Material

Material is what everything that you can touch is made of. Even material that is too small to touch, is called material. We use materials to make things. We can also call material "physical substances."

Raw material is materials such as ores which we can clean and mix with other materials to make another material like steel, for example. Cotton is a raw material used to make textiles, which are used to make clothes. Material is not matter, though. Matter is everything in existence. Material is used for things that have use. Refined materials are materials that have been refined, like metal, reduced or converted into better, more useful materials like clothes and tools. Refined materials are usually mixes of other materials, like glue or steel.

Some important materials

 Metals
 Steel
 Aluminum
 Copper
 Gold
 Polymers
 Rubber
 Plastic
 Ceramics
 Glass
 Cement
 Stone
 Textiles
 Cotton fabric
 Wool fabric
 organic materials
 Leather
 Bone
 Paper
 Lumber/wood
 Glue
 Composites
 Fiberglass
 Concrete

 Table of material properties 
 Material Density (kg/m^3) Young's Modulus (GPa) Poisson's Ratio Thermal Conductivity (W/m-K) Specific Heat Capacity (J/kg-K) Ref. Air 1.2 N/A N/A 0.0262 1005  Aluminum 2700 69 0.33 237 910  Copper 8960 130 0.34 401 385  Glass (Pyrex) 2230 64 0.23 1.1 840  Gold 19320 79 0.44 320 129  Water 1000 N/A N/A 0.606 4181 

References

Related pages
Materials science