National Science Olympiad Forum By SOF Olympiad Trainer - Page 101
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Saket Khurana from DPS E-CITY BENGALURU, BENGALURU
Subject :NSO    Class : Class 5

Ans 1:

Purohit Mohit Viralbhai from SDA higher secondary school, ahemdabad
Class : Class 8
The following pictures are given as respectively: A.Third class lever B.First class lever C.First class lever D.First class lever The secret is FLE which represents which things come in between. F means Fulcrum so it belongs to first class lever L means Lever which belongs to second class lever E means effort which belongs to third class lever Know it!

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Shaurya Behera from Indian School Muscat, Muscat
Subject :NSO    Class : Class 8

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Saket Khurana from DPS E-CITY BENGALURU, BENGALURU
Subject :NSO    Class : Class 5

Ans 1:

Purohit Mohit Viralbhai from SDA higher secondary school, ahemdabad
Class : Class 8
Option C is correct because only mushrooms are decomposers.

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Nishchay Gupta from Cambridge Court World School, Jaipur
Subject :NSO    Class : Class 8

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Prabhav Akar from Cambridge Court High School, Jaipur
Subject :NSO    Class : Class 7

Read the given statements and select the correct option.
Statement 1 : Cutting of paper into very small pieces is an irreversible change.
Statement 2 : Physical changes are always reversible.

ABoth statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
BBoth statements 1 and 2 are true but statement 2 in not the correct explanation of statement 1.
CStatement 1 is true but statement 2 is false.
DBoth statements 1 and 2 are false.


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sankalp from Gyan Bharti School, Saket, Delhi
Subject :NSO    Class : Class 6

Ans 1:

pranil mishra from KVS, bhubaneswar
Class : Class 8
answer is c because image of an object is formed in retina

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sankalp from Gyan Bharti School, Saket, Delhi
Subject :NSO    Class : Class 6

Ans 1:

pranil mishra from KVS, bhubaneswar
Class : Class 8
answer is b

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Ansh Jain from DPS, Mahendra Hills
Subject :NSO    Class : Class 6

Knocking a nail into a wooden block with a hammer involves conversion between different forms of energy.
Which of the following options present the correct order for this conversion?

AChemical energy → (sound energy + heat energy) → kinetic energy
BChemical energy → kinetic energy → (sound energy + heat energy)
CChemical energy → kinetic energy→ heat energy
D(Sound energy + heat energy) → kinetic energy → chemical energy


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Endha Neel Das from Don Bosco, New Delhi
Subject :NSO    Class : Class 10

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Mihir Baxi from Vikhe Patil Memorial School, Pune
Subject :NSO    Class : Class 5

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