National Science Olympiad Forum By SOF Olympiad Trainer - Page 199

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 8

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Subject :NSO    Class : Class 6

Study the given table carefully and select the correct statement regarding P, Q, R and S.

Rough
materials
P Miscible
with water
Translucent
Rock Graphite Vinegar Frosted
glass
Bark of
a tree
Metal
spoon
Milk Tracing
paper
Sand
paper
Iodine
crystals
R Oiled
paper
Q Copper
vessel
Lemon
juice
S

AP can be replaced by metallic materials and S can be replaced by clear water.
BQ can be replaced by pumice stone and R can be replaced by honey.
CP can be replaced by lustrous materials and S can be replaced by aluminium foil.
DBoth B and C


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Subject :NSO    Class : Class 2

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Subject :NSO    Class : Class 4

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
lammeeeeeeeeee

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Subject :NSO    Class : Class 1

Ans 1:

Class : Class 4
yes , answer should be B

Ans 2:

Class : Class 2
answaer should be B

Ans 3:

Class : Class 1
I think answer is B not C, moon will not raise on EAST and set on WEST

Ans 4:

Class : Class 2
Moon does not rise in east everyday. C is the wrong answer. B is right one

Ans 5:

Class : Class 2
Sun and the moon both rise in the east and set in the west so C is correct

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Subject :NSO    Class : Class 6

Refer to the given dichotomous key.


ADeficiency of P causes a disorder called anaemia which can also be caused by deficiency of a vitamin known as B12.
BOur body is capable of manufacturing Q so we need not supplement it externally through our diet.
CDeficiency of R causes beriberi in children and pellagra in adults.
DS also helps in building resistance against infection in children and is found abundantly in citrus fruits.


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Subject :NSO    Class : Class 7

Read the given statements and select the correct option.
(i) In insects, circulating body fluids serve to distribute oxygen to tissues.
(ii) Yeasts respire aerobically, therefore, they are used to make wine and beer.
(iii) Bronchitis is the inflammation of bronchi which may be caused on exposure to air pollutants.
(iv) In a healthy person, maximum capacity of lungs for inhaled air is 1500 mL.
(v) Sneezing expels the foreign particles from the inhaled air.

A Statements (i), (ii) and (iv) are incorrect, while statements (iii) and (v) are correct.
B Statements (i), (ii) and (iii) are incorrect, while statements (iv) and (v) are correct.
C Statement (ii) is incorrect, while statements (i), (iii), (iv) and (v) are correct.
D Statements (ii) and (v) are incorrect, while statements (i), (iii) and (iv) are correct.


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Subject :NSO    Class : Class 7

Read the following statements and select the correct option.
Statement 1 : Yeast is single-celled organisms which is used in baking and brewing industry.
Statement 2 : Yeast carry out anaerobic respiration, i.e., fermentation and release, ethyl alcohol and carbon dioxide.

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 but statement 2 is false.
D Both statements 1 and 2 are false.


Ans 1:

Class : Class 3

Ans 2:

Class : Class 8
Actually, both statements are not related. So I think the answer should be option b)

Ans 3:

Class : Class 7
it should be (b)

Ans 4:

Class : Class 3

Ans 5:

Class : Class 7
It should be B

Ans 6:

Class : Class 7

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