National Science Olympiad Forum By SOF Olympiad Trainer

Advika Singh from The Tribhuvan School, Patna

Subject :NSO Class : Class 8

Read the statements given below and choose the correct option.
Statement 1 : The lowest temperature at which a substance catches fire is called its ignition temperature.
Statement 2 : Kerosene oil does not catch fire at its own at room temperature.

A Statement 1 and statement 2 both are correct and statement 2 is correct explanation of statement 1.
BStatement 1 and statement 2 both are correct but statement 2 is not a correct explanation of statement 1.
CStatement 1 is correct but statement 2 is incorrect.
DBoth the statements are incorrect.

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Rudr Soni from Mount Carmel school, Palampur

Subject :NSO Class : Class 5

Identify 1, 3, 4 and 6 in the given pyramid and select the correct option.

A1- Fruits; 3- Grains; 4- Proteins; 6-Sweets and fats
B1- Grains; 3- Fruits; 4- Proteins; 6-Sweets and fats
C1- Proteins; 3- Fruits; 4- Grains; 6-Sweets and fats
D1- Fruits; 3- Proteins; 4- Fats; 6-Grains

Can you teach me

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Ans 1:

dishen from DePaul , gajuwaka

Class : Class 8

2

Ans 2:

from ,

Class :

feom oxford i

Ans 3:

Shresth Negi from D.P.S Ranipur, Haridwar, Uttarakhand, Haridwar

Class : Class 5

1-Grains; 3-Fruits; 4-Proteins; 6-Sweets & Fats

Ans 4:

from ,

Class :

very bad

Ans 5:

Rudr Soni from Mount Carmel school, Palampur

Class : Class 5

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Akshaj Gupta from Neerja Modi School, Jaipur

Subject :NSO Class : Class 5

Identify solute, solvent and solution in coffee we drink.

	Solute	Solvent	Solution
A	Milk	Coffee powder	Coffee
B	Coffee	Coffee powder	Milk
C	Coffee powder	Milk	Coffee
D	Coffee powder	Coffee	Milk

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Ans 1:

UMA Subramanian from Global Indian International School, Singapore

Class : Class 7

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Aarya Ranjan from Deens Academy Gunjur, Bangalore

Subject :NSO Class : Class 2

If""is called"","is called"and""is called",then______is used to wear in ears.

A
B
C
D

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Ans 1:

Aarav Ashmit from Sai Angan, Bhubaneswar

Class : Class 3

same options ??

Ans 2:

Shambhavi from North Point School, Vashi

Class : Class 5

option watch is not there in the options. here d is wrong

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S Malhotra from SFS , New Delhi

Subject :NSO Class : Class 3

Esha wanted to find if material X would allow water to pass through. She put the material over a container and poured some water onto it as shown in the given diagram. She found that no water was collected in the container. What material could X be?

A Cloth
B Paper
C Glass
D Cardboard

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S Malhotra from SFS , New Delhi

Subject :NSO Class : Class 3

Four objects P, Q, R and S of the same shape but different weights, are put into a tank of water. The given diagram shows what happens when they are in water.
Which of the following is the most likely weight of object R?

A 60 g
B 35 g
C 25 g
D 19 g

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Ans 1:

Aarvi Gosai from The New Tulip International School, Ahemdabad

Class : Class 5

FGVYURSUEIDHSTKVNUYCU9MVDRTBYBIUHNVHLIWEJhtc

Ans 2:

Aarvi Gosai from The New Tulip International School, Ahemdabad

Class : Class 5

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Pramit Roy from Rabindra Bharthi Global School, Kolkata

Subject :NSO Class : Class 5

Refer to the given classification chart of rocks. Select the option that correctly matches the rocks (X, Y, Z) to its characteristic

A X Marble , Y Granite , Z Limestone
B X Sandstone , Y Marble , Z Slate
C X Granite , Y Quartzite , Z Limestone
D X Limestone , Y Gneiss , Z Slate

the answser will be C

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atharva from St John's High School, Mumbai

Subject :NSO Class : Class 8

Select the correct water image of the given figure.

A
B
C
D

how it is

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Ans 1:

Naresh Gadhwal from ryan, Mumbai

Class : Class 8

b

Ans 2:

Aakarsh Jain from Vivkenand School, New Delhi

Class : Class 8

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abhinav from seven days Adventist higher secondary school , ahemdabad

Subject :NSO Class : Class 3

Which of the following clocks shows the time 2 hrs 20 minutes after 9 : 40 a.m.?

A
B
C
D

it is 12:00 bacuse we add in 9:40 20=10:00 AND 10:00 2 HOURS = 12:00

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Ans 1:

Sreyan from Sanskriti The School, Hyderabad

Class : Class 3

ddddddddddddddddddddddddd

Ans 2:

Sagnik Biswas from ST. MARY'S ORPHANAGE AND DAY SCHOOL , Kolkata

Class : Class 3

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Pradumm Raj from Sacred Heart Centenary Academy, Jhansi

Subject :NSO Class : Class 6

Some blobs of wax are placed on a silver ring as shown in the diagram. If the ring is heated at X, then choose the correct option regarding the melting of wax because of heating.

AOnly R blob melts.
BBlobs R, S and Q melt together.
CMelting of blobs occurs in the order R, Q, S and P.
DP, Q, R and S blobs melt together.

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