National Science Olympiad Forum By SOF Olympiad Trainer

bharat gawade from ,

Subject :NSO Class : Class 6

There is a mistake in the following classification.

Which of the following is placed incorrectly in the groups ?

A Wool
B Carbon
C Iron
D Silver.

Ans 1:

Mahak from Sarvodya sr sec school, Jhajjar

Class : Class 6

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bharat gawade from ,

Subject :NSO Class : Class 6

Study the given conversation and select the correct option regarding W, X Y and Z.

A W and X are calcium and phosphorus.
B W and X are sodium and potassium.
C Y is folic acid and Z is copper.
D Y is iodine and Z is iron.

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bharat gawade from ,

Subject :NSO Class : Class 6

Read the given statements and select the correct option
Statement 1 : The rainwater in mountains flows away down the slopes, leaving very little water for the trees to absorb
Statement 2 : To conserve water, the leaves of the pine trees are needle-like to reduce the loss of water due to evaporation.

A Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
B Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
C Statement 1 is true and statement 2 is false.
D Both statements 1 and 2 are false

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Ans 1:

Ajit kumar from centre point, NAGPUR

Class : Class 4

Ans b As less water is absorbed by soil so there is scarcity of water. Leaves of pine trees are modified to spines as the surface area of needle like leaves is much less than normal leaves and less transpiration is done by them. In that way pine trees save water.

Ans 2:

sachinthite@rocketmail.com from Sinhghad Public School Korti, Pandharpur

Class : Class 4

ok dadaaaa

Ans 3:

SANAJY GOPAL BHARTARIYA from ST. FIDELIS COLLEGE, LUCKNOW

Class : Class 6

leaves of pine trees are needle like so that snow falls easily and do not collect on the leaves so i think the answer is wrong

Ans 4:

ansh mehta from rajhans vidyalaya, Mumbai

Class : Class 7

I agree with you, sanajy, this adaptation is done in desert plants. In mountaineous plants its done for something else.

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bharat gawade from ,

Subject :NSO Class : Class 6

Refer to the following conversation.

Select the correct option about the above conversation.

A Raghav and Priya made correct statements.
B Siddhartha cited the reason for Raghav's assertion.
C Only Priya made the correct statement.
D None of these

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Ans 1:

Shreyas Gupta from CHIREC International, Hyderabad

Class : Class 8

ya bro

Ans 2:

Mohinder singh from Sacred heart convent school, Ludhiana

Class : Class 7

Demonstrate the same with the help of a picture so as to have a better understanding of this question.

Ans 3:

ISHRAT SINGLA from D.A.V. PUBLIC SCHOOL, B.R.S. NAGAR, LUDHIANA., Ludhiana

Class : Class 9

Yes it should be done

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bharat gawade from ,

Subject :NSO Class : Class 6

Refer to the given food chain.

Leaves → Caterpillars → Bird

With respect to it which of the following graphs correctly shows the relationship between the consumer populations?
KEY :
-------- Caterpillar population
________ Bird population

A
B
C
D

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Ans 1:

Tishyo BANDYOPADHYAY from , Kolkata

Class : Class 3

Ans 2:

Ajit kumar from centre point, NAGPUR

Class : Class 4

Ans D As the bird population decreases the caterpillar population will increase as there will be no one to eat the them and control their population.

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bharat gawade from ,

Subject :NSO Class : Class 6

The figure shows, what was observed when a magnet brought close to the object.What could the object be made of ?

A Gold
B Steel
C Copper
D Aluminium

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bharat gawade from ,

Subject :NSO Class : Class 6

Which of the following diagrams demonstrate the law of reflection?

A
B
C
D

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Kalpana Dubey from R K SARDA VIDYA MANDIR, Raipur

Subject :NSO Class : Class 5

There were 123 players at a soccer camp. The players were divided into teams having 11 players each. What was the total number of teams and the total number of players left over?

(A) 10 teams, with 3 players left over

(B) 11 teams, with 1 player left over

(C) 11 teams, with 2 players left over

(D) 12 teams, with 3 players left over

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Nivedita Srikant from St. John's Universal School, Mumbai

Subject :NSO Class : Class 3

An experiment was carried out as shown in the figure. The plant was left in a room for two days. What would you observe about the plant after two days?