Mica
Quartz is used as well as plain old plastic or rubber.
No.
Its a insulater
No it is a conductor
a pencil eraser
insulater
it is a girl
conducter
we can keep water cool by kept it in a insulater and in a water cooler which have a special layer made by any insulater
Depends what it's made from.
A rubber band is an insulator. It does not conduct electricity and is used to prevent the flow of electric current.
glass is a non conductor