National Science Olympiad Forum By SOF Olympiad Trainer

Rishit from st XAVIER'S ENGLISH HIGH SCHOOL AND JR college, Thane

Subject :NSO Class : Class 4

Study the given relationship based on adaptations in plants.

Select the option that correctly satisfies the same relationship

AWater lily : Sundew
BWater hyacinth : Hydrilla
CLotus : Venus flytrap
DCedar : Fern

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Ans 1:

Kanishk gupta from Prime academy, Pune

Class : Class 5

B

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uday from NPS, SINGAPORE

Subject :NSO Class : Class 4

give an example of plasma

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Ibrahim Aslam from uttam, Ghaziabad

Subject :NSO Class : Class 4

In which of the following cases, a person is doing work in terms of science?

A Radhika is pushing against a stationary wall.
B Priya is sleeping.
C Meena is standing at bus stop waiting for her school bus.
D Gayatri is opening the main door of her house on hearing the door bell.

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Ibrahim Aslam from uttam, Ghaziabad

Subject :NSO Class : Class 4

What is common between the fifth and eighth planet of our solar system?
1. They are made up of frozen gases.
2. They are made up of rocks and iron.
3. They are neither hot nor cold.
4. They are called interior planets or inner planets.

A1 only
B2 and 3 only
C2, 3 and 4 only
D1, 3 and 4 only

?what ?

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Ans 1:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Class : Class 7

A

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Ibrahim Aslam from uttam, Ghaziabad

Subject :NSO Class : Class 4

A croton plant has colourful leaves. Which one of the following statements is true regarding the croton plant?

AIt can make food because it has yellow pigments in its leaves.
BIt can make food because its mature stems can perform photosynthesis.
CIt can make food because its leaves contain chlorophyll.
DIt is a parasitic plant and cannot make food, hence it obtains food from other green plants.

ðhow??

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Ans 1:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Class : Class 7

C

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Rupsa Bhattacharjee from South City International School, Kolkata

Subject :NSO Class : Class 4

Read the given conversation among three friends.

Who among them made the correct statement?

A Mandira only
B Neha only
C Sumit and Neha only
D Mandira and Neha only

d

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Vikas Jhamb from Bhawan, Chandigarh

Subject :NSO Class : Class 4

Which of the following shows an arrangement of particles in a matter, filled inside the football?

A
B
C
D

a football is filled with air or gas so correct answer should be c

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Ans 1:

Deveshi Sachdev from venkateshwar international school, New Delhi

Class : Class 6

its a

Ans 2:

Ved Taur from PG Garodia School ICSE, Mumbai

Class : Class 4

A

Ans 3:

Rishav Kundu from DAV Public School Midnapore , Medinipur

Class : Class 2

And a

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Nishit Vaity from Euro School Airoli, Navi Mumbai

Subject :NSO Class : Class 4

Study the given adaptation of animal X.
(i) It lives in freezing conditions of Antarctic region.
(ii) It has a thick layer of blubber under the skin.
(iii) It can swim under water.
(iv) It possess feathers.
Which of the following could be animal X?

APolar bear
BWalrus
CPenguin
DEmu

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Ans 1:

Nishit Vaity from Euro School Airoli, Navi Mumbai

Class : Class 6

null null

Ans 2:

AAYANSH from New horizon scholars school, Thane

Class : Class 5

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Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Subject :NSO Class : Class 4

Which one of the following appliances changes electrical energy into both light and sound energy?

AIron
BRoom-heater
CTelevision set
DTube light

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Ans 1:

Dishita Santosh Walujkar from Nutan English School, Kurduwadi

Class : Class 7

C

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Ibrahim Aslam from uttam, Ghaziabad

Subject :NSO Class : Class 4

Rohini observed New Moon on 27^th October. Which phases of Moon will she observe on 4^th November and 11^th November, respectively?

	4^th November	11^th November
A
B
C
D

Wow!

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Ans 1:

suhana priyadarsini nayak from Orchid international school , Bengaluru

Class : Class 6

Answer d is correct as 27th November is New moon and moon changes its phase in every three days .calculate till 4th November you will see then the answer will be half moon or first quarter and then again if you calculate till 11th November the answer will be full moon then answer d is correct

Ans 2:

Iniyan from Indian public school, Salem

Class : Class 5

A is correct in google

Ans 3:

A Venkata Sai Pranav from Podar International School, Bhusawal

Class : Class 9

option A is right answer

Ans 4:

from DELHI PUBLIC SCHOOL, EAST, BANGALORE

Class : Class 4

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