Properties of materials
Materials All chemical substances that are used to build or manufacture an object are called material. Materials can be raw materials, manufactured materials or alloys. Each materials have their own set of properties which make them unique and suitable for something. Some materials may have the similar properties but rarely the same set of properties. Types of materials There exist many types of materials around the world but the most common main types amongst them are; wood, metal, plastic and stones. Wood/Lumber : comes from trees which are cut down into wood logs and sawn into different sizes. Metal : comes from minerials, normally in rocks, from which they are extracted. Most of them can be from in periodic tables. Plastic : plastic are waste products extracted from rough petrol. Properties of materials Brittleness : Ability of material to break without significant deformation when under stress Hardness : Ability of material to withstand surface deformation and stratch To...