National Science Olympiad Forum By SOF Olympiad Trainer - Page 407

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 7
Actually the image shown of knee is resembling to shoulder bones that's why its so confusing

Ans 2:

Class : Class 4
Very confusing.

Ans 3:

Class : Class 7
It's incorrect

Ans 4:

Class : Class 6

Ans 5:

Class : Class 8
When u know all the answers then what is the need to ask us??

Ans 6:

Class : Class 7
P shows the knee joint. The knee joint is a hinge joint, which allows movement along one axis only, to flex or to extend.Q shows a joint where our neck joins the head. It is a pivotal joint. It allows us to bend our head forward and backward and turn the head to our right or left.Now, let’s check the given options and find the incorrect one regarding these two joints:A. Joint P allows movement in one direction only. ----- Correct. Joint P is a hinge joint, which allows movement along one axis only, to flex or to extend.B. Joint Q allows movement in many planes. ----- Correct. Joint Q allows us to bend our head forward and backward and turn the head to our right or left.C. Knee bones have two P joints. ----- Incorrect. Knee bones have just one hinge joint.D. Joint Q acts like a pivot and allows the circular motion of the part around it. ----- Correct. We can move our head around in circular motion at the neck joint.Hence, Option C is the right answer.

Ans 7:

Class : Class 7
don't protest

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 3
NO !!!!!! THE ANS IS C!!!!

Ans 2:

Class : Class 8
No, it's d

Ans 3:

Class : Class 7
it!!!!!!!!!!! is!!!!!!!!!! ddddddddddddddddddddddd!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 4:

Class : Class 7
From the image, we can say that the image is formed by a round opaque object. Now, let’s check the following objects and find the one which will not form the above shadow:A. An egg ----- An egg is oval in shape, but if the source of light is placed at either of the ends, the shadow formed would be round.B. A vase ----- A vase can have any size and shape, but usually a regular vase has rounded edges. So, if source of light is placed at either of the ends, the shadow formed would be round.C. A cone ----- A cone has a pointed end, and a flat rounded end. So, if a source of light is placed at either of the ends, the shadow formed would be round.D. A metal ring ----- A metal ring is round, but hollow in between, so light would pass through the central part. So, the shadow formed by the ring will be a round hollow.Hence, the right answer is Option D.

Ans 5:

Class : Class 6
The answer should be D as all the options except D have a circular point.metal rings also have circle shape for fitting of fingers but they are hollow and let Light pass through it and as we know Light only passes through Opaque objects.

Ans 6:

Class : Class 6
it should be c. how can it be d as it is hollow at the center?

Ans 7:

Class : Class 6
It will be D !!!!!!!!!!

Ans 8:

Class : Class 6
the answer according to the question is wrong

Ans 9: (Master Answer)

Class : Class 1

Ans 10:

Class : Class 7

Ans 11:

Class : Class 6
Ans from the question is wrong. the hollow part will allow light to pass and thus the given shadow will not be formed

Ans 12:

Class : Class 6
Logically it should be C

Ans 13:

Class : Class 7
wow

Ans 14:

Class : Class 10
The answer is D.

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
D

Ans 2:

Class : Class 8
D

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 1
the answer is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
Seed drill is a tool used for sowing seeds in agriculture. It has a funnel shaped part where seeds are put in. These seeds are buried deep in the soil through hollow pipes.So b is the answer

Ans 2:

Class : Class 7
B is the answer

Ans 3:

Class : Class 7

Ans 4:

Class : Class 6
Think the the option should be (b)

Ans 5:

Class : Class 8

Ans 6:

Class : Class 9
C is the correct option as it is saying what is used for 'agriculture'

Ans 7:

Class : Class 6
shouldn;t the correct ans be B?

Ans 8:

Class : Class 5
It should be B

Ans 9:

Class : Class 8

Ans 10:

Class : Class 7
B is the answer to this question but it is showing C as correct option

Ans 11:

Class : Class 5
Both fern and mushroom have spores.Both A and B can be correct

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
Correct answer is D, As distillation process is used to separate immiscible liquids as both have different boiling points.

Ans 2:

Class : Class 7
Why is the distillation method wrong?? It should be correct!! The answer should be D!!

Ans 3:

Class : Class 6
Wrong answer

Ans 4:

Class : Class 1
the answer is C!!!!!!!!!!!!!!!!

Ans 5:

Class : Class 7
Distillation can also be usedthe ans C is correct

Ans 6:

Class : Class 6
WHY DISTILLATION SEPERATION PART WRONG?

Ans 7:

Class : Class 7
Distillation can also be used. It is also correctThe answer is incorrect

Ans 8:

Class : Class 10

Ans 9:

Class : Class 10

Ans 10:

Class : Class 10
WHY DISTILLATION METHOD FOR SEPARATION OF TWO IMMISCIBLE LIQUID IS WRONG?

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 1
diamond is a non conducter

Ans 2:

Class : Class 6
answer is b

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
A

Ans 2:

Class : Class 3
A

Ans 3:

Class : Class 1

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4

Ans 2:

Class : Class 7
The answer is D. because the the substance in which solute is dissolved is called solvent. and the mixture formed from solvent and solute is called solution.

Ans 3:

Class : Class 4
Solute Solvent =Solution

Ans 4:

Class : Class 4
yep it should be C

Ans 5:

Class : Class 4

Ans 6:

Class : Class 4
The answer is wrong.It should be option C

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
B

Ans 2:

Class : Class 3
The correct answer is B

Ans 3:

Class : Class 3
The correct answer is B

Ans 4:

Class : Class 3
The correct answer is B

Ans 5:

Class : Class 3
The correct answer is B

Ans 6:

Class : Class 3
B

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