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A propane tank, a sheet of metal shaped into a grill, some tubes, and a lighter. Connect the tubes to the propane tank, turn it on, light the lighter and BOOM!!!! You have your grill.
The purpose of a cross over tubes on a gas burner is so that the fire ignited from the main burner can make contact with the gas coming from the other burners.
its used for heating up test tubes and other lab equipment
when you open the hood, it is the two tubes coming toward the grill.
The lit Bunsen burner is used to sterilize the loop, needle, and the openings of test tubes containing cultures, or that will be inoculated.
to heat things up, to hold test tubes while the get heated (mostly to heat things up)
The adjustable air inlet at the end of each of the burner tubes near the fuel nozzle.
A Bunsen Burner is a controlled gas-burning heat source (a "gas candle") that supplies direct heat or flame for scientific experiments and research. (The flame can be blocked by screens to reduce the deposition of soot on test tubes and beakers.)
When heating a substance over a Bunsen burner the iron clamp for test tubes or the wire gauze is placed on top of the iron ring for beakers.
they used tubes, and were AM not really FM
Change the barrel unless it has removeable choke tubes. In that case, change the tube.
They are used in practical experiments, particularly chemistry, to hold test tubes, burettes etc in position over something else such as a Bunsen burner or beaker.