National Science Olympiad Forum By SOF Olympiad Trainer

bswarajya from Mount Litera Zee School, Bengaluru

Subject :NSO Class : Class 4

Dehydration is a method of preserving food by ?

Ans 1:

bswarajya from Mount Litera Zee School, Bengaluru

Class : Class 5

Drying

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SOUMI PAL from DELHI PUBLIC SCHOOL, DURG

Subject :NSO Class : Class 4

________ hatches cut from the egg in the life cycle of the animal shown here.

A Maggot
B Nymph
C Larva
D Tadpole

Ans 1:

Vaibhabi Debbarma from HOLY CROSS SCHOOL AGARTALA, AGARTALA

Class : Class 6

Class:4B

Ans 2:

aayushi anand from AIR FORCE SCHOOL HASIMARA, HASIMARA

Class : Class 4

B

Ans 3:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore

Class : Class 8

Yes answer is BCheck solution

Ans 4: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

Ans 5:

bswarajya from Mount Litera Zee School, Bengaluru

Class : Class 5

B-nymph

Ans 6:

Suhana Kedia from Griffin's international school, Kharagpur

Class : Class 5

Then what is maggot ? I get confused in maggots and nymphs

Ans 7:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida

Class : Class 7

Ashmi and Aayushi, I agree, the correct answer is option 'B'- Nymph.

Ans 8:

Siddhi from The Shriram Mellinium School, gurgaon

Class : Class 4

B

Ans 9:

Aarya Ranjan from Chrysalis High Varthur, bangalore

Class : Class 5

it is b

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Ayush from Dps, Bengaluru

Subject :NSO Class : Class 4

Which of the following will NOT cause environmental pollution?

AUsing fossils like coal, diesel and petrol more than CNG.
BDischarging wastes only into oceans and not into rivers or ponds.
CUsing less biodegradable materials than non-biodegradable materials.
DReducing the usage of chemical fertilizers and pesticides.

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Ans 1:

Ayush from Dps, Bengaluru

Class : Class 3

Ans 2:

Ayush from Dps, Bengaluru

Class : Class 3

Ans 3:

aayushi anand from AIR FORCE SCHOOL HASIMARA, HASIMARA

Class : Class 4

D

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ishit from EUROSCHOOL THANE, THANE WEST

Subject :NSO Class : Class 4

Which of the given figures, represents a state of matter, that has a definite volume but no definite shape?

AP
BQ
CR
DBoth Q and R

View All Answers (7)

Ans 1:

Durjoy Datta from Venkateshwar International School, Sector 10, Dwarka, New Delhi

Class : Class 5

It's not D its B. Q is a liquid which has no definite shape but has definite volume. Hence, Option b is correct

Ans 2:

Deveshi Sachdev from venkateshwar international school, New Delhi

Class : Class 6

it is b

Ans 3:

ishit from EUROSCHOOL THANE, THANE WEST

Class : Class 7

Can you tell the answer to this question please please!!!!!!!!

Ans 4:

aayushi anand from AIR FORCE SCHOOL HASIMARA, HASIMARA

Class : Class 4

D

Ans 5:

Deveshi Sachdev from venkateshwar international school, New Delhi

Class : Class 6

the answer is B

Ans 6:

Crystal Zadfiya from Kameshwar International School, Gandhinagar

Class : Class 4

happy test

Ans 7:

aayushi anand from AIR FORCE SCHOOL HASIMARA, HASIMARA

Class : Class 4

D

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Ayush from Dps, Bengaluru

Subject :NSO Class : Class 4

Shruti tool two similar bowls containing equal amount of water and sand. She placed both bowls in the sun for 2-3 hours. After 2-3 hours she placed both bowls inside the room for 2-3 hours.
Which of the following results she will observe from the given activity?

A Sand heats up faster than the water when kept in the sun and cools up slower than the water when placed inside the room.
B Water heats up faster than the sand when kept in the sun.
C Sand heats up faster than the water when kept in the sun and also cools faster than the water when placed inside the room.
D Water cools down faster than the sand when kept inside the room.

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Ans 1:

AadhiraKarthikumar from Shaanthischoolpollachi, Coimbatore

Class : Class 5

Ans 2:

Aadya Kawale from Podar International ICSE , Dombivli East

Class : Class 4

Ans 3:

Mishka Kankaria from SVKM J V Parekh International School, Mumbai

Class : Class 4

took not tool

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Ajoy Bhuyan from DELHI PUBLIC SCHOOL, Bongaigaon

Subject :NSO Class : Class 4

Given statements show different steps involved in digestion of food. Select the option showing correct sequence of different steps.
a. The digestive juices break down the food into simpler substances.
b. Remaining water is absorbed.
c. Food is chewed and mixed with saliva.
d. Most nutrients are absorbed into the blood.

A c → b → a → d
B c → a → d → b
C a → c → d → b
D a → b → c → d

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Ans 1:

Gunnit Kant from DPS, Nerul, Navi Mumbai

Class : Class 5

the correct answer is B

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DEVANG Gupta from B K birla school kalyan, Kalyan

Subject :NSO Class : Class 4

Which is the INCORRECT statement for the given figure?

A Sea breeze blows from sea to land during the day.
B During day, land gets heated faster than the sea.
C Warm air above the sea rises up, and cooler air from land rushes to the sea.
D Both A and B

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Ans 1:

Sreejani Bhaduri from National Public School, Bangalore

Class : Class 10

Ans 2:

NAMISH AGRAWAL from KV calicut, calicut

Class : Class 4

answer is d

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Manav from TFS Gunjur, Bengaluru

Subject :NSO Class : Class 4

The given diagram shows the positions of water plants P, Q, R and S in a pond. Four pupils Vikas, Shilpi, Beena and Rahul were asked to identify the positions of four plants, viz. water hyacinth, Hydrilla, coontail and water lily in the pond.
Which of these pupils has identified the positions of all given water plants correctly?

		Position of plant in the pond
	Pupil	Water hyacinth	Hydrilla	Coontail	Water lily
A	Vikas	P	Q	R	S
B	Shilpi	S	P	Q	R
C	Beena	P	S	Q	R
D	Rahul	Q	P	S	R

View All Answers (2)

Ans 1:

vivaan sethi from GD goenka public school, Delhi

Class : Class 4

am

Ans 2:

Fazil Farooquee from The Aditya Birla Public School, Baloda Bazaar

Class : Class 4

C

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Aksh Tyagi from DPS East Bangalore, Bangalore

Subject :NSO Class : Class 4

Select the odd one out.

A Cockroach
B Grasshopper
C Butterfly
D House cricket

ooh yay

View All Answers (10)

Ans 1:

SRISANTH from Edify, Tirupathi

Class : Class 5

I think they mean that butterfly has four wings

Ans 2:

Jayanth from The Deens Academy, Bengaluru

Class : Class 4

It is B cause grasshoppers canât fly

Ans 3:

SAGNIK from Delhi public school, ruby park, kolkata

Class : Class 5

WHAT IS HOUSE CRICKET?

Ans 4:

Madhav from Kendriya Vidyalaya Ernakulam, Ernakulam

Class : Class 8

This is based on life cycle of insects. Only butterfly in the given group of insects have 4 stage life cycle (complete cycle). Others have only incomplete life cycle (3 stages)

Ans 5:

Dhaivat Bhatti from KES SMVM School , MUMBAI

Class : Class 9

How is butterfly odd

Ans 6:

Aadya Kawale from Podar International ICSE , Dombivli East

Class : Class 4

Butterfly has4 stages in life cycle and rest have 3.

Ans 7:

RUNAV SHAH from Witty International High School, MUMBAI

Class : Class 5

All the three except cockroches feeds on plants

Ans 8:

Ibrahim Aslam from uttam, Ghaziabad

Class : Class 5

ðhow can grasshopper fly?

Ans 9:

Yatindra G from SBOA, Chennai

Class : Class 4

what is a HOUSE CRICKET?!!

Ans 10:

Reyansh Raut from New Horizon Gurukul, Bangalore

Class : Class 5

Butterfly is made of butter that it is why it is odd

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Aksh Tyagi from DPS East Bangalore, Bangalore

Subject :NSO Class : Class 4

The food shown in the picture is rich in _________ and is called _________.

A Fat, Body building food
B Protein, Energy giving food
C Protein, Body building food
D Fat, Energy giving food

Is it not butter?

View All Answers (7)

Ans 1:

UMANG from SPRING DALE COLLAGE, Lucknow

Class : Class 8

The answer is c.

Ans 2:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram

Class : Class 7

Ans 3:

Aadya Kawale from Podar International ICSE , Dombivli East

Class : Class 4

Oh yeah…The correct option IS C.

Ans 4:

Soumyaraj Roy from Kendriya Vidyalaya , Thiruvananthapuram

Class : Class 7

Ans 5:

AHANA BAG from DELHI PUBLIC SCHOOL JOKA SOUTH KOLKATA, KOLKATA

Class : Class 9

the correct answer is C

Ans 6:

Deveshi Sachdev from venkateshwar international school, New Delhi

Class : Class 6

Ans 7:

UMANG from SPRING DALE COLLAGE, Lucknow

Class : Class 8

The answer is c.

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