Materials science encompasses various classes of materials.  There are several ways to classify materials. For instance by the type of bonding between the atoms. The metals are of the following groups: ceramics, metals,polymers based on the atomic structure and chemical composition. Polymers are  important part of materials science. Polymers are the raw materials used to make plastics products. Onother category is for metal. A metal is an element, compound, or alloy that is a good conductor of both electricity and heat. Metals are usually shiny, malleable and ductile. Many elements and compounds that are not normally classified as metals become metallic under high pressures.Onother category is ceramics.A ceramic is an inorganic, nonmetallic solid prepared by the action of heat and subsequent cooling. The ceramic materials may have a crystalline or partly crystalline structure. In my opinion the best category is metal because have bigger strength.