Page 11 - Primary Seven Notes

Importance of petroleum products

 It is used to generate power that can run machines and vehi-

cles.

 They are burnt to produce light and heat.

 Use to make fuel for vehicles

Other products from petroleum.

 Plastics, polythene paper, tar, dye, detergents, Vaseline, mat-

tresses, grease, paint.
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Coal

Importance of coal.

 Used as fuel in steam engines.

 Coal is burnt to produce thermal electricity

 It is used to make tar for surfacing roads.

 Coal is used to generate heat

 It is used to make fertilizers, etc.