National Science Olympiad Forum By SOF Olympiad Trainer

Faizan2007 from Birla Public School, Doha

Subject :NSO Class : Class 6

Which of the following statements are incorrect?
(i) Changes in our surroundings that make us respond to them are called stimuli.
(ii) The process of getting rid of body wastes by the living organisms is known as excretion.
(iii) Breathing is a part of a process called circulation.
(iv) Aquatic animals have streamlined bodies to help them use oxygen dissolved in water.
(v) Desert plants have many leaves to reduce loss of water from the leaves through transpiration.

A(i), (iv) and (v)
B(ii) and (v)
C(iii), (iv) and
D(i), (iii) and (iv)

The c options's 3 4 and ____ is not mentioned.

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Ans 1:

KRISHIV from BJM Carmel Acadamy, Chandrapur

Class : Class 6

I got 14 out of 14.

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Rishabh Venkat from VSA Bangalore, Bengaluru

Subject :NSO Class : Class 8

Given are the figures for two types of plastics:

Which of the following statements are correct about P and Q?
I. P is a linear polymer whereas Q is a cross-linked polymer.
II. P is plastic whereas Q is a polymer.
III. P is polymer and Q is plastic
IV. A single square represents a monomer unit.

AI and II
BIII and IV
CI, II, III and IV
DIV only

option 2 is confusing

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Saarth Agrawal from Podar International School , Mumbai

Subject :NSO Class : Class 4

Eyjafjallajokull volcano at Iceland erupted twice in the year 2010. It threw out fine, glassrich ash into the atmosphere. It thereby disrupted air traffic across western and northern Europe and caused inconvenience to air travel. Eyjafjallajokull is an example of________.

AVulnerable volcano
BExtinct volcano
CDormant volcano
DActive volcano

It is still active!

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Ans 1:

Saarth Agrawal from Podar International School , Mumbai

Class : Class 6

Ans 2:

Saarth Agrawal from Podar International School , Mumbai

Class : Class 6

It is still active!

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DIVYA SRIRAM from YUVABHARATHI INTERNATIONAL SCHOOL, SINGAPORE

Subject :NSO Class : Class 7

High speed winds at a place result by

A Increased pressure
B Reduced pressure
C Water vapour
D Static electricity.

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Ans 1:

Janani swethaa from CS ACADEMY, Erode

Class : Class 10

Ans 2:

Aham from vibgyor high, Bangalore

Class : Class 8

there shud be an option saying varied /gradient pressure, that would be the correct answer

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Abhinha Ajay Ovhal from Podar International School, Latur

Subject :NSO Class : Class 1

Objects related to which of the following road signs is NOT hidden in the given word grid?

A
B
C
D

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

C

Option A - Car

Option B - Pedesterian

Option D - Ambulance

Ans 2: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

C

Ans 3:

Sharanyo Chatterjee from Podar International School, Mumbai

Class : Class 2

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Abhinha Ajay Ovhal from Podar International School, Latur

Subject :NSO Class : Class 1

Refer to the given flow chart to identify the animals P, Q and R and select the correct option.

A
B
C
D

c

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Ans 1: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

B

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Sudhir from Chitrakoota School, Bangalore

Subject :NSO Class : Class 4

In which of the following part does digestion and absorption of food take place?

AStomach
BSmall intestine
CLiver
DLarge intestine

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Ans 1:

Shourya from Euro, Bangalore

Class : Class 7

Ans 2:

Sudhir from Chitrakoota School, Bangalore

Class : Class 7

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

Subject :NSO Class : Class 3

Which of the following objects is incorrectly paired with the materials it is made of/from?

-------- Objects -------------- Materials
ASpectacles --------- Plastic and metal
BHammer ------------ Metal and wood
CDrilling machine -- Plastic and metal
DWatch --------------- Wood and rubber

Spectacles are not made from pure glass or pure plastic it is made of fibre which contains some plastic. Hammer is made of metal and wood. Drilling machine has its sides covered with plastic and its engine is of metal and watch is not made of these so answer is D

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Ans 1:

Samar Pratap Singh from DPS Bangalore South, Bangalore

Class : Class 6

Ans 2:

Anaisha Niranjan from DPS Noida, Noida

Class : Class 4

why is answer d please explain

Ans 3: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

D

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SSS from Sai International School, BBSR, BBSR

Subject :NSO Class : Class 2

Plants give us foodgrains. What are the examples of such grains?

A Wheat and rice
B Maize and barley
C Gram and pulses
D All of these

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Ans 1:

Gaurika Bhasin from Genesis global school, Noida

Class : Class 2

The correct answer is D

Ans 2: (Master Answer)

Admin from revisewise, Noida

Class : Class 1

D

Food grains are small dry seeds which are grown by human beings for food, e.g., wheat, rice, maize, barley, gram, pulses, etc.

Ans 3:

Gaurika Bhasin from Genesis global school, Noida

Class : Class 2

Foodgrains are small dry seeds which are grown by humans for food eg maize barely and rice

Ans 4:

mahati from Delhi public school, Hyderabad

Class : Class 6

Correct answer is D because wheat , rice , maize , barley , gram , pulses etc.

Ans 5:

Gaurika Bhasin from Genesis global school, Noida

Class : Class 2

The correct answer is D because all of them are food grains

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

Subject :NSO Class : Class 3

Amit likes to eat food from roadside vendors. He should not eat such food everyday, because ________.

AThis will eventually lead to health problems
BSuch food lacks nutrient values
CSuch food is a rich source of protein
DBoth A and B

D

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Ans 1:

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

Class : Class 8

D D D it's D

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