From what materials are the following matarials are made up of (a)test tube rack(b)test tube holder(c)measuring cylinder (d)wire gauze(e)mortar and pestle
Answers
Explanation:a) Test tube rack is made up of wood or plastic.
(b) Test tube holder is made up of a iron clamp at front and wood or plastic handle at other end.
(c) Measuring cylinder is made of glass.
(d) Wire gauze is made of meshed iron wire and a thin asbestos sheet that is fixed at its centre.
(e) Morter and pestle is made of porcelain.
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Answer:
a)test tube rack -The test tube rack is commonly made up of metal wires, but you can also found them as plastic, polystyrene, fiberglass, and polypropylene and more.
b)test tube holder-i have generally seen wooden holder commonly
c)measuring cylinder- mostly they are made of polypropylene for its excellent chemical resistance or polyethylene for its transparency, which make them lighter and less delicate than glass.
d)wire gauze- they are woven from metals such as iron,steel,copper...
sorry i don't know about the last one
Explanation: