Feature

●Vacuum Jar: Place the bell in the jar, and you can hear a clear bell, and then pull out the air, the bell will gradually weaken until no can be heard. Close the exhaust , so that students can observe. The bell still keeps ringing, but no can be heard.
●Experiments: A cup of boiling hot water has been discharged into the bell jar, and then pumped, you can see that the hot water in the cup is boiling again. In addition, this instrument can also be used for experiments such as vacuum fountain, evaporation icing, vacuum coating, and atmospheric pressure.
●Material: Adopting PVC material, the transparent hood can clearly demonstrate the bell , very easy to check.
●Operation: The operation of the physics demonstration is very , so students can have and happier learning in class.
●Convenient Carry: Comes with a light weight and a compact size as well, the whole vacuum bell jar set is very convenient to carry to .


Description

:
Item Type: Vacuum Bell Jar
Material: PVC
Battery: 2 x AA battery, shipped without batteries.

packing list:
1 xVacuum Bell Jar
1 x Bell
1 x Vacuuming Plate