Select materials for use, based on their properties.
Selection of materials should be based on
- the performance demands of a product
- the properties and specifications of materials (i.e., plastics, metals, woods, ceramics, and composites)
- ease of manufacturing
- equipment needs and capabilities
- personal and environmental impacts
- the cost variables of alternative materials.
- What are the major types of materials?
- What is the difference between a hardwood and softwood?
- What are two major types of steels?
- What is a composite material?
Related Standards of Learning
The student will investigate and understand that the placement of elements on the periodic table is a function of their atomic structure. The periodic table is a tool used for the investigations of
- average atomic mass, mass number, and atomic number;
- isotopes, half lives, and radioactive decay;
- mass and charge characteristics of subatomic particles;
- families or groups;
- trends including atomic radii, electronegativity, shielding effect, and ionization energy;
- electron configurations, valence electrons, and oxidation numbers;
- chemical and physical properties; and
- historical and quantum models.