National Science Olympiad Forum By SOF Olympiad Trainer - Page 472
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Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Raghav Aggarwal from CAMBRIDGE SCHOOL INDIRAPURAM, INDIRAPURAM
Class : Class 7
don't protest

Ans 2:

Sanvi from K R Mangalam, Ghaziabad
Class : Class 8
Actually the image shown of knee is resembling to shoulder bones that's why its so confusing

Ans 3:

Pratheek from Null, Null
Class : Class 4
Very confusing.

Ans 4:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
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 5:

Rithvik Chandra from Greenwood High School, Bangalore
Class : Class 6
even if it looks like shoulder joint, it is incorrect, because shoulder joint has only one hinge joint not two, same for knee. and they said select the INCORRECT option, hence it is option C. And if you dont beleive me ask your science/biology teacher, they will say the same thing.

Ans 6:

RICHA BORAH from K V ANNA NAGAR, CHENNAI
Class : Class 7
It's incorrect

Ans 7:

Sarthak Shah from Gitanjali Begumpet, Hyderabad
Class : Class 6

Ans 8:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
When u know all the answers then what is the need to ask us??

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Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore
Class : Class 8
it!!!!!!!!!!! is!!!!!!!!!! ddddddddddddddddddddddd!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Ans 2:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
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 3:

Aarav Mishra from D R Amin Memorial school, Baroda
Class : Class 6
Logically it should be C

Ans 4:

Raghav Aggarwal from CAMBRIDGE SCHOOL INDIRAPURAM, INDIRAPURAM
Class : Class 7
wow

Ans 5:

Arsh from Lahs, Gwalior
Class : Class 3
NO !!!!!! THE ANS IS C!!!!

Ans 6:

student from school, city
Class : Class 10
The answer is D.

Ans 7:

Agrimn from Gateway International School, Sonipat
Class : Class 6
the answer according to the question is wrong

Ans 8:

Subhang Deep Sahu from Narayana CO Kadugodi Bangalore, Bangalore
Class : Class 8

Ans 9:

Shourya from Shanthiniketan public school, Vivekanandanagar ramanagar
Class : Class 6
it should be c. how can it be d as it is hollow at the center?

Ans 10:

Indrobrata Sarkar from Techno India Group Public School, Chinsurah
Class : Class 6
It will be D !!!!!!!!!!

Ans 11:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
No, it's d

Ans 12:

Jashith from MVN, Faridabad
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 13:

piyush Choudhary from Maxfort School Dwarka , New Delhi
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 14: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

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Shivam Gupta from Army Public School, Noida
Subject :NSO    Class : Class 5

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Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

Admin fly from Ddssxxx, Ax
Class : Class 1
the answer is B!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

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Pranav Shagrithaya from NPS Yelahanka, Bengaluru
Subject :NSO    Class : Class 5

Ans 1:

Aaditva from Vasant Valley School, New Delhi
Class : Class 8
B is the answer

Ans 2:

Pratham Dave from GNS, Bangalore
Class : Class 7
B is the answer to this question but it is showing C as correct option

Ans 3:

ARUNAV from DPS VINDHYANAGAR, VINDHYANAGAR
Class : Class 10
C is the correct option as it is saying what is used for 'agriculture'

Ans 4:

krishneil from Elpro international school, Pune
Class : Class 6
Think the the option should be (b)

Ans 5:

Avyay mahajan from Nps international, Singapore
Class : Class 5
It should be B

Ans 6:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 7:

Krithi Manasvini from Alwin Memorial Public School, Chennai
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 8:

V N from BHA, MAHARASHTRA
Class : Class 8

Ans 9:

Prisha Shah from Euroschool Airoli, Mumbai
Class : Class 6
shouldn;t the correct ans be B?

Ans 10:

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

Ans 11:

Archishman Pal from Sri Krishna Mission School, Agartala
Class : Class 9

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Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10

Ans 2:

Gunjan Rudraruhi Chauthiya from New Beersheba Public School, Pithoragarh
Class : Class 9
Distillation can also be used. It is also correctThe answer is incorrect

Ans 3:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10

Ans 4:

Lakshya Rajurkar from Euroschool, PUNE
Class : Class 6
WHY DISTILLATION SEPERATION PART WRONG?

Ans 5:

Siddhanth Subramanian from Global Indian International School , Singapore
Class : Class 7
Distillation can also be usedthe ans C is correct

Ans 6:

Aarushi Upadhyayula from The Cambridge International School, Bengaluru
Class : Class 7
Why is the distillation method wrong?? It should be correct!! The answer should be D!!

Ans 7:

Samarth from Central school , Chennai
Class : Class 7
Wrong answer

Ans 8:

PARNIKA SINGH from GYAN GANGA EDUCATION ACADEMY, RAIPUR
Class : Class 10
WHY DISTILLATION METHOD FOR SEPARATION OF TWO IMMISCIBLE LIQUID IS WRONG?

Ans 9:

Devaj Parekh from Choithram School North Campus, Indore
Class : Class 7
Correct answer is D, As distillation process is used to separate immiscible liquids as both have different boiling points.

Ans 10:

Admin fly from Ddssxxx, Ax
Class : Class 1
the answer is C!!!!!!!!!!!!!!!!

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Admin fly from Ddssxxx, Ax
Subject :NSO    Class : Class 6

Ans 1:

m abi kareem from Dr KRBM School AES Pushpavihar, New Delhi
Class : Class 6
answer is b

Ans 2:

Admin fly from Ddssxxx, Ax
Class : Class 1
diamond is a non conducter

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vineet8026@gmail.com from dps, Doha
Subject :NSO    Class : Class 3

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rajanya mandal from j h ambani, surat
Subject :NSO    Class : Class 4

Ans 1:

Atrijo Ghosh from Don Bosco Liluah, Howrah
Class : Class 4
The answer is wrong.It should be option C

Ans 2:

AVANTIKA V from St.joseph of Cluny school , Puducherry
Class : Class 6
Solute Solvent =Solution

Ans 3:

Kashvi Chirag Radhakrishnan from Vidya Valley,Susroad, Pune, Pune
Class : Class 4
yep it should be C

Ans 4:

UMANG from spring dale college, Lucknow
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 5:

Kashvi Chirag Radhakrishnan from Vidya Valley,Susroad, Pune, Pune
Class : Class 4

Ans 6:

Jeet Anandani from Pawar public school, Mumbai
Class : Class 4

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vineet8026@gmail.com from dps, Doha
Subject :NSO    Class : Class 3

Ans 1:

Ajay Singh from Kendriya Vidyalaya Khanapara, Guwahati
Class : Class 3
The correct answer is B

Ans 2:

Ajay Singh from Kendriya Vidyalaya Khanapara, Guwahati
Class : Class 3
The correct answer is B

Ans 3:

Ajay Singh from Kendriya Vidyalaya Khanapara, Guwahati
Class : Class 3
The correct answer is B

Ans 4:

Ajay Singh from Kendriya Vidyalaya Khanapara, Guwahati
Class : Class 3
The correct answer is B

Ans 5:

ANSHUL GAJJAR from PODAR INTERNATIONAL SCHOOL, AHMEDABAD
Class : Class 3
B

Ans 6:

FAIZA AMIN from SAINT XAINS INTERNATIONAL SCHOOL ANANTNAG, ANANTNAG
Class : Class 3
B

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