National Science Olympiad Forum By SOF Olympiad Trainer - Page 458
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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:

Sarthak Shah from Gitanjali Begumpet, Hyderabad
Class : Class 6

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:

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??

Ans 6:

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 7:

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

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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:

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

Ans 3:

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 4:

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 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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 9:

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 10: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 11:

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

Ans 12:

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

Ans 13:

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

Ans 14:

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

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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:

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

Ans 2:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram
Class : Class 7

Ans 3:

V N from BHA, MAHARASHTRA
Class : Class 8

Ans 4:

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

Ans 5:

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

Ans 6:

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

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

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 11:

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

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

Ans 1:

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

Ans 2:

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

Ans 3:

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 4:

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 5:

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

Ans 6:

Gunjan Rudraruhi Chauthiya from New Beersheba Public School, Pithoragarh
Class : Class 8
Distillation can also be used. It is also correctThe answer is incorrect

Ans 7:

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

Ans 8:

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

Ans 9:

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

Ans 10:

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

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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:

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

Ans 2:

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

Ans 3:

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 4:

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

Ans 5:

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

Ans 6:

AVANTIKA V from Amrita Vidyalayam Puducherry , Puducherry
Class : Class 4
Solute Solvent =Solution

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

Ans 1:

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

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

Ans 6:

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

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