National Science Olympiad Forum By SOF Olympiad Trainer

Vikram from AVM, Mumbai

Subject :NSO Class : Class 6

Study the given figure and select the incorrect option for P, Q, R and S.

AP is usually colourful and helps to attract the insects.
BR is usually green in colour and protects the inner parts of flower when it is in bud stage.
CQ is male reproductive part of the plant.
DS receives pollen grains from anther.

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Ans 1:

arun from Delhi public School Dhuri , m

Class : Class 6

ooooops

Ans 2: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

D

S is the Ovary of the female reproductive part of the plant. But it’s the Stigma which first receives the pollen grains from anther. These pollens then travel down through the Style and reach the Ovary.

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Shweta Garg from Vibgyor high, Vadodara

Subject :NSO Class : Class 6

Amit uprooted a plant and found fleshy tubers in roots as shown in the figure. What could he infer about the plant by observing the roots?

A The root system do not penetrate deep in the soil. Both main roots and their branches are thin and thread-like.
B The plant has leaves with reticulate venation only.
C The root system follows acropetal orientation i.e., the youngest towards growing point and oldest towards the base of the main root.
D Both b and c.

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PRANAV VELDURTI from meridian school madhapur, hyderabad

Subject :NSO Class : Class 6

The given figure shows a zinc bar placed near a strong magnet. Four compasses P, Q, R and S are arranged near by the magnet and the zinc bar as shown. Which one of the compasses does point to the wrong direction?

AP
BQ
CR
DS

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Ans 1:

Advaith V from NPS Koramangala, Bangalore

Class : Class 8

Ans 2:

Gargi from Sanskriti School, Pune

Class : Class 7

it will always have to point in the north, north-west or the north east direction as a compass will always point north south direction

Ans 3:

Anay rathore from Sps, Bhopal

Class : Class 6

Do not focus on zinc bar just focus on the magnetic field of it

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Shweta Garg from Vibgyor high, Vadodara

Subject :NSO Class : Class 6

Study the following information carefully and answer the question given below:
A, B, C, D, E, F, G and H are sitting around a circle facing at the centre. C is third to the left of A and second to the right of E. B is second to the right of C. D is second to the right of F who is second to the right of A. G is not an immediate neighbour of C.
Who is third to the right of H?

A E
B F
C D
D G

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Ans 1:

Shweta Garg from Vibgyor high, Vadodara

Class : Class 8

hye guy's house for rent on Friday the 25th will also have some of you to get some sleep over at your place on top and I have no problem for a little

Ans 2:

Shweta Garg from Vibgyor high, Vadodara

Class : Class 8

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Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore

Subject :NSO Class : Class 6

Study the food chain given below.
R → W → X → Y → Z
If organism Y is removed from the food chain above, which one of the following graphs shows the changes in the other populations?

A
B
C
D

b

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Ans 1:

Harshita Sharma from NES International, Mumbai

Class : Class 9

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Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore

Subject :NSO Class : Class 6

Read the given passage and answer the question that follow.
The polar regions are covered with snow. There may also be snowfall in mountain regions during the winter. The trees growing on mountains are cone-shaped, with sloping branches. Many of them, such as pine, have sharp needle-like leaves. Animals living on mountains have thick skin or fur to protect themselves from cold, e.g., yaks and snow leopards.
What other adaptation(s) of animals is/are observed in the colder areas?

ABirds and mammals of colder areas are larger in size as compared to their equivalents in warmer areas.
BAnimals of colder areas have shorter extremities (e.g., tail, ears, feet) as compared to animals in warmer areas.
CBirds of colder areas have broader wings.
DBoth a and b.

d

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Ans 1:

Ishaan Gupta from Cornerstone Public School, Hyderabad

Class : Class 7

Ans 2:

Amrik Pal from Kendriya Vidyalaya DRDO, Bangalore

Class : Class 6

d

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Shreya Shruti from Airforce school , Bengaluru

Subject :NSO Class : Class 3

Which of the following animals shows the eating habit similar to that of the animal shown in the figure?

A
B
C
D

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Ans 1:

Sushree snehasikta behera from Mother's public school , Bhubaneswar

Class : Class 2

The given figure shows an elephant. It is a herbivore, it eats grasses, small plants, bushes, fruit, twigs, tree bark and roots. Rabbit is a herbivore. Crows and bears are omnivores while lion is a carnivore.

Ans 2: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

C

The given figure shows an elephant. It is a herbivore, it eats grasses, small plants, bushes, fruit, twigs, tree bark, and roots. Rabbit is also a herbivore. Crows and bears are omnivores while lion is a carnivore.

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Gunnika from MVN, Faridabad

Subject :NSO Class : Class 4

Read the conversation between three friends.

Select the correct option for P, Q and R.

A P can be roasting and R can be bacteria
B R can be fungi, Q can be boiling
C Q can be dehydration, P can be steaming
D Q can be steaming, R can be bacteria

ANSWER is C !!

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Ans 1:

Deveshi Sachdev from venkateshwar international school, New Delhi

Class : Class 5

c

Ans 2:

saketh from VIBGYOUR HIGH ,BTM layout Bangalore, Bangalore

Class : Class 4

c

Ans 3:

Deveshi Sachdev from venkateshwar international school, New Delhi

Class : Class 5

Ans 4:

Zoya Fatima from Study Hall School, Lucknow

Class : Class 3

Ans 5:

Gunnika from MVN, Faridabad

Class : Class 3

ANSWER is C !!!

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Aayush Tripathy from SAI International School, Bhubaneswar

Subject :NSO Class : Class 6

Look at the given figure. It consists of a cell, a bulb with the two terminals X and Y and wires with ends P and Q; and S and R. The direction of current will be

A PQRS
B SRQP
C PRQS
D SQRP.

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Ans 1:

Rayansh Mishra from VIBGYOR HIGH MAGARPATTA, Pune

Class : Class 9

I didn't see the battery closely

Ans 2:

Avtansh singh from Gail dav public school , Dibiapur

Class : Class 7

Ans 3:

Avtansh singh from Gail dav public school , Dibiapur

Class : Class 7

Current flow positive terminal to negative terminal

Ans 4: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

A

The direction of current will be PQRS because the current flows from positive terminal of the cell to the negative terminal.

Ans 5:

Rishon Chandy from KV IIT Powai, Mumbai

Class : Class 7

Yes. exactly ........great answer

Ans 6:

Avtansh singh from Gail dav public school , Dibiapur

Class : Class 7

A

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Shweta Garg from Vibgyor high, Vadodara

Subject :NSO Class : Class 6

Study the given pattern carefully and select the one with same pattern.

A radish : cauliflower : carrot : broccoli
B banana : turnip : rice : sugarcane
C mango : coriander : wheat : apple
D carrot : turnip : radish : ginger

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