Unit 5a - Fuels

Oil is the source of many fuels and this section deals with their uses. Pollution resulting from burning these fuels is also considered.

Energy in Everyday Life

Energy is used to provide electricity, heating, lighting and cooking for homes as well as the power necessary to allow industry to function.

Burning Substances

Burning is a chemical reaction, to combine with oxygen, in which energy (mainly heat) is released - this kind of reaction is called an exothermic reaction.
Combustion is another word for burning.


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