### substance:

Raw material
* All raw materials come from the Earth's crust , the oceans and the atmosphere.
* Most raw materials contain nitrogen
  - have shapes
* Raw Materials Build healthy soil using natural fertilizers, such as chicken manure, and cover crops.
* Some raw materials contain a balance of energy and bulking agent properties
  - sugar
* Some raw materials use in fermentation
  * They are in the form in which they are found in nature without any thing done to them. Raw materials are made into other things
* are industrial equipment
  - inventories needed for the production of goods or services
  - materials used up in production
  - of vital importance for the development of the textile industry
  - resources
  - the only items that bring in income, keeping the ruling classes alive
  - starches
* has worth in every type of manufacturing.
* require for photosynthesis.
* used in brewing are barley, hops, sugar, yeast and water.
* using for making litmus include wood cellulose, lichens and adhering compounds.

Recycle material
* Some recycle materials use in production.
* enter waste.

Recycled material
* are an essential feedstock for Minnesota manufacturers
  - usually a mix of many different grades of the same basic material
* can save money by reducing purchase and transportation costs.
* have a harder time meeting a strict standard of purity than virgin materials.
* is used in all steel production.

Reflective material
* can work like insulation by reflecting heat away.
* works only if there light source.

Refractory material
* are in use in almost all heavy industry
  - used to line high-temperature ovens
* are used to line the inside of high-temperature ovens
  - of ovens used to maintain very high temperatures

### substance:

Refrigerant
* Most refrigerants also increase global warming because they are powerful greenhouse gasses.
* Some refrigerants exhibit high pressures.
* can be a liquid or a vapor, depending on their temperature and pressure.
* flows at a rate that exactly matches compressor capacity
  - helically in a single plane where the axis of the spiral is horizontal
+ Freon: Chemicals
  * The chlorine part of CFC refrigerants can reduce ozone. Most refrigerants also increase global warming because they are powerful greenhouse gasses.
  * A 'refrigerant' is a chemical that is found in an air conditioner, a refrigerator, and in other refrigeration equipment. Refrigerants can be a liquid or a vapor, depending on their temperature and pressure. Most refrigerants in their liquid state will evaporate very fast if at atmospheric pressure, but this depends on the particular refrigerant and its particular boiling point. Refrigerants in their vapor state are compressed by a compressor, then cooled by a condenser, where it condenses back into a liquid. The refrigerant is very hot as it leaves the compressor. At this point, the refrigerant is very cold and it enters an evaporator, where it absorbs heat from the air passing over it. By the time the refrigerant leaves the evaporator, it is all a vapor again, and it goes back to the compressor where the cycle begins again.

### substance | refrigerant:

Cryogen
* are refrigerant.
* is refrigerant

Related substance
* act as antibiotics.
* can compete for the same carrier or pore.

Rigid material
* Most rigid materials have similar structures
* are difficult to bend.