National Science Olympiad Forum By SOF Olympiad Trainer - Page 464
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Chandreyee from BGKV, Kolkata
Subject :NSO    Class : Class 10

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Sarisha Agarwala from dhirubhai ambani international school, Mumbai
Subject :NSO    Class : Class 7

Ans 1:

Amogh from Sindhi High School, Bangalore
Class : Class 7
yes

Ans 2:

Aditi Anurag from RBK Kanakia School, Thane
Class : Class 8
The answer is option A as baking soda neutralizes the effect of the formic acid

Ans 3:

Dhruva from VSSIPS, Bangalore
Class : Class 7
The answer has to be option A

Ans 4:

from Podar International School,Dhule, Dhule
Class : Class 8
answer should be option a . Baking Soda is used to neutralize forming acid

Ans 5:

Bhargavi from bvb, Pune
Class : Class 7
yes

Ans 6:

soumil srivastava from dps, paradip
Class : Class 9
your answer is wrong baking soda neutralize forming acid

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divanshi from sacred heart convent school, barnala
Subject :NSO    Class : Class 9

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Alvin Anto Ambooken from Stfrancisicse, Bangalore
Subject :NSO    Class : Class 3

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Shreetej from Pearson public school, Pune
Subject :NSO    Class : Class 5

Ans 1:

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

Ans 2:

Pracheta Satapathy from Cygnet Public school, Pune
Class : Class 6
answer option(d)ie H

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Manav from TFS Gunjur, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Devabhrith from Delhi Public School Electronic City Bangalore, Bengaluru
Class : Class 8
A . cereals , potatoes

Ans 2:

SAI KRISHNA from SHISHYA BEML PUBLIC SCHOOL, BANGALORE
Class : Class 3

Ans 3:

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

Ans 4:

Sonal from Vibgyor , Gujarat
Class : Class 5
A

Ans 5:

bswarajya from Mount Litera Zee School, Bengaluru
Class : Class 5
B-green leafy vegetables

Ans 6:

PRACHURJYA GOGOI from Carmel School, Jorhat
Class : Class 3
B

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Deepak Vijayaragavan from Greenwood High, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

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

Ans 2:

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

Ans 3:

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).

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

Ans 1:

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 2:

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

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:

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

Ans 2:

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

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:

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

Ans 3:

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

Ans 4:

Shreyasi Padihary from The Cambridge International School , Bangalore
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:

Navya GUPTA from dps noida, Noida
Class : Class 3

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:

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

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