National Science Olympiad Forum By SOF Olympiad Trainer - Page 122

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
Sunflower is a day-blooming flower. It grows best in full sunlight. Sunflower oil is extracted from its seeds, which is widely used in cooki ng.

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Class : Class 4
D: Sunflower

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Class : Class 7
sunflower

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Class : Class 10
Sunflower

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Class : Class 5
D: sunflower

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Class : Class 5
sunflower

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Class : Class 9
D: Sunflower

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Class : Class 7
Sunflower

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Class : Class 4
Sunflower

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Class : Class 5
Option D

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Class : Class 4
sunflower

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Class : Class 5
Option D

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Class : Class 7
The fusion of pollen and egg cell leads to the formation of seed. Fusion of pollen and egg cell results in the formation of an embryo that further develops into a seed.

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Class : Class 7
Option D Sunflower

Ans 15:

Class : Class 7
sunflower

Ans 16:

Class : Class 5
D : Sunflower

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
A: Seed

Ans 2:

Class : Class 7
The fusion of pollen and egg cell leads to the formation of seed. Fusion of pollen and egg cell results in the formation of an embryo that further develops into a seed.

Ans 3:

Class : Class 4
Seed

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Class : Class 7
Option A. seed

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
D . FERN AND TULSI

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Class : Class 7
Fir and pine are non- flowering plants. Hence, the correct option is A.

Ans 3:

Class : Class 7
D: Fern and tulsi

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
MARS

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Class : Class 7
d

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Class : Class 5
D: sunflower and marigold

Ans 4:

Class : Class 7
Sunflower and marigold are naturally yellow in colour. Both of them are used for making yellow dye. Thus, the worker should choose sunflower and marigold flowers for making yellow dye. Hence, the correct answer is D.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 2
Kilogram

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Class : Class 4
Kilogram

Ans 3:

Class : Class 6
Kilogram

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Class : Class 7
S.I unit of mass is kilogram and S.I unit of weight is newton

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 4
Temperature

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Class : Class 5
temparature

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Class : Class 7
TEMPERATURE IT HAS 2 TYPES = ROOM TEMPERATURE MEASURES THE ROOM TEMPERATURE BODY TEMPERATURE MEASURES THE BODY TEMPERATURE

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Class : Class 4
temparature

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Class : Class 2
Temperature

Ans 6:

Class : Class 7
There are two types of thermometer - Celcius or centigrate thermometer and ferenrite thermometer. The ferenrite is usually used to measure our core body temperature

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
Mars

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Class : Class 7
b . We use friction in three types - Static friction , Sliding friction , Rolling friction. Here we are using sliding friction .

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Class : Class 7
B] Frictional force

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Class : Class 7
Mars

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Class : Class 4
B. Frictional Force

Ans 6:

Class : Class 4
B.Frictional Force

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 8
A Hot , Summer

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Class : Class 4
A.Hot,Summer

Ans 3:

Class : Class 7
a. Because woollen clothes trap air and make us feel warm.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
2. Because dehydration means to take water from it .So it will be drying.

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Class : Class 4
2. Drying

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Class : Class 7
calcium

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Class : Class 4
2.Drying

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
c. premolar crushes the food

Ans 2:

Class : Class 4
C. Premolar--Knife

Ans 3:

Class : Class 8
D Molar -- Grinder

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