BELL JAR DEMO KIT

Demo Number	121
Location	Shelf 14
Description	This is a kit that contains many of the popular demos associated with bell jars. Includes two Nalgene bell jars, one base, all connecting fittings and hoses, styrofoam peanuts, and shaving cream (with a container to put it in). The kit also has an instruction sheet with suggestions. A Bluetooth speaker can be used also (Demo 052 Shelf 12 )
Related Demos	104, 052
Tips	It is recommended that you look at the printed instruction sheet before use–it has good experiments and ways to avoid creating a mess. One of the bell jars has a hook epoxied into it so you can hang demos. The hose fitting to connect the bell jar to the vacuum pump has a quick connect and a shutoff valve so that you can evacuate the bell jar in the demo room and take it to class without the pump. Another good demo for use with the bell jars (though not included in the kit) is the “Weight of Air Balance” (Demo 104 Shelf 13) and a good one to ask the class for predictions before doing the demo (a good way to demonstrate Archimedes’ Principle applies to all fluids including air).

Colorado State University