National Science Olympiad Forum By SOF Olympiad Trainer - Page 129
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Sudip from DPS Gurgaon, New Delhi
Subject :NSO    Class : Class 4

Ans 1:

Pranati Choudhury from Saint Joseph School, Kendrapara
Class : Class 7
The full form of IAU is International Association of Universities

Ans 2:

Sudip from DPS Gurgaon, New Delhi
Class : Class 4
The full of IAU is International Astronomical Union.

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Sudip from DPS Gurgaon, New Delhi
Subject :NSO    Class : Class 4

Ans 1:

Sudip from DPS Gurgaon, New Delhi
Class : Class 4
The full form of IAU is International Astronomical Union.

Ans 2:

ARNAV GARG from PRUDENCE SCHOOL, New Delhi
Class : Class 10
Uranus

Ans 3:

Rishit kunwar from Dps mathura road, New Delhi
Class : Class 4
Uranus

Ans 4:

Namratha from JGRVK, Bengaluru
Class : Class 5
uranus

Ans 5:

Pranati Choudhury from Saint Joseph School, Kendrapara
Class : Class 7
Jupiter has 3 rings. Uranus has 13 rings. Neptune has 5 rings

Ans 6:

SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH
Class : Class 8
Jupiter has 3 Rings, Uranus has 13 Rings, Neptune has 6 Rings & Saturn has 12 Rings.

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Parag Talsonia from DAV Public School, Jamshedpur
Subject :NSO    Class : Class 4

Ans 1:

Sushil Kumar from dpsnoida, Noida
Class : Class 7
Sunflower

Ans 2:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
The fusion of pollen and egg cell leads to the formation of seed. Fusion of pollen and egg cell results in the formation of an embryo that further develops into a seed.

Ans 3:

MANASVI SINHA from Bal Bharati Public School, NTPC -Sipat, Bilaspur
Class : Class 4
D: Sunflower

Ans 4:

Vansh Goel from Spring Dale Senior School, AMRITSAR
Class : Class 7
sunflower

Ans 5:

Namratha from JGRVK, Bengaluru
Class : Class 5
sunflower

Ans 6:

Dibyanshu Dibyajyoti Das from TATA DAV Public School, Joda,Keonjhar
Class : Class 5
D : Sunflower

Ans 7:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
Sunflower is a day-blooming flower. It grows best in full sunlight. Sunflower oil is extracted from its seeds, which is widely used in cooki ng.

Ans 8:

ishan from delhi public school kalinga, Cuttack
Class : Class 5
Option D

Ans 9:

Shubham Singhal from St. Mary's Sr. Sec. School, New Delhi
Class : Class 7
sunflower

Ans 10:

Krupaal M Shankar from Sri Vidya Mandir Education Society Malleswaram Bangalore, Bengaluru
Class : Class 9
D: Sunflower

Ans 11:

Freddin.J from don bosco school of excellence,chennai, Chennai
Class : Class 4
sunflower

Ans 12:

Nandana from St Thomas Residential School, Trivandrum
Class : Class 10
Sunflower

Ans 13:

M.MURUKESH from KV no:1 Jipmer Campus, Puducherry, Puducherry
Class : Class 4
Sunflower

Ans 14:

ishan from delhi public school kalinga, Cuttack
Class : Class 5
Option D

Ans 15:

Pranati Choudhury from Saint Joseph School, Kendrapara
Class : Class 7
Option D Sunflower

Ans 16:

mitra from dav model school, Durgapur
Class : Class 5
D: sunflower

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Parag Talsonia from DAV Public School, Jamshedpur
Subject :NSO    Class : Class 4

Ans 1:

M.MURUKESH from KV no:1 Jipmer Campus, Puducherry, Puducherry
Class : Class 4
Seed

Ans 2:

Pranati Choudhury from Saint Joseph School, Kendrapara
Class : Class 7
Option A. seed

Ans 3:

mitra from dav model school, Durgapur
Class : Class 5
A: Seed

Ans 4:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
The fusion of pollen and egg cell leads to the formation of seed. Fusion of pollen and egg cell results in the formation of an embryo that further develops into a seed.

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Parag Talsonia from DAV Public School, Jamshedpur
Subject :NSO    Class : Class 4

Ans 1:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
Fir and pine are non- flowering plants. Hence, the correct option is A.

Ans 2:

Ananya from Delhi Public School, Meerut
Class : Class 7
D: Fern and tulsi

Ans 3:

Sarthak Kumar from Delhi Public School, INDORE
Class : Class 7
D . FERN AND TULSI

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Parag Talsonia from DAV Public School, Jamshedpur
Subject :NSO    Class : Class 4

Ans 1:

mitra from dav model school, Durgapur
Class : Class 5
D: sunflower and marigold

Ans 2:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
Sunflower and marigold are naturally yellow in colour. Both of them are used for making yellow dye. Thus, the worker should choose sunflower and marigold flowers for making yellow dye. Hence, the correct answer is D.

Ans 3:

AMBALIKAA from LOYOLA SCHOOL BHUBANESWAR, Bhubaneswar
Class : Class 7
d

Ans 4:

ISHAAN PRIYADARSHI from G D Goenka School, New Delhi
Class : Class 4
MARS

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Shweta Basu from Amity international School, Gurgaon
Subject :NSO    Class : Class 4

Ans 1:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Kilogram

Ans 2:

AMBALIKAA from LOYOLA SCHOOL BHUBANESWAR, Bhubaneswar
Class : Class 7
S.I unit of mass is kilogram and S.I unit of weight is newton

Ans 3:

MANASVI SINHA from Bal Bharati Public School, NTPC -Sipat, Bilaspur
Class : Class 4
Kilogram

Ans 4:

Sayan from DPS, Gurgaon
Class : Class 6
Kilogram

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Shweta Basu from Amity international School, Gurgaon
Subject :NSO    Class : Class 4

Ans 1:

Namratha from JGRVK, Bengaluru
Class : Class 5
temparature

Ans 2:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Temperature

Ans 3:

Freddin.J from don bosco school of excellence,chennai, Chennai
Class : Class 4
temparature

Ans 4:

Sarthak Kumar from Delhi Public School, INDORE
Class : Class 7
TEMPERATURE IT HAS 2 TYPES = ROOM TEMPERATURE MEASURES THE ROOM TEMPERATURE BODY TEMPERATURE MEASURES THE BODY TEMPERATURE

Ans 5:

AMBALIKAA from LOYOLA SCHOOL BHUBANESWAR, Bhubaneswar
Class : Class 7
There are two types of thermometer - Celcius or centigrate thermometer and ferenrite thermometer. The ferenrite is usually used to measure our core body temperature

Ans 6:

MANASVI SINHA from Bal Bharati Public School, NTPC -Sipat, Bilaspur
Class : Class 4
Temperature

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meenakshi from St Columba School, delhi
Subject :NSO    Class : Class 4

Ans 1:

Shriyans from DPS Raipur, Raipur
Class : Class 7
Mars

Ans 2:

Shriyans from DPS Raipur, Raipur
Class : Class 7
Mars

Ans 3:

AMBALIKAA from LOYOLA SCHOOL BHUBANESWAR, Bhubaneswar
Class : Class 7
b . We use friction in three types - Static friction , Sliding friction , Rolling friction. Here we are using sliding friction .

Ans 4:

Shriyans from DPS Raipur, Raipur
Class : Class 7
B] Frictional force

Ans 5:

KAZA LOHITAKSH from Srimathi Sundaravalli Memorial school , Chennai
Class : Class 4
B.Frictional Force

Ans 6:

MANASVI SINHA from Bal Bharati Public School, NTPC -Sipat, Bilaspur
Class : Class 4
B. Frictional Force

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meenakshi from St Columba School, delhi
Subject :NSO    Class : Class 4

Ans 1:

SHREYAS ANDOTRA from RYAN INTERNATIONAL SCHOOL, CHANDIGARH
Class : Class 8
A Hot , Summer

Ans 2:

KAZA LOHITAKSH from Srimathi Sundaravalli Memorial school , Chennai
Class : Class 4
A.Hot,Summer

Ans 3:

AMBALIKAA from LOYOLA SCHOOL BHUBANESWAR, Bhubaneswar
Class : Class 7
a. Because woollen clothes trap air and make us feel warm.

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