National Science Olympiad Forum By SOF Olympiad Trainer - Page 205

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Subject :NSO    Class : Class 6

Rashmi, a class 6 teacher listed the given materials on the board and asked students to classify them on the basis of transparency.
(I) Window glass (II) Oily paper
(III) Metal sheet (IV) Thin muslin cloth
(V) Concrete wall
Which of the following represents the correct classification?

AI, IV-transparent; II-translucent; III, V-opaque
BI, II-translucent; III-opaque; IV, V-transparent
CI-transparent; II, IV-translucent; III, V-opaque
DV-opaque; II, III-translucent; I, IV-transparent


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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6

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

Ans 2:

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

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 4
yes , answer should be B

Ans 5:

Class : Class 2
answaer should be B

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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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