National Science Olympiad Forum By SOF Olympiad Trainer - Page 599
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SOMDATTA BHATTACHARYA from Delhi Public School, Dhaligaon, Bongaigaon
Subject :NSO    Class : Class 4

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Arundhathi from NATIONAL PUBLIC SCHOOL, CHENNAI
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Yes!!

Ans 2:

Himanshu Tiwari from Billabong High International School, Bhopal
Class : Class 4
Yes they do.

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Pranesh Sathish Kumar from Diya Academy of learning, Bengaluru
Subject :NSO    Class : Class 7

Ans 1:

Ved prajapati from Adani Vidya Mandir , Ahmedabad
Class : Class 8
(a)p

Ans 2:

Ritesh Narayan Das from Adamas International School, Kolkata
Class : Class 10
R

Ans 3:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with A

Ans 4:

Kartik Saxena from Mercy Memorial School, Kanpur
Class : Class 7
I will go with A

Ans 5:

Ashwin Shridhar from Vidyashilp Academy, Bangalore
Class : Class 9
R

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ADITHI M from NARAYANA E TECHNO SCHOOL, BANGALORE
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B. The pattern is in increasing powers of 5.

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SUBRATA MUKHERJEE from ,
Subject :NSO    Class : Class 8

Ans 1:

Amol Athawale from WoodRidge High, aurangabad
Class : Class 7

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

Ans 3:

PARTH JAIN from DPS INDIRAPURAM, GHAZIABAD
Class : Class 8

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Shivansh Tiwari from Deens Academy , Bangalore
Subject :NSO    Class : Class 3

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Khushie from Gdgps gurugram, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

UMA Subramanian from Global Indian International School, Singapore
Class : Class 7

Ans 2:

Jasmit kaur from Sun Valley International School, Vashundra
Class : Class 7

Ans 3:

Navya GUPTA from dps noida, Noida
Class : Class 3
Flowers should always be bright coloured to attract insects

Ans 4:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
Opt. B is incorrect as the stigmas in wind pollinated flowers is dull colored.

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Khushie from Gdgps gurugram, Gurgaon
Subject :NSO    Class : Class 5

Ans 1:

harry potter from Hogwarts school of witchcraft and wizardry , london
Class : Class 5
Answer should be (A) because the soil from which the water took 35 seconds to pass, must be gravel as we all have read that there are 4 types of soils 1)gravel 2)sandy soil 3)loamy soil and 4)clay. Sandy soil comes in 2nd place when you conduct an experiment about the abilities of the quantity of water the type of soil can absorb. so I say that the sandy soil should be the one that let the water pass through it in 48 seconds.

Ans 2:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
answer should be y.

Ans 3:

OISHIK KUNDU from Delhi Public school North kolkata, baranagar
Class : Class 4
Raman took four similar pots (with a hole at the base) each with equal amount of different type of soil. He then placed these four pots on four similar dishes and poured water slowly on each soil sample. He used a stopwatch to measure the time taken by water to reach the level he had marked at the same height in each dish. The results obtained by him were tabulated in the table shown . The soil whose particles are fine and are closely packed together will not have much space between the particles. So, water will pass slowly through such soil, and will take more time to reach the marked level. On the other hand, the soil whose particles are big and are loosely held together – like sandy soil - will have ample space between the particles. So, water will pass easily through such soil, and will take less time to reach the marked level. The table shows that the water has taken the least amount of time – 35 seconds – to pass through Soil Y and reach the marked level. That means Soil Y will be most suitable for the plant which thrives in sandy soil. Hence, the correct answer is Option C.

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Ojas Patil from Vikhe Patil Memorial School Pune, Pune
Subject :NSO    Class : Class 6

Ans 1:

Gauri Singh from St Johns School Marhauli, Varanasi
Class : Class 8
The answer is opt. c

Ans 2:

Krishiv Gupta from Sat Paul Mittal School, Ludhiana
Class : Class 6
c = correct

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Ojas Patil from Vikhe Patil Memorial School Pune, Pune
Subject :NSO    Class : Class 6

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