The city's fire department operates out of three (3) different fire stations. Each station is manned by at least two (2) firefighter-EMT's; and there are two (2) firefighter-paramedics assigned to each shift.
One of these materials - silicon - is making it possible for you to read these words right now! That's because silicon is the essential material in an electronic computer chip. Semiconductor means a material can conduct electricity with a bit of help in the form of added impurities..
Basically any physical thing than can be combined or made into another physical thing is a material. Just looking around my desk, plastic is a common material in my phone and â¦some pens. Wood is a material in pencils, and the desk itself. Silicon is a material in the computer. Nitrogen is a material in the air.