National Science Olympiad Forum By SOF Olympiad Trainer

Aarav Chopra from Springdales School, Pusa Road, New Delhi

Subject :NSO Class : Class 4

Match the given columns and select the correct option.

	Column I		Column II
(A)	Green plants	1.	Dead plant and animal remains
(B)	Earthworm	2.	Blood
(C)	Mosquito	3.	Nectar
(D)	Butterfly	4.	Sunlight

A(A) - 1, (B) - 2, (C) - 3, (D) - 4
B(A) - 4, (B) - 1, (C) - 2, (D) - 3
C(A) - 4, (B) - 2, (C) - 1, (D) - 3
D(A) - 3, (B) - 2, (C) - 1, (D) - 4

yep

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Akshitha from Dav, Chennai

Subject :NSO Class : Class 4

Study the given food chains and select the correct option.

APlant → Lion → Goat → Tiger
BWheat → Bird → Elephant → Lion
CGrass → Grasshopper → Frog → Snake
DCorn → Chicken → Snake → Elephant

Ans 1:

Akshitha from Dav, Chennai

Class : Class 6

x

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Nihid Binoj from DPS International School Singapore, Singapore

Subject :NSO Class : Class 4

In dehydration, food is preserved by

AFreezing
BDrying
CAdding salt
DSteaming.

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Nihid Binoj from DPS International School Singapore, Singapore

Subject :NSO Class : Class 4

How many circles are there in the given figure?

A20
B18
C12
D21

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ALICE from Delhi Public School, UDAIPUR

Subject :NSO Class : Class 4

Which of the following words can be made from the letters of the given word?
RECOMMENDATION

AMEDIATE
BNATIONAL
CREMINDER
DCOMMUNICATE

The correct is B . "RECOMMENDATION" L IS NOT IN THE WORD

Ans 1:

ALICE from Delhi Public School, UDAIPUR

Class : Class 8

Ans 2:

ALICE from Delhi Public School, UDAIPUR

Class : Class 8

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Saket Khurana from DPS E-CITY BENGALURU, BENGALURU

Subject :NSO Class : Class 4

The given figure represents the distance between the three objects. Which of the following will occur if Moon and Sun interchange their position?

AAll the water bodies on the Earth will dry up.
BLife on the Earth will no longer exist.
CDays will be shorter on the Earth.
DBoth A and B

DHINA DHI DHA, DHINA DHIN DHA!

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Saket Khurana from DPS E-CITY BENGALURU, BENGALURU

Subject :NSO Class : Class 4

Amit continued to heat 100 mL of pure water for 15 minutes, after it reached boiling point. Which of the following figures shows the result at the end of his experiment?

A
B
C
D

APSJMV9T8UBN9E8RYGSPN4VWNR8BNREUSB09M0PMBTNMU-R98BNER98

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Ans 1:

Gargi from Ursuline Convent Sr. Sec. School , Noida

Class : Class 5

B

Ans 2:

Vaidehi Bhushan Ishwarkar from Center Railway School, Kalyan, Kalyan

Class : Class 4

B

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Aayush Reddy Bomidika from Delhi Public School Nacharam, Hyderabad

Subject :NSO Class : Class 4

In a certain language, 'PARENT' is coded as 'TNERAP'. How will 'FLOWER' be coded in the same language?

AREWLOF
BREWOFL
CRWEOLF
DREWOLF

ans=D

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Arihaan Beri from Lotus Valley International School, Noida

Subject :NSO Class : Class 4

The given graph shows the amount of changes in the number of fish in a water body in a year.

Select the incorrect option regarding this.

AAt time P, some factory was established near the water body that discharged its used water in it.
BAt time Q, the factory was relocated to some other part, away from the water body.
CAt time R, large amount of oil was accidentally spilled into the water body.
DAt time S, a new factory was established near the water body.

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Souradeepto Das Mandal from Oakridge International School, Hyderabad

Class : Class 5

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Vivaan gulati from NPS international , Singapore

Subject :NSO Class : Class 4

Which of the following is a correct match?

AShip - Harbour
BHelicopter - Airport
CAeroplane - Helipad
DAll of these

its wrong

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Ankit from Delhi Public School Megacity Kolkata, KOLKATA

Class : Class 5

User Forum

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