National Science Olympiad Forum By SOF Olympiad Trainer

JANYA CHANGELA from UDGAM SCHOOL FOR CHILDREN , Ahmedabad

Subject :NSO Class : Class 7

Read the given experiment and answer the following questions.Paper pins are stuck to a metal rod with wax and a lighted candle is kept below the rod as shown in the diagram below.

Which one of the paper pins will fall off the metal rod first?

A P
B Q
C R
D S

ANSWER IS OPTION A WHICH IS P.

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Ans 1:

Bhumanyu from The Khaitan School, NOIDA

Class : Class 7

A

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Aarnav Grover from Anand Niketan Shilaj, Ahmedabad

Subject :NSO Class : Class 5

Study the given relationship and select the option which satisfies the same relationship.

ATape grass : Water lily : Water lettuce
BWater lily : Tape grass : Water hyacinth
CWater hyacinth : Water lily : Tape grass
DWater lettuce : Water hyacinth : Water lily

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Ans 1:

Sahasra Shanker from KV IIT, Chennai

Class : Class 6

Correct answer is 'C'.Explanation:In the given box duckweed is a floating aquatic plant, lotus is a fixed aquatic plant and Hydrilla is a submerged aquatic plant. Same relationship is shown by water hyacinth (floating aquatic plant), water lily (fixed aquatic plant) and tape grass (submerged aquatic plant).

Ans 2:

Abhijeet Kumar Jha from New Era Senior Secondary School, Nizampura, Vadodara

Class : Class 5

A

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Can I get Rank 35 darryl from Global Indian international school, Brawl stars

Subject :NSO Class : Class 7

Refer to the given dichotomous key.

AP could be fenugreek whereas Q could be corn or maize.
BR could be egg whereas S could be honey.
CR could be obtained from a flying insect whereas S could be obtained from both oviparous and viviparous animals.
DP could be turmeric or ginger whereas Q could be rice or lentils.

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Ans 1:

ALICE from Delhi Public School, UDAIPUR

Class : Class 9

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Saksham Chanani from Sri Sri Academy, Kolkata

Subject :NSO Class : Class 5

Manisha categorised living organisms on the basis of body covering. She made four groups of three organisms each. By mistake she placed one wrong member in each group. Identify the wrong member of each group and select the correct option.
Group I : Gecko, Python, Capybara
Group II : Mussel, Parakeet, Oyster
Group III : Dove, Sparrow, Hippopotamus
Group IV : Hedgehog, Porcupine, Tortoise

ACapybara of group I should be interchanged with oyster of group II.
BMussel of group II should be interchanged with porcupine of group IV.
CHippopotamus of group III should be interchanged with hedgehog of group IV.
DParakeet of group II should be replaced with clam.

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Ans 1:

Hitanshi Behera from Loyola School , Bhubaneswar

Class : Class 4

oye balle balle dhe shava shava, balle balle dhe shava shava, pio pio re kava kava, gana khatham hua

Ans 2:

Sanskrti from Sri Chaitanya Techno School, Electronics City

Class : Class 4

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Devansh from asn senior secondary school, delhi

Subject :NSO Class : Class 5

Ritu has a toy puppy that can bark, jump, wag tail and move. Its eyes shine when patted. It is operated by a battery. Which of the following energy conversions do not take place in this puppy?

AChemical energy → Kinetic energy

BChemical energy → Sound energy

CChemical energy → Light energy

DChemical energy → Magnetic energy

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Ans 1:

Akshaj Malhotra from Salwan Public School, Gurugram

Class : Class 7

DDDDDDDDDDDDDDDDDDDDDDDD

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Devansh from asn senior secondary school, delhi

Subject :NSO Class : Class 5

When night becomes very cold, X freezes to form Y. What can be X and Y here?

----------- X--------Y
AHail--------Snow
BDew--------Frost
CFrost--------Dew
DSnow-------Hail

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Dhruv Kumar from St Peters Sr. Sec.School, Sector 37B Chandigarh

Class : Class 5

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Devansh from asn senior secondary school, delhi

Subject :NSO Class : Class 5

Which of the following options correctly represents the conditions present on land and water when a sea breeze flows?

---------On land-------------On water
AHigh pressure--------Low pressure
BHigh temperature----Low temperature
CLow pressure---------Low pressure
DLow temperature----High temperature

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Ans 1:

Sargun Maini from The Khaitan School, NOIDA

Class : Class 6

all the questions are illogical epecially of force work and energy

Ans 2:

Srishti Verma from Basava International School, New delhi

Class : Class 5

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anu from Haralur, Bengaluru

Subject :NSO Class : Class 1

Complete the following paragraph by choosing the correct sequence of words.
We all need ____ to live. Clean water should not be ____. Plants need water to ____. Loss of water can cause a plant to ____.
A Air, Thrown, Wilt, Die
B Air, Drunk, Grow, Wilt
C Water, Wasted, Grow, Wilt
D Water, Wasted, Wilt, Die

c

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anu from Haralur, Bengaluru

Subject :NSO Class : Class 1

Richa did an activity as shown below.

She observed bubbles coming out of the glass. What does this activity show?
A The empty glass is filled with air.
B Water displaces air in the glass.
C Air comes out of the water in the form of bubbles.
D All of these

d

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Ans 1:

KRISHNARGHYA PRAMANIK from DELHI PUBLIC SCHOOL, MEGACITY, KOLKATA WEST BENGAL

Class : Class 5

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AD from Vibgyor Highschool, Pune

Subject :NSO Class : Class 2

Refer to the safety rules written on the board.
When you swim
1. Do not play rough games in the pool.
2. Always swim in the deep end.
3. Always take a rubber tube with you.
4. Avoid swimming with a grown-up near you.
Which of the safety rules is/are INCORRECT?

A1 and 3 only
B4 only
C2 and 4 only
D1, 2 and 3 only

QUESTION IS WRONGLY FRAMED

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