Assertion: test tube | /r/MadeOf | glass
Facets:
value: usually
type: TEMPORAL
value: for its relative resistance to heat
type: CAUSE
Source sentences:
text: Although most test tubes are made of glass, plastic test tubes are used in biological applications, and come in a variety of plastic test tube types such as polystyrene (PS) and polypropylene (PP).
text: Test tubes intended for general chemical work are usually made of glass, for its relative resistance to heat.
text: They can be made of ceramic or metal, but they're usually made of glass or plastic.
text: Test tubes are delicate equipment, usually made of glass.
text: A test tube, also known as a culture tube or sample tube, is a tubular equipment made of glass or plastic.
text: A test tube is a tubular equipment made of glass or plastic.