National Science Olympiad Forum By SOF Olympiad Trainer

Aradhya Shankar from Vibgyor, Kolhapur

Subject :NSO Class : Class 3

Few objects have been classified into two groups on the basis of a particular characteristic as shown in the table. Identify the characteristic and select the correct option.

AElasticity
BElectric conductivity
CWaterproof nature
DFloating ability

ccc

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Ans 1:

Aradhya Shankar from Vibgyor, Kolhapur

Class : Class 4

c

Ans 2:

Risha Maithani Chaurasia from Euro School Kharadi, Pune

Class : Class 3

Ans 3:

Shree Sinha from Seth Anandram Jaipuria , Patna

Class : Class 4

C

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Samith Ramesh from National public school East, Bangalore , Bangalore

Subject :NSO Class : Class 6

Anant took four different types of crushed food samples I, II, III and IV in four different test tubes. He then added Benedict's solution to each one of them and heated for one minute. The final colour in each one of the test tubes is given in the chart below.

Which among the given food items have sugar present in them?

AI and II only
BIII and IV only
CII and III only
DI and III only

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Ans 1:

Deveshi Sachdev from venkateshwar international school, New Delhi

Class : Class 6

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Ayaan Ali from Don Bosco , Kolkata

Subject :NSO Class : Class 2

Aman is blind-folded and he is asked to differentiate some pairs of items. Which of the following pairs of items can he differentiate? Aman

(A) A glass of orange juice and a glass of plain water.
(B) A piece of red and a piece of blue cloth.
(C) A round ball and a rectangular box.
(D) An empty piggy bank and a piggy bank with some coins in it.

A (A) and (D) only
B (B) and (C) only
C (A), (C) and (D) only
D (A), (B), (C) and (D)

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Divit Soni from Sapphire International School, Noida

Subject :NSO Class : Class 3

In which season the given flower is available in plenty? Sunflower (a). Summer (b). Winter (c). Monsoon (d). Autumn

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Aurinjay Mukhopadhyay from Future Foundation School, KOLKATA

Subject :NSO Class : Class 4

Lugda is associated with which among the following Indian states?

AWest Bengal
BMaharashtra
CNagaland
DPunjab

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Aurinjay Mukhopadhyay from Future Foundation School, KOLKATA

Subject :NSO Class : Class 4

Select the INCORRECT option.

AMetal is lustrous and is used for making utensils.
BWood is opaque and elastic, and is used for making furniture.
CMarble sinks in water and is a bad conductor of electricity.
DGlass is brittle and is non-magnetic.

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Ans 1:

Jeevika from St Marys , Titardi , Udaipur

Class : Class 4

Option B is correct because wood is opaque, elastic and used for making furniture. I searched 2 times on Google.

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Nabhya Sinha from DPS, Vadodara

Subject :NSO Class : Class 8

A candle flame is placed in between two charged plates as shown in the given figure. Which of the following diagrams best represents the shape of flame?

A
B
C
D

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Naitik gupta from Lotus valley international school Noida extension, greater noida west

Subject :NSO Class : Class 7

Which among the given graphs correctly shows the effect of light intensity and carbon dioxide concentration on photosynthesis?

A
B
C
D

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Jeevika from St Marys , Titardi , Udaipur

Subject :NSO Class : Class 3

Select the INCORRECT statement regarding air.

A Air is a mixture of many gases like nitrogen (78%) , oxygen (21%) and others including carbon dioxide (1%) .
B Carbon dioxide is the gas that we breathe in.
C The oxygen in the air is required for burning things.
D When a balloon is overfilled with air, the air pressure inside becomes greater than the air pressure outside and it bursts.

carbon dioxide is the gas that we breath out. not the gas that we breath in. oxygen is the gas that we breath in. so it is incorrect. that means the answer is b.