classification of materials

density

mass per unit volume of a substance

hardness

ability of a material to resist penetration and scratching.

strength

ability of an object to withstand an applied stress without failure.

melting point

temperature necessary to change a solid to a liquid

boiling point

temperature at which a liquid changes to a vapor or gas

eletrical conductivity

measure of the ability of a substance to conduct electricity

thermal conductivity

measure of the ability of a substance to conduct heat

flexibility

measure of a material's ability to flex or bend

malleability

ability to be deformed by compression without cracking or rupturing

ductility

ability to deform under tensile stress

ceramic

fibre

plastic

glass

metal

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