National Science Olympiad Forum By SOF Olympiad Trainer - Page 489
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Deepak Vijayaragavan from Greenwood High, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Siddharth Laxmisha from The Study Lecole Internationale, PUDUCHERRY
Class : Class 8
Answer is D as both precipitation and condensation are involved in formation of dew in humid nights. The water vapor condenses to form clouds. But, if precipitation was not there, the dew would have remained in the clouds! So, precipitation is also involved in formation of dew on humid nights. Q and R are condensation and precipitation respectively. Thus, the answer is D(condensation and precipitation) and not B(only condensation).

Ans 2:

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

Ans 3:

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

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TRIYA SOUMIK NATH from SYMBIOSIS PRIMARY SCHOOL, PUNE
Subject :NSO    Class : Class 7

Ans 1:

Arnav Raju Ghungal from Mount Carmel international school akola, mothi lokende layout akola
Class : Class 7
Yes it’s correct

Ans 2:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
Since it is in a parallel circuit, resistance offered is more after one of the bulbs is fused. This will increase the brightness of the bulb but decrease the ammeter reading since current is inversely proportional to resistance

Ans 3:

Mahima from APS, lucknow
Class : Class 7

Ans 4:

Sargah Surya from bgsnps, Bengaluru
Class : Class 4
how come??

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SUBHADEEP MOHAPATRA from DAV PUBLIC SCHOOL , ANGUL
Subject :NSO    Class : Class 5

Ans 1:

Cheshika batra from Our lady of Fatima convent school, Patiala
Class : Class 5
A

Ans 2:

Pracheta Satapathy from Cygnet Public school, Pune
Class : Class 6
non of these as all the options are true

Ans 3:

Pracheta Satapathy from Cygnet Public school, Pune
Class : Class 6
non of these as all the options are true

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anika from St Joseph sen sec school Mahoba, Kulpahar
Subject :NSO    Class : Class 5

Ans 1:

BHAVYA from iswk, Oman
Class : Class 6
answer is B. the main mineral present in this rock is quartz-sandstone sandstone can be found in the grid so it is the answer.

Ans 2:

GIRISHA MAHESH SHARMA from Kudilal Govindram English School, Mumbai
Class : Class 6
Answer B is correct

Ans 3:

Navya GUPTA from dps noida, Noida
Class : Class 3

Ans 4:

Shreyasi Padihary from National Public School East, Bengaluru
Class : Class 7
Ans is B. It is an error. Option B should display-'The main mineral present in this SEDIMENTARY rock is quartz' and the answer to that is Sandstone which is present in the grid

Ans 5:

Cheshika batra from Our lady of Fatima convent school, Patiala
Class : Class 5
D

Ans 6:

Shaurya Gote from KV BSF Dantiwada, S K Nagar
Class : Class 5
COAL IS NOT BLACK GOLD. ITS BLACK DIAMOND.............PETROLEUM IS NOT BLACK DIAMOND. ITS BLACK GOLD....................................................

Ans 7:

Pracheta Satapathy from Cygnet Public school, Pune
Class : Class 6
the answer will be d as all are present in the grid

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sandeep mittal from HAL PUBLIC SCHOOL, BANGALORE
Subject :NSO    Class : Class 4

Ans 1:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 2
A is correct answer!

Ans 2:

Savya Sanjay Agarwal from Don Bosco High School, Naigaon East
Class : Class 4

Ans 3:

Dyutimaan Nikam from lions english school, silvassa
Class : Class 4

Ans 4:

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

Ans 5:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 2
How can a be the Ans?

Ans 6:

Aarnav Grover from Anand Niketan Shilaj, Ahmedabad
Class : Class 9
answer is A

Ans 7:

Dyutimaan Nikam from lions english school, silvassa
Class : Class 4
Ans a because C is for tearing food D for grinding and B are not permanant

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Agrimn from Gateway International School, Sonipat
Subject :NSO    Class : Class 6

Ans 1:

Nirbhay from Podar International School, mysore
Class : Class 6
EZ

Ans 2:

Kaustav Bhowal from Julien Day School, Kolkata
Class : Class 10
answer is D

Ans 3:

vishnu from Bodhi, Trivandrum
Class : Class 6
Easy

Ans 4:

Aarav Gupta from Cambridge International School, Jalandhar
Class : Class 6
D none of them

Ans 5:

ABDUTTAIYEB ALIASGER SUTERWALA from Hasanat High School, Mumbai
Class : Class 5

Ans 6:

hrishikesh bauskar from DPS, VADODARA
Class : Class 6
D none of them

Ans 7:

hrishikesh bauskar from DPS, VADODARA
Class : Class 6
D none of them

Ans 8:

Shweta Garg from Vibgyor high, Vadodara
Class : Class 8
00 . . 0 0

Ans 9:

rishabh dutta from indus valley world school, Kolkata
Class : Class 6
the answer is d.

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bswarajya from Mount Litera Zee School, Bengaluru
Subject :NSO    Class : Class 4

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aditya apurva from DAV public School, Duttnagar
Subject :NSO    Class : Class 9

Ans 1:

Chaitanya Gawade from JPS, Pune
Class : Class 9
C

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SOUMI PAL from DELHI PUBLIC SCHOOL, DURG
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
Ashmi and Aayushi, I agree, the correct answer is option 'B'- Nymph.

Ans 3:

Vaibhabi Debbarma from HOLY CROSS SCHOOL AGARTALA, AGARTALA
Class : Class 6
Class:4B

Ans 4:

bswarajya from Mount Litera Zee School, Bengaluru
Class : Class 5
B-nymph

Ans 5:

Suhana Kedia from Griffin's international school, Kharagpur
Class : Class 5
Then what is maggot ? I get confused in maggots and nymphs

Ans 6:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Yes answer is BCheck solution

Ans 7:

Aarya Ranjan from Chrysalis High Varthur, bangalore
Class : Class 5
it is b

Ans 8:

Siddhi from The Shriram Mellinium School, gurgaon
Class : Class 4
B

Ans 9: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

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Dev Rawat from R D Rajpal School, New Delhi
Subject :NSO    Class : Class 8

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