Fossils into fuels. Fossils into fuels 1. Introduction Page 2 Figure 2. Materials made from fossil fuels are all around us.
Oil is a liquid - though sometimes a very thick one.
This means that oil may be transported and delivered through pipes. Crude oil contains many substances which are useful to us. These substances are separated by fractional distillation. Compare oil with coal. Coal is a solid, which comes in lumps.