C2.3 Why does it help to know about the molecular structure of materials such as plastics and fibres? MOLECULAR STRUCTURE OF MATERIALS It is possible to produce a wide range of different polymers with properties that make them suited to a particular use. The...
C2.4 What is nanotechnology and why is it important? NANOSCIENCE refers to the study of materials that are 1-100 nanometres in size, which is roughly about the same size as some molecules. NANOTECHNOLOGY is the science of building on a very tiny scale. It is the...
C2.2 Why is crude oil important as a source of new materials such as plastics and fibres? The materials that we use are chemicals or mixtures of chemicals and include metal and include metals, polymers and ceramics. Materials can be obtained or made from living things...
C2.1 How do we measure the properties of materials and why are the results useful? Different materials behave in different ways because they have different PROPERTIES. Solid materials can differ in one or more of the following ways: Melting point Strength in tension...