the heart, so the tissue in the leg muscle needs to contain larger cells.
C A person can voluntarily control contraction of heart muscles but not leg muscles.
D The heart muscle is surrounded by blood vessels, so the blood makes it look different from the leg muscle.


Ans 1:

Class : Class 5
OF COURSE ITS A

Ans 2:

Class : Class 7
Answer is A because the heart has cardiac muscles that comes in involuntary muscles work on their own and they continue to beat without stopping . Unlike involuntary muscles like muscles in legs , arms etc. work on signals given by brain

Post Your Answer