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Earn 100

Give example for a flammable substance. (Paper / Glass)

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Important Questions on Combustion and Flame

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Science>Chemistry>Combustion and Flame>Combustion
State any two conditions required for combustion.
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Science>Chemistry>Combustion and Flame>Combustion

Write examples for solid fuel.

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Science>Chemistry>Combustion and Flame>Combustion
Guess the use of which fuel would increase and which would decrease in the next 10 years.
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Science>Chemistry>Combustion and Flame>Combustion

Observe the picture given below and write the speciality of the picture.

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MEDIUM
Science>Chemistry>Combustion and Flame>Combustion
Find out from your elders. In the past 10 years use of which cooking fuel has increased in your area? Use of which fuel has decreased?
MEDIUM
Science>Chemistry>Combustion and Flame>Combustion

Observe the picture given below and write the speciality of the picture. 

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Science>Chemistry>Combustion and Flame>Combustion
Can Durga use anything else instead of wood? Why not?
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Science>Chemistry>Combustion and Flame>Combustion
What is dried animal dung used for?
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Science>Chemistry>Combustion and Flame>Combustion

Write examples for gaseous fuel.

MEDIUM
Science>Chemistry>Combustion and Flame>Combustion

Observe the picture given below and write the specialty of the picture. 
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Science>Chemistry>Combustion and Flame>Combustion

Wood is also a fuel used mostly for the purposes of cooking. What else can be used as an alternative? In case you must use wood what would you do?

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Science>Chemistry>Combustion and Flame>Combustion
How do you come to school?
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Science>Chemistry>Combustion and Flame>Combustion
The energy that we get from burining wood is also obtained from the sun.
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Science>Chemistry>Combustion and Flame>Combustion
Find out from your elders. When they were young, what was then used to cook food at home?
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Science>Chemistry>Combustion and Flame>Combustion
Name three fuels used to cook food at home.
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Science>Chemistry>Combustion and Flame>Combustion
What is cow dung used for? 
MEDIUM
Science>Chemistry>Combustion and Flame>Combustion

Observe the picture given below and write the speciality of the picture.

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Science>Chemistry>Combustion and Flame>Combustion

What do we make with wood?

MEDIUM
Science>Chemistry>Combustion and Flame>Combustion
Animal dung is used as good manure and fuel.
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Science>Chemistry>Combustion and Flame>Combustion
Resources that are limited and take years in their formation _____.