National Science Olympiad Forum By SOF Olympiad Trainer - Page 465
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SAIRAM from TRIVENI TALENT SCHOOL, HYDERBAD
Subject :NSO    Class : Class 8

Ans 1:

arnav from the gurukul, Panchkula
Class : Class 5
hyiuhiuhiuhiuohinjkhnjklnh

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Dibyanshu Lahiri from Mont Fort Sr Sec School, Roorkee
Subject :NSO    Class : Class 8

Ans 1:

Aryan Keswani from Delhi Public School, Mathura Road, New Delhi
Class : Class 10
Answer is A Because the question is "ABOVE THE AUDIBLE RANGE, not within"

Ans 2:

Kashish Kathuria from Delhi Public School, Bangalore
Class : Class 9
1000

Ans 3:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
correct answer should be c

Ans 4:

Vartika Agarwal from Phoenix world school, Pune
Class : Class 9
kHz = 1000Hz

Ans 5:

AKSHAJ SRIVASTAVA from MOUNT LITERA ZEE SCHOOL, Kanpur
Class : Class 9
how many kHz = Hz

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Vatsala from DPS, Durg
Subject :NSO    Class : Class 5

Ans 1:

Devrajan from Amity International School, Noida
Class : Class 8
Option D is the correct answer

Ans 2:

AK from Shri Ram Aravali, Gurgaon
Class : Class 6

Ans 3:

Divyanshi from United international School, Bangalore
Class : Class 6
none of the options are correct.

Ans 4:

Kashvi Rawat from Gear Innovative International School, Bengaluru
Class : Class 3
none of the options are correct

Ans 5:

Mridul Jain from Shishukunj International School Indore, Indore
Class : Class 9
Pls explain

Ans 6:

Samyuktha from Sri Chaitanya, Chennai
Class : Class 7
D is the correct answer

Ans 7:

Kashvi Rawat from Gear Innovative International School, Bengaluru
Class : Class 3
D is the correct answer

Ans 8:

AK from Shri Ram Aravali, Gurgaon
Class : Class 6
D is correct

Ans 9:

Shaanvi from ,
Class : Class 5
Correct answer is D not B!

Ans 10:

munish jindal from APJ school, Jalandhar
Class : Class 8

Ans 11:

Pragun goel from Venkateshwar International School, Delhi
Class : Class 8
None of the options are correct

Ans 12:

nandini badola from christ school, dehradoon
Class : Class 5
correct answer is D

Ans 13:

sujata patel from Podar International, Pune
Class : Class 6
I DISCUSSED A LOT .SEARCHED ON GOOGLE. MALARIA IS A NON COMMUNICABLE DISEASE.PLEASE explain IT

Ans 14:

Riya Gupta from Birla Divya Jyoti, Siliguri
Class : Class 8
correct answer should be D

Ans 15:

SIDH DALMIA from GEMS MODERN ACADEMY, Dubai
Class : Class 6
NONE OF THE OPTIONS ARE CORRECT

Ans 16:

Bhavikaa kedia from Anand Niketan Satellite, Ahmedabad
Class : Class 5
I tried reporting an error but it did not work. Please try as well

Ans 17:

CHIRAG KHORIA from EVERGREEN PUBLIC SCHOOL, MAYNAGURI
Class : Class 5
no option is corect,it is d with the diseases interchanged

Ans 18:

VAIBHAV RAI from Cambridge Court High School, JAIPUR
Class : Class 8
no option is correct

Ans 19:

SWAPNIL PAHARI from FUTURE CAMPUS SCHOOL, KOLKATA
Class : Class 8
the correct answer will be both option b and d

Ans 20:

Ananya Joshi from HFS Powai, Mumbai
Class : Class 5

Ans 21:

Ritabrata Das from OPJS, Angul
Class : Class 7

Ans 22:

DIPTANGSU PARBAT from SOUTH POINT HIGH SCHOOL, Kolkata
Class : Class 7

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Avantika Nair from The Study, Pondicherry
Subject :NSO    Class : Class 5

Ans 1:

Ameya from New Era, Vadodara
Class : Class 3
ok

Ans 2:

Saumya Bhope from GK Gurukul, Pune
Class : Class 5
what is the framework of a bone?

Ans 3:

Arohan from DAV, Hyd
Class : Class 6

Ans 4:

Divit Srivastava from NPS , Bangalore
Class : Class 4
its a

Ans 5:

Ritabrata Das from OPJS, Angul
Class : Class 7

Ans 6:

Sartha from Podar International School Kolhapur, Kolhapur
Class : Class 5

Ans 7:

Aadvik Kayastha from Lotus Valley International School, Gurgaon
Class : Class 5
its c

Ans 8:

Sachin Rajan from Lokmanya Vidhya Niketan , Indore
Class : Class 5
It's D option

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arjun from the bishops school camp , pune
Subject :NSO    Class : Class 6

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VANSH GARG from DPSG, GHAZIABAD
Subject :NSO    Class : Class 3

Ans 1:

Atri Pradhan from Oxebow English School, Gobardanga
Class : Class 3
If we in a soil sample, we would see small bubbles on the soil sample.

Ans 2:

FAIZA AMIN from SAINT XAINS INTERNATIONAL SCHOOL ANANTNAG, ANANTNAG
Class : Class 3
D

Ans 3:

Atri Pradhan from Oxebow English School, Gobardanga
Class : Class 3
when we put some water in a soil surface, we cold see small bubbles on the soil surface.

Ans 4:

sujan from scholars world school, hassan
Class : Class 3
D)

Ans 5:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4

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VANSH GARG from DPSG, GHAZIABAD
Subject :NSO    Class : Class 3

Ans 1:

divita saxena from bhavans vidya mandir ashti , nagpur
Class : Class 4
c as in a b d force pull is used

Ans 2:

Karangat house from Navy Children School, Payyannur
Class : Class 3
c

Ans 3:

VANSH GARG from DPSG, GHAZIABAD
Class : Class 4

Ans 4:

Atri Pradhan from Oxebow English School, Gobardanga
Class : Class 3
Hitting the cricket ball with a bat to make a run.

Ans 5:

Shivesh Dan from BAL BHARATI PUBLIC SCHOOL, NOIDA
Class : Class 3

Ans 6:

Naisha Gupta from DPS School, Khajaguda, Hyderabad
Class : Class 3
c

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Aaryav Tiwari from DPS VK, Delhi
Subject :NSO    Class : Class 6

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Aaryav Tiwari from DPS VK, Delhi
Subject :NSO    Class : Class 6

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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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