National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
bases that are completely soluble in water

Ans 2:

Class : Class 8
Alkalis are water-soluble bases. They are spelt 'alkalis and not alkaleis'.

Ans 3:

Class : Class 8
Alkalies are the bases that are soluble in water.Some bases are not soluble in water they are not called alkalies

Ans 4:

Class : Class 8
Alkalies are the bases which are soluble in water

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
Mixtures which are not uniform

Ans 2:

Class : Class 7
so i hope you know what a mixture is. well a mixture a mixture is two or more elements or compounds mixed together but not chemically combined are called mixtures . they can be easily seperated. example: air is mixture of gases like nitrogen oxygen etc. now a heterogenious mixture is a mixture that composes of components that are not uniform and have totally different properties. i hope this answer helps.

Ans 3:

Class : Class 9
Mixture whose components are not uniform means having different properties

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9
mixtures in which the properties of the elements are retained

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 8
A Homogenous Mixture contains a uniform composition type of a mixture. Some examples, are air.

Ans 2:

Class : Class 7
A mixture which has uniform composition and properties throughout. Ex:air

Ans 3:

Class : Class 8
A mixture which is uniform is called homogenous mixture

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Subject :NSO    Class : Class 2

Ans 1:

Class : Class 4
Milky Way ( Aakash Ganga)

Ans 2:

Class : Class 4
milkyway

Ans 3:

Class : Class 4
milkyway

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 8
WHAT NONSENSE???

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
a substance that increases the rate of reaction in a matter

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
potential hydrogen

Ans 2:

Class : Class 5
pouvoire hydrogene

Ans 3:

Class : Class 5
a substance the increases the rate of reaction in a matter

Ans 4:

Class : Class 8
PH stands for Potential Hydrogen

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 5
Birds have a proper body structure. There bones are light. They have feathers which helps them to fly. They use there tails as rudders to change direction.

Ans 2:

Class : Class 5
Birds fly using their wings

Ans 3:

Class : Class 5
birds fly by the help of their aerodynamic body hollow bones and wings

Ans 4:

Class : Class 7
Hollow bones to reduce body mass , feathers covering their body ,a stream lined body with powerful tail and wings with powerful muscles are the adaptations in birds for for flying.

Ans 5:

Class : Class 6
Birds have hollow bones and streamlined body to fly

Ans 6:

Class : Class 8
Birds have hollow bones which make them light. They also have streamlined body which help them to fly in the air.

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