National Science Olympiad Forum By SOF Olympiad Trainer - Page 706
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Praket Tejas from Delhi Public School Indira Nagar Lucknow, Lucknow
Subject :NSO    Class : Class 4

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Abhay rajvanshi from Delhi Public School, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

Rimi from TLISK, pune
Class : Class 9
Aryaveer and shourya shinde, maybe it be a technical error. But you are right

Ans 2:

Nilarka Pahari from Young Horizons School, Kolkata
Class : Class 4

Ans 3:

Vedant from DON BOSCO, CHENNAI
Class : Class 2
Answer is d

Ans 4:

Shaurya Shinde from Goldcrest High Vashi, Navi Mumbai
Class : Class 8
1)When option 'a' choosed SOF shows option 'b' as correct answer and vica-versa. 2) In the book the correct answer is 'a' but over here it is showing as 'b'.

Ans 5:

Jibran Noorshah from Christ Academy, Bangalore
Class : Class 5
Answer is "A". Since there are technical glitches it shows it as "B"

Ans 6:

Biju Pappachan from Rkc , Raipur
Class : Class 1

Ans 7:

Jibran Noorshah from Christ Academy, Bangalore
Class : Class 5

Ans 8:

Aaditya Nair Sujith from Mayoor Private School, Abudhabi, AbuDhabi
Class : Class 5
option a, because The graph shows that place X has temperatures in the range of 35 to 50°C thus it must be a hot and dry place. Animals living here adapt themselves to reduce sweating in order to prevent water loss from body.

Ans 9:

Biju Pappachan from Rkc , Raipur
Class : Class 1

Ans 10:

NeilRaphaelVeigas from Rockwell International School, Hyderabad
Class : Class 6

Ans 11:

Saanvi Prasad from DPS Noida, Noida
Class : Class 5
ANSWER IS A I WROTE IT WRONG IN FORUM IT SHOWS A BRUH ;-;

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Pushti Shah from mount carmel, ahmedabad
Subject :NSO    Class : Class 6

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Gauri Singh from St Johns School Marhauli, Varanasi
Subject :NSO    Class : Class 5

Ans 1:

Shivangi from St. Michael's High School, Patna
Class : Class 5
Small Intestine

Ans 2:

SelvaSundari Sundara Murugan from kendriya vidyalaya, chennai
Class : Class 5
Stomach will grind the food particles into smaller one and in small intestine only finally digestion will takes place and the nutrients will absorbed by blood.

Ans 3:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8

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Varsha from Harvest, Bangalore
Subject :NSO    Class : Class 5

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
It is plant P because if we compare 5 1/2cm with other measures, it will be the largest.

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Adithi Keshava from National Center For Excellence , Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Advaita sinha from NPSI, Singapore
Class : Class 5

Ans 2:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 6
Option D

Ans 3:

Emma Miriam George from Sophia High School, Bangalore
Class : Class 3

Ans 4:

Kriti Bhonsale from Delhi Public School, Bengaluru
Class : Class 5

Ans 5:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 8

Ans 6:

Aarvi Gosai from The New Tulip International School, Ahemdabad
Class : Class 4
GMVIYHJ,OKHJFYJHIKOHARRYPOTTERRJVHMNHJGJJJGJYTGIJHIOKHHUJ TRY TO FIND A NOUN IN THIS JUMBLE OF WORDS

Ans 7:

Ankush Dey from Sri Chaitanya Techno School Newtown, Kolkata
Class : Class 6
My Answer is DPollination is when pollen of a plant travels from one plant to another by something (i.e.Insect and water). Pollens are used to grow seeds in the plant

Ans 8:

Aditya N K from Bharathiya Vidya Bhavan, Calicut
Class : Class 4
what is pollination

Ans 9:

Jasnoor from DAV public school, Ludhiana
Class : Class 4
A

Ans 10:

Harsh Sobti from the samhita academy, BLR
Class : Class 5
I go with Jasnoor's option. A

Ans 11:

Sashrik S Bhalerao from NHP school, Airoli
Class : Class 1
D.

Ans 12:

sanjana from NARAYANA E TECHNO , Chennai
Class : Class 8

Ans 13: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

Ans 14:

Yatindra G from SBOA, Chennai
Class : Class 4
Guys!! Date palm grows in deserts. they are asking about a plant in hilly ares.

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

Shravan from Harvest International School , Bangalore
Class : Class 9
@sjash the question is trying to say that E is second to the right of a, not c

Ans 2:

Gouse Jani from Aditya talent school, Kakinada
Class : Class 7
DB

Ans 3:

sjash from tagore international, New Delhi
Class : Class 9
but the ques is wrong........if a is sitting between g and c, how is c second to the right of a ???????

Ans 4: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is A.

Ans 5:

ADWIKA from DAV, FARIDABAD
Class : Class 10

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Both C and D are correct

Ans 2:

Maanasa from PSBB Siruseri, Chennai
Class : Class 8
agoogle says a

Ans 3:

RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Class : Class 7
option c is correct

Ans 4:

Rithvik from BVM Global, Chennai
Class : Class 9
c and d

Ans 5:

Manu Dagur from Rukmani Birla Modern High School, Jaipur, JAIPUR
Class : Class 10
D as it is mentioned that the particle is travelling at a constant speed

Ans 6:

Atharva Shrikhande from Euro School, Pune
Class : Class 9
both options "C" and "D" are correct in my opinion cause as the car is moving at a constant speed there is no acceleration and as the car is being ridden on a straight road direction of movement also does not change, Hence proving that both option "C" and "D" are correct. I hope my answer was helpful. A very Happy New Year to all

Ans 7:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10
not c i think

Ans 8:

Shuvangi Das from Vivekananda mission school, haldia
Class : Class 9
Both C and D I prefer. SOF pls check

Ans 9:

RAHUL S ROY from ST.XAVIERS HIGH SCHOOL,VAPI, VAPI,GUJARAT
Class : Class 7
option c is correct as acceleration means change of speed

Ans 10:

Venya Vikas from Chirec International , Hyderabad
Class : Class 7
Both option C and option D are correct as since it is moving in constant speed, it's acceleration will be zero and the direction will not change as it was not mentioned and the particle is travelling on a straight road

Ans 11:

govindkrishnan p from KENDRIYA VIDYLAYA PAYYANUR, PAYYANUR
Class : Class 7
Both 'C' and 'D' are correct

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

Anshuman D from MVM, Hyderabad
Class : Class 9
I am not able to understand it

Ans 2:

Ridhima Sahu from Bal Bharati Public School , Navi Mumbai
Class : Class 7
Answer is (a). This is observed due to this reasonThere's a line which is making an angle 55° and is a linear pair. Hence the angle of line (mirror) p is 180°. But 55° is not the angle of incidence. To get the sum of angle of incidence and reflection, we multiply 55° by 2 and get 70°. Since angle of incidence =angle of reflection, 70°÷2=35°. The angle of incident ray and the reflected ray of P and Q are same thus the sum of the angle of incidence and angle of reflection would be the same (70°). We know, angle of incidence=angle of reflection, hence 70°÷2=35°. Or A=35°

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

Ans 4:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
Here the properties of lines and angles will be applied.Then the laws of reflection

Ans 5:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
The correct is C

Ans 6:

Anshuman D from MVM, Hyderabad
Class : Class 9
I actually don't get the logic behind it

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param ahuja from m.p.s, Ajmer
Subject :NSO    Class : Class 7

Ans 1:

Sanjay Kumar from Vellammal Vidyashram, Chennai
Class : Class 5
Ans c

Ans 2:

siddarth from DPS Ecity, Bengaluru
Class : Class 8
ans= c

Ans 3:

Om Goel from Ryan International School, New Delhi
Class : Class 10
the answer should be B because cocave lens is a diverging lens which will diverge the light to all parts of the room

Ans 4:

Jai kumar Bohara from Dps, Udaipur
Class : Class 9
yes ans c

Ans 5:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
The correct answer is D.

Ans 6:

Md.ZEESHAN ali from St. Agness branch school, Kharagpur
Class : Class 4
yes according to me also the answer is c but in nso practice papers it is written as d

Ans 7:

Miheet parikh from Jamnabai narsee school, Mumbai
Class : Class 3
A

Ans 8:

Tanush Rao from Delhi Public School Vasant Kunj, Delhi
Class : Class 8

Ans 9:

NIKHIL RANJAN from Litera Valley School, PATNA
Class : Class 7
0hi hi hih h hi hi hi hii

Ans 10:

Arvin from KC INTERNATIONAL SCHOOL JAMMU, Jammu
Class : Class 7
The answer is B

Ans 11:

ALICE from Delhi Public School, UDAIPUR
Class : Class 9

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