National Science Olympiad Forum By SOF Olympiad Trainer - Page 60
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Paavni Vaish from VIBGYOR HIGH HENNUR, Bangalore
Subject :NSO    Class : Class 4

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Aajani Datta from The Samhita Academy, Bangalore
Subject :NSO    Class : Class 4

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rajanya mandal from j h ambani, surat
Subject :NSO    Class : Class 4

Ans 1:

UMANG from spring dale college, Lucknow
Class : Class 7
The answer is D. because the the substance in which solute is dissolved is called solvent. and the mixture formed from solvent and solute is called solution.

Ans 2:

Jeet Anandani from Pawar public school, Mumbai
Class : Class 4

Ans 3:

AVANTIKA V from St.joseph of Cluny school , Puducherry
Class : Class 6
Solute Solvent =Solution

Ans 4:

Kashvi Chirag Radhakrishnan from Vidya Valley,Susroad, Pune, Pune
Class : Class 4
yep it should be C

Ans 5:

Atrijo Ghosh from Don Bosco Liluah, Howrah
Class : Class 4
The answer is wrong.It should be option C

Ans 6:

Kashvi Chirag Radhakrishnan from Vidya Valley,Susroad, Pune, Pune
Class : Class 4

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DEVANG Gupta from B K birla school kalyan, Kalyan
Subject :NSO    Class : Class 4

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Fareeha siddiqua from Janki Devi public school , Mumbai
Subject :NSO    Class : Class 4

Ans 1:

PRANAB KUMAR from MARIAS PUBLIC SCHOOL, Guwahati
Class : Class 6
i did not understand anything/

Ans 2:

Kavin from ISG , Muscat, Muscat
Class : Class 5
so did i pranab

Ans 3:

Krishika Madan Shanmugam from National Public School, Bangalore
Class : Class 4
Yes the answer is B

Ans 4:

Saanchi singh from AVM BKC , Mumbai
Class : Class 4
X is carbon dioxide Y is chlorophyll Z is oxygen So then the correct answer would be B

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Aaryaman Pradhan from De paul School , Berhampur
Subject :NSO    Class : Class 4

Ans 1:

Ridhan from SFS janakpuri, New Delhi
Class : Class 5
answer is d because after new moon cresent moon comes after 2 days

Ans 2:

UMANG from spring dale college, Lucknow
Class : Class 7
the answer is D. because after the full moon, there comes the glibbous moon

Ans 3:

Aadya Kawale from Podar International ICSE , Dombivli East
Class : Class 4
Given figures show the shapes of Moon seen from Earth on different nights:We know that the moon changes from one phase to the next in approximately 3 days. Same is shown by the above figures. Let’s see what all phases the moon has, and put the above given dates to the right phases:That means on January 17, it would be a crescent moon – waxing crescent moon.Hence, the right answer is Option D.

Ans 4:

AAYANSH from New horizon scholars school, Thane
Class : Class 5
eweaafdzdxfdxfxfxcxhvcxhfd ttfutdxdxudfxudfxfccfcf

Ans 5:

AAYANSH from New horizon scholars school, Thane
Class : Class 5

Ans 6:

AVANTIKA V from St.joseph of Cluny school , Puducherry
Class : Class 6
D

Ans 7:

Isabelle Joy from The Shriram Millennium School Noida , Noida
Class : Class 4

Ans 8:

Sushree snehasikta behera from Mother's public school , Bhubaneswar
Class : Class 2
D is the correct answer as the moon takes approximately 3 days change from one phase to another. after new moon cresent moon comes.

Ans 9:

AAYANSH from New horizon scholars school, Thane
Class : Class 5

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Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon
Subject :NSO    Class : Class 4

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Devansh k joshi from Lotus, Ahmedabad
Subject :NSO    Class : Class 4

Ans 1:

Rishit Garg from Bhavan s B P Vidya Mandir , Nagpur
Class : Class 9

Ans 2:

Ibrahim Aslam from uttam, Ghaziabad
Class : Class 5

Ans 3:

A Venkata Sai Pranav from Podar International School, Bhusawal
Class : Class 9
the words are circled in the grid only

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Snehal Akolkar from vikhe patil, Pune
Subject :NSO    Class : Class 4

Ans 1:

Atheeq Ahmed Shaik from Ravindra Bharathi Global School, chennai
Class : Class 6

Ans 2:

virat varshney from Pawna International School , HATHRAS
Class : Class 7

Ans 3:

Shreyansh Saha from Dps Megacity, Kolkata
Class : Class 5
Option b

Ans 4:

EKLAVYA GONDULE from DPS BHILAI, Bhilai
Class : Class 7

Ans 5:

Bhanu V from World One , Hyderabad
Class : Class 4
B

Ans 6:

Gunnit Kant from DPS, Nerul, Navi Mumbai
Class : Class 5
its B

Ans 7:

Tanishka Laha from Euroschool, Bengaluru
Class : Class 5
The plant shown has fleshy stems to store water.

Ans 8:

Anjishnu Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Class : Class 5
4B

Ans 9:

Atheeq Ahmed Shaik from Ravindra Bharathi Global School, chennai
Class : Class 6

Ans 10:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
Answer d

Ans 11:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 9
The correct answer is option B.

Ans 12:

Student from School, City
Class : Class 5
the correct answer is b

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Pranav Kiran Rajarathna from The Samhita Academy, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

Tanishka Laha from Euroschool, Bengaluru
Class : Class 5
(A) cannot be the right answer as once the water vaporizes, there is no scope for sedimentation. (B) cannot be the right answer as once the mixture is filtered, the sand shall be collected on the filter paper while the clean water shall be collected in a beaker.Evaporation is not required. The answer is (C) because sand is heavier than water and shall settle down at the bottom of the beaker.This process is called sedimentation.Subsequently,the clear water from the top can be decanted out. (D) cannot be the right answer as once decantation is done, the clear filtrate shall be left over and filtration is not required.

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