National Science Olympiad Forum By SOF Olympiad Trainer

Dhairya from Delhi Public School, Bokaro Steel City

Subject :NSO Class : Class 6

Tarun faces towards North. Turning to his right, he walks 25 metres. He then turns to his left and walks 30 metres. Next, he moves 25 metres to his right. Finally, he turns to the right and moves 40 metres. In which direction is he now from his starting point?

ASouth-West
BSouth
CNorth-West
DSouth-East

Ans would be B as not mention any points for sun directions

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Ans 1:

Nami Deliwala from Savitridevi Hariram Agarwal International School, Mumbai

Class : Class 8

Ans 2:

mugil varman from santham vidhayalaya, triuchrapalli

Class : Class 7

Ans 3:

Adhrit Tripathi from Elpro International, Pune

Class : Class 9

Ans 4:

Aditya from vidyasagar international school , faridabad

Class : Class 7

D

Ans 5:

Dhairya from Delhi Public School, Bokaro Steel City

Class : Class 7

Ans would be B

Ans 6:

Medhansh Malhohtra from Delhi Public School, Noida, Delhi

Class : Class 7

yes

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Om N M from The Samhita Academy, Bengaluru

Subject :NSO Class : Class 8

Refer to the given food web.

If a non-biodegradable insecticide known as DDT was sprayed onto the pine tree, in which of the following organisms will most of the DDT eventually accumulate?

AGolden-crowned kinglet
BSnake
CRed-tailed hawk
DOak acorns

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Ans 1:

Om N M from The Samhita Academy, Bengaluru

Class : Class 8

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Giselle Shah from Sapphire International School, Noida

Subject :NSO Class : Class 5

Find the odd one out a) 23 b)21 c)35 d)51

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SpaceXX from indian school sohar, Muscat

Subject :NSO Class : Class 9

Observe the given diagram showing change in state carefully.

Which of the following is correct identification for processes P to U?

A Q → Vaporisation, S → Liquification, U → Solidification
B P → Melting, Q → Condensation, S → Solidification
C S → Sublimation, P → Liquification, U → Solidification
D P → Fusion, R → Condensation, T and U → Sublimation

How tf is U Sublimation WHAT

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Ans 1:

Gokul Warrier M from SRI KUMARANS MALLASANDRA, BANGALORE

Class : Class 9

Here U should be deposition and T should be sublimation, therefore the answer is "D"

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Chinmay S Amboori from Adani Public School, Mundra

Subject :NSO Class : Class 4

Which of the following is an INCORRECT statement?

AWe should not leave toys on the floor after playing
BWe should not mop the bathroom floor after taking bath
CWe should always swim in the presence of an adult
DWe should not consume any medicine on our own

Clicked on option B showing D as your answer

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Saanjana from Vibgyor , Mumbai

Subject :NSO Class : Class 7

Which of the following options do not satisfy the condition of placement of dots as in the Fig. (X)?

A
B
C
D

How?

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Archit Borkar from SSVM World School, Coimbatore

Subject :NSO Class : Class 7

Which of the following is a correct statement?

A In winters, the wind flows from the land to the ocean.
B The coastline of India is not vulnerable to cyclones.
C A cyclone is formed in a very high-pressure area with very high speed winds revolving around it.
D None of these

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Ans 1:

Dhruv Singh from VIBGYOR HIGH HORAMAVU, BANGALORE

Class : Class 9

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ambrish shukla from Modern acadmey, Ghaziabad

Subject :NSO Class : Class 8

Identify P, Q and R in the given flow chart and select the correct option regarding them.

AP - Passenger pigeon, Q - Red panda, R - Humpback whale
BP - Snow leopard, Q - Ivory-billed woodpecker, R - Bengal tiger
CP - Asian elephant, Q - Indian rhinoceros R - Gee’s golden langur
DP - Sea mink, Q - Lion-tailed macaque, R - Nilgiri langur

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Ans 1:

ambrish shukla from Modern acadmey, Ghaziabad

Class : Class 8

Ans 2:

ambrish shukla from Modern acadmey, Ghaziabad

Class : Class 8

Ans 3:

Aryasri Sahu from KV IIT Powai, Mumbai

Class : Class 9

A

Ans 4:

Trina from Ganges Valley School, Hyderabad

Class : Class 9

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Archishman Pal from Sri Krishna Mission School, Agartala

Subject :NSO Class : Class 7

Read the given statements and select the option that correctly states them as true (T) and false (F) ones.
(i) Food protects us from diseases.
(ii) Ingredients of food that we eat comes from plants only.
(iii) People living in different states of India eat same kind of food.
(iv) In carbohydrates, hydrogen and oxygen occur in the ratio of 2 : 1

A(i) - T; (ii) - F; (iii) - F; (iv) - T
B(i) - T; (ii) - T; (iii) - F; (iv) - F
C(i) - F; (ii) - T; (iii) - T; (iv) - F
D(i) - F; (ii) - F; (iii) - F; (iv) - T

Do junk food also protects us from diseases ?

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Ans 1:

Archishman Pal from Sri Krishna Mission School, Agartala

Class : Class 9

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Nandana from St Thomas Residential School, Trivandrum

Subject :NSO Class : Class 10

A constant current of 3.0 A flows counter clockwise in the circular coil P as shown in figure.

What is the direction of the induced current in the coil Q on the right?

AClockwise
BCounter clockwise
COut of the page
DThere is no induced current

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Anaya Parag Bhanuwanshe from Ashoka Universal school , Nashik

Class : Class 10

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