National Science Olympiad Forum By SOF Olympiad Trainer - Page 37
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Vidushi from DPS, BENGALURU
Subject :NSO    Class : Class 4

Ans 1:

Arnav Raj Sharma from GEMS International School the ultra master mega, Gurgaon
Class : Class 7
givesolution

Ans 2:

mishika tripathi from DPS, Gurugram, Haryana
Class : Class 5
no solution for this

Ans 3:

Emma Miriam George from Sophia High School, Bangalore
Class : Class 3
ok

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Agriye Kamboj from ST.XAVIER SEC SE CO ed Bhopal, BHOPAL
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

D

Solution is the liquid mixture in which the minor component (the solute) is dissolved in the major component (the solvent). So, when Pinki made lemonade by dissolving lemon juice and little sugar in water, it means lemon juice and sugar are the solutes, Water is the solvent, and lemonade is the solution.


Ans 2:

vineet8026@gmail.com from dps, Doha
Class : Class 1

Ans 3:

Utkarsh Priyam from DSE, hyderabad
Class : Class 7

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Lakshya from NPS agara, Bengaluru
Subject :NSO    Class : Class 4

Ans 1:

Aditya Rai from Kv No.1 Icchanath, Surat
Class : Class 6

Ans 2: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

P reproduces by spores and makes its own food, so P could be fern.Q makes its own food but does not reproduce by spores, so Q could be banyan tree or neem tree.


Ans 3:

Ava from trio, bangalore
Class : Class 2

Ans 4:

Ava from trio, bangalore
Class : Class 2

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priya from indian school, muscat
Subject :NSO    Class : Class 4

Read the given passage and select the correct inferences from the information provided in it.
In liquids, the molecules are not packed as close together as in solids. There are spaces between the molecules. So, they can move around more freely. When sugar is dissolved in water, the sugar molecules fill these empty spaces.
Inference:
(i) When sugar dissolves in water, the volume of water increases.
(ii) Liquid has no definite shape and volume.
(iii) Liquid can flow.
(iv) When all the empty spaces between the water molecules are filled with sugar molecules, then no more sugar can be dissolved.

A (i) and (iii) only
B (ii) and (iii) only
C (i) and (iv) only
D (iii) and (iv) only


Ans 1:

VISHISHT S PILLAI from Bethany High School, Bangalore
Class : Class 4
The correct answer is D

Ans 2:

Navvi Maya KPR from Sacred Heart Matriculation Higher Secondary School, Chennai
Class : Class 6

Ans 3:

Samridh from DelhiPublicSchoolBangloreNorthCambridgeInternational, banglore
Class : Class 6
The Correct Answer is d

Ans 4:

ANUSHKA from NOTRE DAME ACADEMY, BARH
Class : Class 8

Ans 5:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
the volume of water will increase when we add sugar in it...the correct answer should be c

Ans 6:

k tagore from montessori school, KURNOOL
Class : Class 3
master answer

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BHUVANESH2010 from MAYOOR PRIVATE SCHOOL, ABU DHABI
Subject :NSO    Class : Class 4

Ans 1:

Srujan Kumar Behera from KV 1 Balasore, Balasore
Class : Class 6

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Vaibhav from The Millennium School , Dubai
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

C

We observe that in the 2nd bottle, water has frozen and overflowed over the rim of the bottle. This means that volume of water increases when it freezes. So. it has expanded beyond the rim of the bottle.


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Rithvik from BVM Global, Chennai
Subject :NSO    Class : Class 4

Ans 1:

Iraj Singh from DPS Megacity, Kolkata
Class : Class 7
The correct answer is option A not any other option.

Ans 2:

Srihitha from HIS, Bangalore
Class : Class 4
A

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Abhinha Ajay Ovhal from Podar International School, Latur
Subject :NSO    Class : Class 4

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priya from indian school, muscat
Subject :NSO    Class : Class 4

Ans 1:

Bushra aslam from uttam, Ghaziabad
Class : Class 8

Ans 2:

priya from indian school, muscat
Class : Class 5

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 8
A

Ans 4:

Rupsa Bhattacharjee from South City International School, Kolkata
Class : Class 5
a

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Diya Jasmina from Samsidh MLZS, Bengaluru
Subject :NSO    Class : Class 4

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