National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5

Ans 2:

Class : Class 7

Ans 3: (Master Answer)

Class : Class 1

The correct answer is D.

The given graph shows that the temperature of water is not increasing with time from period ‘X’ to ‘Y’, which shows that drum. water has attained its boiling point (100°C). On reaching boiling point, the temperature of water does not increase further and water converts into vapour.


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Subject :NSO    Class : Class 5

Shruti took a white carnation flower and split its stalk halfway along the length and arranged a setup as shown in the given figure. After some time, she observed that half of the petals turned blue and half turned red. A section through stem also showed blue and red coloured areas.
What can she infer from this experiment?


A Stem conducts water to all plant parts.
B Stem has localised structures for conduction of water.
C Stem conducts solutes alongwith water.
D All of these


give this kind of more questions please

Ans 1:

Class : Class 7
PLS EXPLAIN

Ans 2:

Class : Class 6
I got it wrongBut i figured that answer is d

Ans 3:

Class : Class 5
The answer is D

Ans 4:

Class : Class 5
Stem carries water to all parts of plants

Ans 5:

Class : Class 5

Ans 6:

Class : Class 6
I got it correct DRITHI. super easy question

Ans 7:

Class : Class 7
ya

Ans 8:

Class : Class 7
did anyone get this correct

Ans 9:

Class : Class 5
where is the solution

Ans 10:

Class : Class 5
(B) or (D)?

Ans 11:

Class : Class 5
The stem absorbed the color along with the water, so some parts of the stem and the flower turned blue or red.

Ans 12:

Class : Class 5
What is the solution of this question. It is not appearing

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 7
Wind is a form of renewable energy.

Ans 2:

Class : Class 6
wind

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Oooooooo.......... Smart

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4
just try to guess

Ans 4:

Class : Class 7
I don't know either

Ans 5:

Class : Class 6
Ans is C. See PERSON in number positions: 16 05 18 19 15 14. Now keep the numbers in ascending order: 05 14 15 16 18 19:ENOPRS. Now OLYMPIAD in number positions: 15 12 25 13 16 09 01 04. Now keep the numbers in ascending order: 01 04 09 12 13 15 16 25:ADILMOPY.

Ans 6:

Class : Class 6
what is the method to solve this ? i did not understand this question

Ans 7:

Class : Class 4
i dont know any method to solve this but i have one thing to guess

Ans 8:

Class : Class 7
me too

Ans 9:

Class : Class 6

Ans 10:

Class : Class 7
What is the method for solving this?

Ans 11:

Class : Class 4
really never thought of doing in this method though

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Subject :NSO    Class : Class 9

Ans 1:

Class : Class 9
Option a is correct

Ans 2:

Class : Class 9
C10H16O is the answer

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Subject :NSO    Class : Class 4

The given statements which summarise the process of digestion are not given in a correct sequence. Arrange them in sequence and select the correct option.
P. Absorption of water
Q. Churning of food and addition of digestive juices
R. Mixing with saliva
S. Complete digestion of food and absorption of nutrients
T. Expulsion of faeces

A R → Q → S → P → T
B R → S → Q → P → T
C R → Q → P → S → T
D R → P → Q → S → T


Ans 1:

Class : Class 4
A is the correct answerWhen food is taken in the mouth, it is chewed and gets mixed with saliva secreted in the mouth (R). Once swallowed, the food moves through the oesophagus into the stomach where churning and digestion of food with digestive juices occurs (Q). The semi-digested food then moves into the small intestine where complete digestion as well as absorption of nutrients occur (S). From the undigested food, the water is absorbed in the large intestine (P). After this, the undigested food is expelled through the anus in the form of faeces (T).

Ans 2:

Class : Class 5

Ans 3:

Class : Class 4
The correct answer is A

Ans 4:

Class : Class 4

Ans 5:

Class : Class 4

Ans 6:

Class : Class 4

Ans 7:

Class : Class 4
i am dr manali parmar

Ans 8: (Master Answer)

Class : Class 1

The correct answer is A.

When food is taken in the mouth, it is chewed and gets mixed with saliva secreted in the mouth (R). Once swallowed, the food moves through the oesophagus into the stomach where churning and digestion of food with digestive juices occurs (Q). The semi-digested food then moves into the small intestine where complete digestion as well as absorption of nutrients occur (S). From the undigested food, the water is absorbed in the large intestine (P). After this, the undigested food is expelled through the anus in the form of faeces (T).


Ans 9:

Class : Class 4
the correct answer is: A

Ans 10:

Class : Class 4

Ans 11:

Class : Class 4

Ans 12:

Class : Class 4

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Subject :NSO    Class : Class 4

In a research, it is proved that in old age one should take more quantity of proteins in diet than any other group of food. Which of the following justifies this?

A Proteins help to repair and build muscles. In old age, muscle growth increases, hence protein intake should be more.
B Proteins help to repair and build muscles. In old age, muscles become weak, hence protein intake should be more.
C Proteins give energy to the body. In old age, the body needs more energy to work, hence protein intake should be more.
D Proteins give energy to the body. In old age, the body uses stored fat hence, protein intake should be more.


Ans 1:

Class : Class 5
Proteins act like building blocks of our body

Ans 2:

Class : Class 6
B. Protein intake should be more. It repair and build muscle

Ans 3:

Class : Class 5

Ans 4: (Master Answer)

Class : Class 1

The correct answer is B.

 


Ans 5:

Class : Class 4

Ans 6:

Class : Class 4

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Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1

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Subject :NSO    Class : Class 2

Ans 1: (Master Answer)

Class : Class 1

Please visit our website- http://www.sofworld.org or call us at  0124-4951200 (Landline No), 9312680855, 9312680857 (Mobile:).


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Subject :NSO    Class : Class 5

A student investigates erosion using four kinds of equal amount of earth materials: top soil, clay, sand and soil planted with grass. Equal amounts of water is allowed to flow from the surface of each type of earth material. The water is then separated out from the earth material with the help of a filter. The given figure shows the amounts of earth material that are collected. The results of this investigation best support which conclusion?


ATop soil is easily eroded.
BSand has a smooth texture.
CWater travels fastest through soil planted with grass.
DWater drains most quickly through clay.


Can you please explain.

Ans 1:

Class : Class 4
answer a soil erosion will occur

Ans 2:

Class : Class 5
top soil is easily eroded (a)

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