National Science Olympiad Forum By SOF Olympiad Trainer - Page 452
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Sparsh Bagal from Bharati Vidyapeeth School, Pune
Subject :NSO    Class : Class 4

Ans 1:

Kavin from ISG , Muscat, Muscat
Class : Class 5
clear your doubts and please report

Ans 2:

aayushi anand from AIR FORCE SCHOOL HASIMARA, HASIMARA
Class : Class 4
C

Ans 3:

Ray Bansal from DPSG, Ghaziabad
Class : Class 7

Ans 4:

Shruthi from VIBGYOR, Mumbai
Class : Class 6

Ans 5:

Yatindra G from SBOA, Chennai
Class : Class 4

Ans 6:

Shreshta from Presidium, Ghaziabad
Class : Class 3
D

Ans 7:

Yatindra G from SBOA, Chennai
Class : Class 4
What doubts, Kavin??

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ASHISH K DIXIT from JASPAL KAUR PUBLIC SCHOOL, NEW DELHI
Subject :NSO    Class : Class 6

Ans 1:

Manya Paliwal from NCS Kochi, kochi
Class : Class 7
let's calculate 10 to the power 5. its 10000 seconds . which

Ans 2:

shrawan azad from DPS VASANTKUNJ NEW DELHI, New Delhi
Class : Class 4

Ans 3:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
Class : Class 7

Ans 4:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 7

Ans 5:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
Class : Class 7
Let’s calculate -10 to the 5th power seconds = 105 = 100,000 secondsNow, 60 seconds = 1 minuteOr, 60 x 60 seconds = 3600 seconds = 1 hourOr, 1 second = 1/3600 hourOr, 100,000 seconds = (1/3600) x 100,000 hours = 1000/36 hours = 27.78 hoursNow, let’s see this amount of time is closer to which of the following options:A. Of a full length movie ----- The standard time of a full length movie is 2 hours. So, this option is Incorrect.B. For the Earth to rotate once ----- Earth rotates once in about 24 hours with respect to the Sun. 24 hours is the nearest to 27.78 hours. So, this option is Correct.C. Of an average human lifetime ----- Average human life-time is about 79 years. So, this option is Incorrect.D. Since humans first appeared on the Earth ----- The earliest fossils of anatomically modern humans are from the Middle Paleolithic Age, about 200,000 years ago. So, this option is Incorrect.That means the right answer is Option B.

Ans 6:

Aarav Malviya from INDIAN SCHOOL SALALAH, SALALAH
Class : Class 7

Ans 7:

Chinmay from SBPPS, Pune
Class : Class 7

Ans 8:

Vibhati Ranjan from The Presidential School, Visakhapatnam
Class : Class 6

Ans 9:

Nirbhay from Podar International School, mysore
Class : Class 6

Ans 10:

Nirbhay from Podar International School, mysore
Class : Class 6

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ASHISH K DIXIT from JASPAL KAUR PUBLIC SCHOOL, NEW DELHI
Subject :NSO    Class : Class 6

Ans 1:

Hitesh from Chinmayavidyalaya, Bargarh
Class : Class 6

Ans 2:

Shweta Garg from Vibgyor high, Vadodara
Class : Class 8

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

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Ajitesh Mishra from Vikas the concept school, Hyderabad
Subject :NSO    Class : Class 5

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Adish Gupta from Podar international school , Mumbai
Subject :NSO    Class : Class 7

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Aditri from SVKM J V Parekh International School, Mumbai
Subject :NSO    Class : Class 7

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Adish Gupta from Podar international school , Mumbai
Subject :NSO    Class : Class 7

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ishit from EUROSCHOOL THANE, THANE WEST
Subject :NSO    Class : Class 4

Ans 1:

Sabetha Kasinathan from Mlzs, Hyderabad
Class : Class 4
b

Ans 2:

Shreshta from Presidium, Ghaziabad
Class : Class 3
C

Ans 3:

SAGNIK from Delhi public school, ruby park, kolkata
Class : Class 5
D

Ans 4:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Oops I meant option D

Ans 5:

SAMRIDDHA PANDA from ST. MONFORT'S SENIOR SECONDARY SCHOOL, BARUIPUR
Class : Class 7
D

Ans 6:

aayushi anand from AIR FORCE SCHOOL HASIMARA, HASIMARA
Class : Class 4
A

Ans 7:

Ashkrit kumar Singla from Springdale senior, Amritsar
Class : Class 3
D

Ans 8:

Parthiv Das from Legacy , Bengaluru
Class : Class 5
B

Ans 9:

Advait Kumar Mangalik from The S D Public School, Muzaffarnagar
Class : Class 4
C

Ans 10:

Jayanth from The Deens Academy, Bengaluru
Class : Class 4
B

Ans 11:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
It’s Option B because the Earth is farthest from the sun in position 4.

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ishit from EUROSCHOOL THANE, THANE WEST
Subject :NSO    Class : Class 4

Ans 1:

Nakul Bhasker from National Public School Whitefield, Bangalore
Class : Class 5
for me in the question paper while I was writing it it showed me 'starch is needed for photosyenthesis '.

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